{"id":1092,"date":"2013-04-21T21:31:27","date_gmt":"2013-04-21T18:31:27","guid":{"rendered":"http:\/\/www.water-simulation.com\/wsp\/?p=1092"},"modified":"2014-02-25T09:38:01","modified_gmt":"2014-02-25T06:38:01","slug":"using-epanet-toolkit-in-csharp","status":"publish","type":"post","link":"http:\/\/www.water-simulation.com\/wsp\/2013\/04\/21\/using-epanet-toolkit-in-csharp\/","title":{"rendered":"Using EPANet Toolkit in C#"},"content":{"rendered":"

Update 24\/02\/2014:<\/strong><\/span> there is new EPANET C# class here<\/span><\/a>.<\/span><\/p>\n

Thanks to abcprogramlama<\/a>\u00a0(site in Turkish)\u00a0I finally got the EPANet Toolkit working in C# (C-sharp).\u00a0First the EpanetCSharpLibrary\u00a0should be added to the solution (click to expend or download here<\/a>):<\/p>\n

[code language=”csharp” collapse=”true”]
\nusing System;
\nusing System.Runtime.InteropServices;<\/p>\n

namespace EpanetCSharpLibrary
\n{
\n public static class Epanet
\n {
\n public const string EPANETDLL = "epanet2.dll";
\n public const int EN_ELEVATION = 0;
\n public const int EN_BASEDEMAND = 1;
\n public const int EN_PATTERN = 2;
\n public const int EN_EMITTER = 3;
\n public const int EN_INITQUAL = 4;
\n public const int EN_SOURCEQUAL = 5;
\n public const int EN_SOURCEPAT = 6;
\n public const int EN_SOURCETYPE = 7;
\n public const int EN_TANKLEVEL = 8;
\n public const int EN_DEMAND = 9;
\n public const int EN_HEAD = 10;
\n public const int EN_PRESSURE = 11;
\n public const int EN_QUALITY = 12;
\n public const int EN_SOURCEMASS = 13;
\n public const int EN_INITVOLUME = 14;
\n public const int EN_MIXMODEL = 15;
\n public const int EN_MIXZONEVOL = 16;
\n public const int EN_TANKDIAM = 17;
\n public const int EN_MINVOLUME = 18;
\n public const int EN_VOLCURVE = 19;
\n public const int EN_MINLEVEL = 20;
\n public const int EN_MAXLEVEL = 21;
\n public const int EN_MIXFRACTION = 22;
\n public const int EN_TANK_KBULK = 23;
\n public const int EN_DIAMETER = 0;
\n public const int EN_LENGTH = 1;
\n public const int EN_ROUGHNESS = 2;
\n public const int EN_MINORLOSS = 3;
\n public const int EN_INITSTATUS = 4;
\n public const int EN_INITSETTING = 5;
\n public const int EN_KBULK = 6;
\n public const int EN_KWALL = 7;
\n public const int EN_FLOW = 8;
\n public const int EN_VELOCITY = 9;
\n public const int EN_HEADLOSS = 10;
\n public const int EN_STATUS = 11;
\n public const int EN_SETTING = 12;
\n public const int EN_ENERGY = 13;
\n public const int EN_DURATION = 0;
\n public const int EN_HYDSTEP = 1;
\n public const int EN_QUALSTEP = 2;
\n public const int EN_PATTERNSTEP = 3;
\n public const int EN_PATTERNSTART = 4;
\n public const int EN_REPORTSTEP = 5;
\n public const int EN_REPORTSTART = 6;
\n public const int EN_RULESTEP = 7;
\n public const int EN_STATISTIC = 8;
\n public const int EN_PERIODS = 9;
\n public const int EN_NODECOUNT = 0;
\n public const int EN_TANKCOUNT = 1;
\n public const int EN_LINKCOUNT = 2;
\n public const int EN_PATCOUNT = 3;
\n public const int EN_CURVECOUNT = 4;
\n public const int EN_CONTROLCOUNT = 5;
\n public const int EN_JUNCTION = 0;
\n public const int EN_RESERVOIR = 1;
\n public const int EN_TANK = 2;
\n public const int EN_CVPIPE = 0;
\n public const int EN_PIPE = 1;
\n public const int EN_PUMP = 2;
\n public const int EN_PRV = 3;
\n public const int EN_PSV = 4;
\n public const int EN_PBV = 5;
\n public const int EN_FCV = 6;
\n public const int EN_TCV = 7;
\n public const int EN_GPV = 8;
\n public const int EN_NONE = 0;
\n public const int EN_CHEM = 1;
\n public const int EN_AGE = 2;
\n public const int EN_TRACE = 3;
\n public const int EN_CONCEN = 0;
\n public const int EN_MASS = 1;
\n public const int EN_SETPOINT = 2;
\n public const int EN_FLOWPACED = 3;
\n public const int EN_CFS = 0;
\n public const int EN_GPM = 1;
\n public const int EN_MGD = 2;
\n public const int EN_IMGD = 3;
\n public const int EN_AFD = 4;
\n public const int EN_LPS = 5;
\n public const int EN_LPM = 6;
\n public const int EN_MLD = 7;
\n public const int EN_CMH = 8;
\n public const int EN_CMD = 9;
\n public const int EN_TRIALS = 0;
\n public const int EN_ACCURACY = 1;
\n public const int EN_TOLERANCE = 2;
\n public const int EN_EMITEXPON = 3;
\n public const int EN_DEMANDMULT = 4;
\n public const int EN_LOWLEVEL = 0;
\n public const int EN_HILEVEL = 1;
\n public const int EN_TIMER = 2;
\n public const int EN_TIMEOFDAY = 3;
\n public const int EN_AVERAGE = 1;
\n public const int EN_MINIMUM = 2;
\n public const int EN_MAXIMUM = 3;
\n public const int EN_RANGE = 4;
\n public const int EN_MIX1 = 0;
\n public const int EN_MIX2 = 1;
\n public const int EN_FIFO = 2;
\n public const int EN_LIFO = 3;
\n public const int EN_NOSAVE = 0;
\n public const int EN_SAVE = 1;
\n public const int EN_INITFLOW = 10;<\/p>\n

