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DataTableMappingCollection.Contains Method (Object)

Gets a value indicating whether the given DataTableMapping object exists in the collection.

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

public bool Contains(
	Object value
)

Parameters

value
Type: System.Object

An Object that is the DataTableMapping.

Return Value

Type: System.Boolean
true if this collection contains the specified DataTableMapping; otherwise false.

Implements

IList.Contains(Object)

The following example searches for a DataTableMapping 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 DataTableMappingCollection collection and a DataTableMapping 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: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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