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Can I display a tooltip when the mouse is hovered over a diagram node?

 

Tooltips can be displayed by using an ALT element for the diagram node. The following code should give you an idea,

Add the following code snippet to Diagram.web\Samples\1.1\OrgLayout sample

C#

protected void LoadNodeDisplayData()

{

EmployeeSymbol emplysymbol = new EmployeeSymbol();

emplysymbol.EmployeeName = emplysymbol.EmployeeName;

emplysymbol.EmployeeID = emplysymbol.EmployeeID;

// Provide a tooltip for the employee symbol.

emplysymbol.SetPropertyValue("ALT", String.Concat("Click to view ", emplysymbol.EmployeeName, "'s contact information."));

this.DiagramWebControl1.Model.AppendChild(emplysymbol);

}

VB

Protected Sub LoadNodeDisplayData()

Dim emplysymbol As EmployeeSymbol = New EmployeeSymbol()

emplysymbol.EmployeeName = emplysymbol.EmployeeName

emplysymbol.EmployeeID = emplysymbol.EmployeeID

' Provide a tooltip for the employee symbol.

emplysymbol.SetPropertyValue("ALT", String.Concat("Click to view ", emplysymbol.EmployeeName, "'s contact information."))

Me.DiagramWebControl1.Model.AppendChild(emplysymbol)

End Sub

This approach is also implemented in Diagram.web\Samples\1.1\CustomDescriptor sample.

Article ID: Published Date: Last Revised Date: Platform: Control:
204 04/30/2011 07/10/2014 ASP.NET Web Forms (Classic) DiagramWebControl
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