#region Epanet Imports
\n public delegate void UserSuppliedFunction(string param0);
\n \/\/\/ <summary>
\n \/\/\/ Runs a complete EPANET simulation.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="f1">name of the input file<\/param>
\n \/\/\/ <param name="f2">name of an output report file<\/param>
\n \/\/\/ <param name="f3">name of an output output file <\/param>
\n \/\/\/ <param name="vfunc">pointer to a user-supplied function which accepts a character string as its argument<\/param>
\n \/\/\/ <returns>Returns an error code.<\/returns>
\n [DllImport(EPANETDLL, EntryPoint = "ENepanet")]
\n public static extern int ENepanet(string f1, string f2, string f3, UserSuppliedFunction vfunc);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Opens the Toolkit to analyze a particular distribution system.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="param0">name of the input file<\/param>
\n \/\/\/ <param name="param1">name of an output report file<\/param>
\n \/\/\/ <param name="param2">name of an output output file<\/param>
\n \/\/\/ <returns>Returns an error code.<\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENopen")]
\n public static extern int ENopen(string param0, string param1, string param2);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Writes all current network input data to a file using the format of an EPANET input file.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="filename">name of the file where data is saved.<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENsaveinpfile")]
\n public static extern int ENsaveinpfile(string filename);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Closes down the Toolkit system (including all files being processed).
\n \/\/\/ <\/summary>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENclose")]
\n public static extern int ENclose();<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Runs a complete hydraulic simulation with results
\n \/\/\/ for all time periods written to the binary Hydraulics file.
\n \/\/\/ <\/summary>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENsolveH")]
\n public static extern int ENsolveH();<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Transfers results of a hydraulic simulation from the binary Hydraulics file to the binary Output file,
\n \/\/\/ where results are only reported at uniform reporting intervals.
\n \/\/\/ <\/summary>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENsaveH")]
\n public static extern int ENsaveH();<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Opens the hydraulics analysis system.
\n \/\/\/ <\/summary>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENopenH")]
\n public static extern int ENopenH();<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Initializes storage tank levels, link status and settings,
\n \/\/\/ and the simulation clock time prior to running a hydraulic analysis.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="saveflag">0-1 flag indicating if hydraulic results will be saved to the hydraulics file.<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENinitH")]
\n public static extern int ENinitH(int saveflag);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Runs a single period hydraulic analysis, retrieving the current simulation clock time t.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="t">current simulation clock time in seconds.<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENrunH")]
\n public static extern int ENrunH(ref long t);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Determines the length of time until the next hydraulic event occurs in an extended period simulation.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="tstep">time (in seconds) until next hydraulic event occurs or
\n \/\/\/ 0 if at the end of the simulation period.<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENnextH")]
\n public static extern int ENnextH(ref long tstep);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Closes the hydraulic analysis system, freeing all allocated memory.
\n \/\/\/ <\/summary>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENcloseH")]
\n public static extern int ENcloseH();<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Saves the current contents of the binary hydraulics file to a file.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="fname">name of the file where the hydraulics results should be saved.<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENsavehydfile")]
\n public static extern int ENsavehydfile(string fname);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Uses the contents of the specified file as the current binary hydraulics file.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="fname">name of the file containing hydraulic analysis results for the current network.<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENusehydfile")]
\n public static extern int ENusehydfile(string fname);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Runs a complete water quality simulation with results at uniform reporting
\n \/\/\/ intervals written to EPANET’s binary Output file.
\n \/\/\/ <\/summary>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENsolveQ")]
\n public static extern int ENsolveQ();<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Opens the water quality analysis system.
\n \/\/\/ <\/summary>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENopenQ")]
