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To add ToolTips that display UserData for a column, use C1FlexGrid's MouseMove event to get the UserData property and display it in a ToolTip control.

1. Locate the ToolTip control in the Toolbox and add it to the form.
2. In the Form_Load event, set the UserData property for the AtomicMass column:

   To write code in Visual Basic

   Visual Basic	Copy Code
   Me.C1FlexGrid1.Cols("AtomicMass").UserData = "in atomic mass units (u)"

   To write code in C#

   C#	Copy Code
   this.c1FlexGrid1.Cols["AtomicMass"].UserData = "in atomic mass units (u)";

3. Add the following MouseMove event:

   To write code in Visual Basic

   Visual Basic	Copy Code
   Private Sub C1FlexGrid1_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles C1FlexGrid1.MouseMove Dim tip As String tip = C1FlexGrid1.Cols(C1FlexGrid1.MouseCol).UserData ToolTip1.SetToolTip(C1FlexGrid1, tip) End Sub

   To write code in C#

   C#	Copy Code
   private void c1FlexGrid1_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e) { string tip; tip = (string)c1FlexGrid1.Cols[c1FlexGrid1.MouseCol].UserData; toolTip1.SetToolTip(c1FlexGrid1, tip); }

This topic illustrates the following:

The ToolTip appears within the entire AtomicMass column.

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