Nom du paramètre : Invalid Graph!

Hi,

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

Thanks.



DiagramTest.zip

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:

http://websamples.syncfusion.com/samples/Diagram.Web/F70503/main.htm

Please try this and let me know if this helps.

Thanks,
Vinoth