DataTableMappingCollection.Add Method (Object)

 

Adds an Object that is a table mapping 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 DataTableMapping object to add to the collection.

Return Value

Type: System.Int32

The index of the DataTableMapping object added to the collection.

Exception Condition
InvalidCastException

The object passed in was not a DataTableMapping 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
Available since 1.1
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