\n public static extern int ENopenQ();<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Initializes water quality and the simulation clock time prior to running a water quality analysis.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="saveflag">0-1 flag indicating if analysis results
\n \/\/\/ should be saved to EPANET’s binary output file at uniform reporting periods.<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = " ENinitQ")]
\n public static extern int ENinitQ(int saveflag);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Makes available the hydraulic and water quality results that occur
\n \/\/\/ at the start of the next time period of a water quality analysis,
\n \/\/\/ where the start of the period is returned in t.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="t">current simulation clock time in seconds.<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENrunQ")]
\n public static extern int ENrunQ(ref long t);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Advances the water quality simulation to the start of the next hydraulic time period.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="tstep">time (in seconds) until next hydraulic event occurs or
\n \/\/\/ 0 if at the end of the simulation period.<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENnextQ")]
\n public static extern int ENnextQ(ref long tstep);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Advances the water quality simulation one water quality time step.
\n \/\/\/ The time remaining in the overall simulation is returned in tleft.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="tleft">seconds remaining in the overall simulation duration.<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENstepQ")]
\n public static extern int ENstepQ(ref long tleft);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Closes the water quality analysis system, freeing all allocated memory.
\n \/\/\/ <\/summary>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENcloseQ")]
\n public static extern int ENcloseQ();<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Writes a line of text to the EPANET report file.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="line">text to be written to file.<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENwriteline")]
\n public static extern int ENwriteline(string line);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Writes a formatted text report on simulation results to the Report file.
\n \/\/\/ <\/summary>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENreport")]
\n public static extern int ENreport();<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Clears any report formatting commands that either appeared in the
\n \/\/\/ [REPORT] section of the EPANET Input file or were issued with the ENsetreport function.
\n \/\/\/ <\/summary>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENresetreport")]
\n public static extern int ENresetreport();<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Issues a report formatting command.
\n \/\/\/ Formatting commands are the same as used in the
\n \/\/\/ [REPORT] section of the EPANET Input file.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="command">text of a report formatting command.<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENsetreport")]
\n public static extern int ENsetreport(string command);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the parameters of a simple control statement.
\n \/\/\/ The index of the control is specified in cindex and
\n \/\/\/ the remaining arguments return the control’s parameters.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="cindex">control statement index<\/param>
\n \/\/\/ <param name="ctype">control type code<\/param>
\n \/\/\/ <param name="lindex">index of link being controlled<\/param>
\n \/\/\/ <param name="setting">value of the control setting<\/param>
\n \/\/\/ <param name="nindex">index of controlling node<\/param>
\n \/\/\/ <param name="level">value of controlling water level or
\n \/\/\/ pressure for level controls or of time of control action (in seconds)
\n \/\/\/ for time-based controls<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetcontrol")]
\n public static extern int ENgetcontrol(int cindex, ref int ctype, ref int lindex,
\n ref float setting, ref int nindex, ref float level);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the number of network components of a specified type.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="countcode">component code<\/param>
\n \/\/\/ <param name="count">number of countcode components in the network<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetcount")]
\n public static extern int ENgetcount(int countcode, ref int count);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the value of a particular analysis option.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="optioncode">an option code<\/param>
\n \/\/\/ <param name="value">an option value<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetoption")]
\n public static extern int ENgetoption(int optioncode, ref float value);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the value of a specific analysis time parameter.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="paramcode">time parameter code<\/param>
\n \/\/\/ <param name="timevalue">value of time parameter in seconds<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgettimeparam")]
