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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"));
    }
}


.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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