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DataGrid.ReadOnlyChanged Event

Occurs when the ReadOnly property value changes.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public event EventHandler ReadOnlyChanged

For more information about handling events, see Consuming Events.

The following code example demonstrates the use of this member.

// Attach to event handler.
private void AttachReadOnlyChanged()
   this.myDataGrid.ReadOnlyChanged += new EventHandler(this.myDataGrid_ReadOnlyChanged);
// Check if the 'ReadOnly' property is changed.
private void myDataGrid_ReadOnlyChanged(object sender, EventArgs e)
   string strMessage = "false";
   if(myDataGrid.ReadOnly == true)
      strMessage = "true";

   MessageBox.Show("Read only changed to "+strMessage,
      "Message",   MessageBoxButtons.OK,
// Toggle the 'ReadOnly' property.
private void button2_Click(object sender, EventArgs e)
   if(myDataGrid.ReadOnly == true)
      myDataGrid.ReadOnly = false;
      myDataGrid.ReadOnly = true;

.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.