\n public static extern int ENgettimeparam(int paramcode, ref int timevalue);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves a code number indicating the units used to express all flow rates.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="unitscode">value of a flow units code number<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetflowunits")]
\n public static extern int ENgetflowunits(ref int unitscode);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the index of a particular time pattern.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="id">pattern ID label<\/param>
\n \/\/\/ <param name="index">pattern index<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetpatternindex")]
\n public static extern int ENgetpatternindex(string id, ref int index);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the ID label of a particular time pattern.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="index">pattern index<\/param>
\n \/\/\/ <param name="id">ID label of pattern<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetpatternid")]
\n public static extern int ENgetpatternid(int index, string id);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the number of time periods in a specific time pattern.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="index">pattern index<\/param>
\n \/\/\/ <param name="len">number of time periods in the pattern<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetpatternlen")]
\n public static extern int ENgetpatternlen(int index, ref int len);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the multiplier factor for a specific time period in a time pattern.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="index">time pattern index<\/param>
\n \/\/\/ <param name="period">period within time pattern<\/param>
\n \/\/\/ <param name="value">multiplier factor for the period<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetpatternvalue")]
\n public static extern int ENgetpatternvalue(int index, int period, ref float value);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the type of water quality analysis called for.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="qualcode">water quality analysis code<\/param>
\n \/\/\/ <param name="tracenode">index of node traced in a source tracing analysis<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetqualtype")]
\n public static extern int ENgetqualtype(ref int qualcode, ref int tracenode);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the text of the message associated with a particular error or warning code.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="errcode">error or warning code<\/param>
\n \/\/\/ <param name="errmsg">text of the error or warning message for errcode<\/param>
\n \/\/\/ <param name="nchar">maximum number of characters that errmsg can hold<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgeterror")]
\n public static extern int ENgeterror(int errcode, string errmsg, int nchar);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the index of a node with a specified ID.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="id">node ID label<\/param>
\n \/\/\/ <param name="index">node index<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetnodeindex")]
\n public static extern int ENgetnodeindex(string id, ref int index);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the ID label of a node with a specified index
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="index">node index<\/param>
\n \/\/\/ <param name="id">ID label of node<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetnodeid")]
\n public static extern int ENgetnodeid(int index, string id);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the node-type code for a specific node.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="index">node index<\/param>
\n \/\/\/ <param name="typecode">node-type code<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetnodetype")]
\n public static extern int ENgetnodetype(int index, ref int typecode);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the value of a specific link parameter.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="index">node index<\/param>
\n \/\/\/ <param name="paramcode">parameter code<\/param>
\n \/\/\/ <param name="value">parameter value<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetnodevalue")]
\n public static extern int ENgetnodevalue(int index, int paramcode, ref float value);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the index of a link with a specified ID.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="id">link ID label<\/param>
\n \/\/\/ <param name="index">link index<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetlinkindex")]
\n public static extern int ENgetlinkindex(string id, ref int index);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the ID label of a link with a specified index.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="index">link index<\/param>
\n \/\/\/ <param name="id">ID label of link<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetlinkid")]
\n public static extern int ENgetlinkid(int index, string id);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the link-type code for a specific link.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="index">link index<\/param>
