DataColumnMappingCollection.Remove Method (Object)

 

Removes the Object that is a DataColumnMapping from the collection.

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

public void Remove(
	object value
)

Parameters

value
Type: System.Object

The Object that is the DataColumnMapping to remove.

Exception Condition
InvalidCastException

The object specified was not a DataColumnMapping object.

ArgumentException

The object specified is not in the collection.

The following example searches for a DataColumnMapping 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
Available since 1.1
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