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IndexOf Method (DataColumn)
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DataColumnCollection.IndexOf Method (DataColumn)

Gets the index of a column specified by name.

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

public int IndexOf(
	DataColumn column
)

Parameters

column
Type: System.Data.DataColumn

The name of the column to return.

Return Value

Type: System.Int32
The index of the column specified by column if it is found; otherwise, -1.

The IndexOf method is not case-sensitive.

The following example uses the Contains method to determine whether a specified column exists in a DataColumnCollection. If so, the IndexOf method returns the index of the column.

private void GetIndex(DataTable table)
{
    DataColumnCollection columns = table.Columns;
    if(columns.Contains("City")) 
    {
        Console.WriteLine(columns.IndexOf("City"));
    }
}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

.NET Framework

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

.NET Compact Framework

Supported in: 3.5, 2.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

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