\n \/\/\/ <param name="typecode">link-type code<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetlinktype")]
\n public static extern int ENgetlinktype(int index, ref int typecode);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the indexes of the end nodes of a specified link.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="index">link index<\/param>
\n \/\/\/ <param name="fromnode">index of node at start of link<\/param>
\n \/\/\/ <param name="tonode">index of node at end of link<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetlinknodes")]
\n public static extern int ENgetlinknodes(int index, ref int fromnode, ref int tonode);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves the value of a specific link parameter.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="index">link index<\/param>
\n \/\/\/ <param name="paramcode">parameter code<\/param>
\n \/\/\/ <param name="value">parameter value<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetlinkvalue")]
\n public static extern int ENgetlinkvalue(int index, int paramcode, ref float value);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Retrieves version.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="version">Version<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENgetversion")]
\n public static extern int ENgetversion(ref int version);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Sets the parameters of a simple control statement.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="cindex">control statement index<\/param>
\n \/\/\/ <param name="ctype">control type code<\/param>
\n \/\/\/ <param name="lindex">index of link being controlled<\/param>
\n \/\/\/ <param name="setting">value of the control setting<\/param>
\n \/\/\/ <param name="nindex">index of controlling node<\/param>
\n \/\/\/ <param name="level">value of controlling water level or pressure
\n \/\/\/ for level controls or of time of control action (in seconds)
\n \/\/\/ for time-based controls<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENsetcontrol")]
\n public static extern int ENsetcontrol(int cindex, int ctype, int lindex,
\n float setting, int nindex, float level);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Sets the value of a parameter for a specific node.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="index">node index<\/param>
\n \/\/\/ <param name="paramcode">parameter code<\/param>
\n \/\/\/ <param name="value">parameter value<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENsetnodevalue")]
\n public static extern int ENsetnodevalue(int index, int paramcode, float value);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Sets the value of a parameter for a specific link.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="index">link index<\/param>
\n \/\/\/ <param name="paramcode">parameter code<\/param>
\n \/\/\/ <param name="value">parameter value<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENsetlinkvalue")]
\n public static extern int ENsetlinkvalue(int index, int paramcode, float value);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Adds a new time pattern to the network.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="id">ID label of pattern<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENaddpattern")]
\n public static extern int ENaddpattern(string id);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Sets all of the multiplier factors for a specific time pattern.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="index">time pattern index<\/param>
\n \/\/\/ <param name="factors">multiplier factors for the entire pattern<\/param>
\n \/\/\/ <param name="nfactors">number of factors in the pattern<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENsetpattern")]
\n public static extern int ENsetpattern(int index, float[] factors, int nfactors);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Sets the multiplier factor for a specific period within a time pattern.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="index">time pattern index<\/param>
\n \/\/\/ <param name="period">period within time pattern<\/param>
\n \/\/\/ <param name="value">multiplier factor for the period<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENsetpatternvalue")]
\n public static extern int ENsetpatternvalue(int index, int period, float value);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Sets the value of a time parameter.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="paramcode">time parameter code<\/param>
\n \/\/\/ <param name="timevalue">value of time parameter in seconds<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENsettimeparam")]
\n public static extern int ENsettimeparam(int paramcode, long timevalue);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Sets the value of a particular analysis option.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="optioncode">an option code<\/param>
\n \/\/\/ <param name="value">an option value<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENsetoption")]
\n public static extern int ENsetoption(int optioncode, float value);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Sets the level of hydraulic status reporting.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="statuslevel">level of status reporting<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENsetstatusreport")]
\n public static extern int ENsetstatusreport(int statuslevel);<\/p>\n

