IndexOf Method (String)
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DataTableMappingCollection.IndexOf Method (String)

Gets the location of the DataTableMapping object with the specified source table name.

Namespace:  System.Data.Common
Assembly:  System.Data (in System.Data.dll)

public int IndexOf(
	string sourceTable


Type: System.String
The case-sensitive name of the source table.

Return Value

Type: System.Int32
The zero-based location of the DataTableMapping object with the specified source table name.



The following example searches for a DataTableMapping object with the given source table name within a DataTableMappingCollection collection. If the DataTableMapping exists, the example displays the name and the index of the mapping. If the mapping does not exist, the example displays an error. This example assumes that a DataTableMappingCollection collection has been created.

public void FindDataTableMapping() 
    // ...
    // create mappings
    // ...
    if (!mappings.Contains("Categories"))
        Console.WriteLine("Error: no such table in collection");
            ("Name: " + mappings["Categories"].ToString() + "\n"
            + "Index: " + mappings.IndexOf("Categories").ToString());

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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