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Nom du paramètre : Invalid Graph!

Thread ID:





70503 Dec 13,2007 04:14 PM UTC Dec 18,2007 01:23 PM UTC ASP.NET Web Forms (Classic) 1
Tags: DiagramWebControl
Hamza Essounni
Asked On December 13, 2007 04:14 PM UTC


I have a dropdownlist from which i select the type of diagram i want to display.

I note that when i select an item from the dropdownlist i fill the hashtable used by the diagram from the database accordingly.

the problem is that i have an exception:

La valeur ne peut pas être null.
Nom du paramètre : Invalid Graph!

I have to find a solution for tomorrow,please help!
PS:I'm using the sample file



Vinoth Kumar K [Syncfusion]
Replied On December 18, 2007 01:23 PM UTC

Hi Hamza,

I regret for the delayed response.

Invalid Graph Exception:

I am able to reproduce the exception. However, this issue can be resolved by setting IsPostBack property to false.

if (this.IsPostBack == false)
..... code


Please refer the modified sample which is available in the below link:


Please try this and let me know if this helps.



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