Runtime API

The BasicRuntime assembly is the .NET implementation of the MVsharp MV BASIC runtime. Reference it from C#, Python or JavaScript to call MV BASIC functionality directly.

• Functions

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  404 static functions (526 overloads) covering file I/O, dynamic arrays, sockets, selects and conversions.

  Browse functions

• Exceptions

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  8 exception types raised for aborts, chains, database errors and record locks.

  View exceptions

• Utility types

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  9 supporting classes such as Crc16, Soundex, Timings and the LiteDB sorters.

  View utility types

Namespace summary

Type	Category	Members
AccountNotSetup	Exception	3
AppAbortException	Exception	5
AppQuitException	Exception	3
ChainException	Exception	3
Crc16	Class	1
DbErrorException	Exception	3
DbLockedException	Exception	3
Functions	Static class	526
InvalidArgumentList	Exception	3
LiteDbSort1	Class	3
LiteDbSort2	Class	4
LiteDbSort3	Class	5
ProcessAnsi	Class	1
SelectAbortException	Exception	3
Soundex	Class	1
Timings	Class	1
internalselect	Class	1
tempselect	Class	4

Calling the runtime

MV BASIC values are represented by DynamicArray. Functions that return values through their arguments take them as ref DynamicArray.

C#Python

using BasicRuntime;
using DynArray;

var fileVar = new DynamicArray();
var record  = new DynamicArray();

if (Functions.OPEN("", "CONTRACT", fileVar))
{
    Functions.READ(fileVar, "000001", record, -1, false, false, false);
    Console.WriteLine(Functions.DCOUNT(record, "\u00FE"));
}

import clr
clr.AddReferenceToFileAndPath(r"C:\Program Files\ProsolGroup\MVSHARP\BasicRuntime.dll")
clr.AddReferenceToFileAndPath(r"C:\Program Files\ProsolGroup\MVSHARP\DynArray.dll")
from BasicRuntime import Functions
from DynArray import DynamicArray

fileVar = DynamicArray()
record = DynamicArray()
if Functions.OPEN("", "CONTRACT", fileVar):
    Functions.READ(fileVar, "000001", record, -1, False, False, False)
    print(Functions.DCOUNT(record, chr(254)))

See Python integration and JavaScript integration for setup details.

About this reference

Generated from the BasicRuntime assembly on 2026-07-15: 573 public members across 18 types. The Test scenario and Expected response rows describe how each member is verified.