\/\/\/ <summary>
\n \/\/\/ Sets the type of water quality analysis called for.
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="qualcode">water quality analysis code<\/param>
\n \/\/\/ <param name="chemname">name of the chemical being analyzed<\/param>
\n \/\/\/ <param name="chemunits">units that the chemical is measured in<\/param>
\n \/\/\/ <param name="tracenode">ID of node traced in a source tracing analysis<\/param>
\n \/\/\/ <returns><\/returns>
\n [DllImportAttribute(EPANETDLL, EntryPoint = "ENsetqualtype")]
\n public static extern int ENsetqualtype(int qualcode, string chemname, string chemunits, string tracenode);<\/p>\n

#endregion
\n }
\n}
\n[\/code]<\/p>\n

Now the EPANet class can be used:<\/p>\n

[code language=”csharp” collapse=”false”]
\npublic static void Main()
\n {
\n int i = 0;
\n int v = 0;
\n string f1="", f2="", f3="";
\n \/\/get the DLL’s version
\n i = Epanet.ENgetversion(ref v);<\/p>\n

f1 = "Net1.inp";
\n f2 = "out.txt";
\n f3 = "rep.txt";
\n \/\/run an EPANet simulation
\n i = Epanet.ENepanet(f1, f2, f3, null);
\n }
\n[\/code]<\/p>\n

Turns out to be simple…<\/p>\n","protected":false},"excerpt":{"rendered":"

Update 24\/02\/2014: there is new EPANET C# class here. Thanks to abcprogramlama\u00a0(site in Turkish)\u00a0I finally got the EPANet Toolkit working in C# (C-sharp).\u00a0First the EpanetCSharpLibrary\u00a0should be added to the solution (click to expend or download here): [code language=”csharp” collapse=”true”] using …<\/p>\n

Using EPANet Toolkit in C#<\/span> Read More »<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,7],"tags":[158,159],"class_list":["post-1092","post","type-post","status-publish","format-standard","hentry","category-epanet-related","category-programming","tag-c","tag-csharp"],"_links":{"self":[{"href":"http:\/\/www.water-simulation.com\/wsp\/wp-json\/wp\/v2\/posts\/1092","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.water-simulation.com\/wsp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.water-simulation.com\/wsp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.water-simulation.com\/wsp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.water-simulation.com\/wsp\/wp-json\/wp\/v2\/comments?post=1092"}],"version-history":[{"count":2,"href":"http:\/\/www.water-simulation.com\/wsp\/wp-json\/wp\/v2\/posts\/1092\/revisions"}],"predecessor-version":[{"id":1289,"href":"http:\/\/www.water-simulation.com\/wsp\/wp-json\/wp\/v2\/posts\/1092\/revisions\/1289"}],"wp:attachment":[{"href":"http:\/\/www.water-simulation.com\/wsp\/wp-json\/wp\/v2\/media?parent=1092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.water-simulation.com\/wsp\/wp-json\/wp\/v2\/categories?post=1092"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.water-simulation.com\/wsp\/wp-json\/wp\/v2\/tags?post=1092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}