IModelling.StartsWith

Fore Syntax

StartsWith(Str: String; SubStr: String): Boolean;

Fore.NET Syntax

StartsWith(Str: string; SubStr: string): boolean;

Parameters

Str. Source string.

SubStr. Searched substring.

Description

The StartsWith method returns whether a source string starts with the searched substring.

Comments

Available values:

True. A source string starts from the searched substring.
False. A source string does not start from the searched substring.

Spaces at the beginning of the string and substring are ignored. Substring search in the source string is case-sensitive.

To get whether a source string starts from the searched substring, use the IModelling.EndsWith method.

Fore Example

To execute the example, add a link to the Ms system assembly.

Sub UserProc;
Var
    Func: Modelling;
    res: Boolean;
Begin
    Func := New Modelling.Create;
    res := Func.StartsWith("Calculator", "Calc");
    Debug.WriteLine("EndsWith(""" + "Calculator" + """, """ + "Calc""" + ") = " + res.ToString);
End Sub UserProc;

After executing the example the console window displays whether the Calculator string starts from the Calc string.

Fore.NET Example

The requirements and result of the Fore.NET example execution match with those in the Fore example.

Imports Prognoz.Platform.Interop.Ms;
…
Public Shared Sub Main(Params: StartParams);
Var
    Func: IModelling;
    res: Boolean;
Begin
    Func := New Modelling.Create();
    res := Func.StartsWith("Calculator", "Calc");
    System.Diagnostics.Debug.WriteLine("StartsWith(""" + "Calculator"
        + """, """ + "Calc""" + ") = " + res.ToString());
End Sub;

Example of Use in Expressions

Expression:

StartsWith("Calculator", "calc")

Result: False.

Expression 2:

StartsWith("Calculator", " Calc")

Result: True.

Use: expressions can be used in model formulas of modeling container, in formulas of time series database calculated series, in formulas of the modeling container that is a child one for time series database in formula editor.