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DataGridViewDataErrorEventArgs Class

Note: This class is new in the .NET Framework version 2.0.

Provides data for the DataError event.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

public class DataGridViewDataErrorEventArgs : DataGridViewCellCancelEventArgs
public class DataGridViewDataErrorEventArgs extends DataGridViewCellCancelEventArgs
public class DataGridViewDataErrorEventArgs extends DataGridViewCellCancelEventArgs

Handling the DataError event lets you handle exceptions thrown by code outside your control (for example, by an external data source). Use the Context property to determine the state of the DataGridView at the time of the exception. Use the Exception property to retrieve the exception data. If you want to handle the exception by additional event handlers, set the ThrowException property to true.

The following code example demonstrates how to respond to information provided by the DataGridViewDataErrorEventArgs class.

private void DataGridView1_DataError(object sender, DataGridViewDataErrorEventArgs anError)
{

    MessageBox.Show("Error happened " + anError.Context.ToString());

    if (anError.Context == DataGridViewDataErrorContexts.Commit)
    {
        MessageBox.Show("Commit error");
    }
    if (anError.Context == DataGridViewDataErrorContexts.CurrentCellChange)
    {
        MessageBox.Show("Cell change");
    }
    if (anError.Context == DataGridViewDataErrorContexts.Parsing)
    {
        MessageBox.Show("parsing error");
    }
    if (anError.Context == DataGridViewDataErrorContexts.LeaveControl)
    {
        MessageBox.Show("leave control error");
    }

    if ((anError.Exception) is ConstraintException)
    {
        DataGridView view = (DataGridView)sender;
        view.Rows[anError.RowIndex].ErrorText = "an error";
        view.Rows[anError.RowIndex].Cells[anError.ColumnIndex].ErrorText = "an error";

        anError.ThrowException = false;
    }
}

System.Object
   System.EventArgs
     System.ComponentModel.CancelEventArgs
       System.Windows.Forms.DataGridViewCellCancelEventArgs
        System.Windows.Forms.DataGridViewDataErrorEventArgs
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0
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