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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: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0
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