DataSet.Clear Method

Clears the DataSet of any data by removing all rows in all tables.

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

public void Clear()

If the DataSet is bound to an XmlDataDocument, calling DataSet.Clear or DataTable.Clear raises the NotSupportedException. To avoid this situation, traverse each table, removing each row one at a time.

The following example clears the DataSet of all rows in all tables.

private void ClearDataSet(DataSet dataSet)
{
    // To test, print the number rows in each table. 
    foreach(DataTable table in dataSet.Tables)
    {
        Console.WriteLine(table.TableName + "Rows.Count = " 
            + table.Rows.Count.ToString());
    }
    // Clear all rows of each table.
    dataSet.Clear();

    // Print the number of rows again. 
    foreach(DataTable table in dataSet.Tables)
    {
        Console.WriteLine(table.TableName + "Rows.Count = "  
            + table.Rows.Count.ToString());
    }
}

.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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