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IColumnMappingCollection.RemoveAt Method (String)

Removes the IColumnMapping object with the specified SourceColumn name from the collection.

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

void RemoveAt(
	string sourceColumnName
)

Parameters

sourceColumnName
Type: System.String

The case-sensitive SourceColumn name.

ExceptionCondition
IndexOutOfRangeException

A DataColumnMapping object does not exist with the specified SourceColumn name.

The following example searches for an instance of the derived class, DataColumnMapping, with the given SourceColumn name within a DataColumnMappingCollection collection. If the DataColumnMapping exists, the mapping is removed. This example assumes that a DataColumnMappingCollection collection has been created.


public void RemoveDataColumnMapping() 
{
    // ... 
    // create columnMappings 
    // ... 
    if (columnMappings.Contains("Picture"))
        columnMappings.RemoveAt("Picture");
}

.NET Framework

Supported in: 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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