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DataColumnMappingCollection.Contains Method (String)

Gets a value indicating whether a DataColumnMapping object with the given source column name exists in the collection.

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

public bool Contains(
	string value
)

Parameters

value
Type: System.String
The case-sensitive source column name of the DataColumnMapping object.

Return Value

Type: System.Boolean
true if collection contains a DataColumnMapping object with the specified source column name; otherwise, false.

Implements

IColumnMappingCollection.Contains(String)

The following example searches for a DataColumnMapping object with the given source column name within a DataColumnMappingCollection collection. If the DataColumnMapping exists, the example displays the name and the index of the mapping. If the mapping does not exist, the example displays an error. This example assumes that a DataColumnMappingCollection collection has been created.


public void FindDataColumnMapping() 
{
    // ...
    // create columnMappings
    // ...
    if (!columnMappings.Contains("Description"))
        Console.WriteLine("Error: no such table in collection.");
    else
    {
        Console.WriteLine("Name {0}", 
            columnMappings["Description"].ToString());
        Console.WriteLine("Index: {0}", 
            columnMappings.IndexOf("Description").ToString());
    }
}


.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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