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DataColumnMappingCollection.Add Method (Object)

Adds a DataColumnMapping object to the collection.

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

public int Add(
	Object value
)

Parameters

value
Type: System.Object
A DataColumnMapping object to add to the collection.

Return Value

Type: System.Int32
The index of the DataColumnMapping object that was added to the collection.

Implements

IList.Add(Object)

ExceptionCondition
InvalidCastException

The object passed in was not a DataColumnMapping object.

The following example searches for a DataColumnMapping object within the collection. If the mapping exists in the collection, it is removed. If the mapping does not exist within the collection, it is added to the collection and its index is displayed. The example assumes that a DataColumnMappingCollection collection and a DataColumnMapping object have been created.


public void ChangedMyMind() 
{
    // ...
    // create mappings and mapping
    // ...
    if (mappings.Contains((Object) mapping))
        mappings.Remove((Object) mapping);
    else 
    {
        mappings.Add((Object) mapping);
        Console.WriteLine("Index of new mapping: "
            + mappings.IndexOf((Object) mapping));
    }
}


.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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