Dear All,
I am working on a project with RadMenu and RadGrid. I will define the RadGrid structure programatically in Page_Init method. As long as I change the selected MenuItem, I would like to reload the RadGrid structure based on the configuration by looking into database with RadMenu SelectedValue. However, it doesn't work for me in Page_Init to get SelectedValue of RadMenu. Can anyone help?
Thanks.
I am working on a project with RadMenu and RadGrid. I will define the RadGrid structure programatically in Page_Init method. As long as I change the selected MenuItem, I would like to reload the RadGrid structure based on the configuration by looking into database with RadMenu SelectedValue. However, it doesn't work for me in Page_Init to get SelectedValue of RadMenu. Can anyone help?
Thanks.
3 Answers, 1 is accepted
0
Hi Mac,
In order to preserve its SelectedValue property, RadMenu saves it into the ViewState. Unfortunately, the ViewState is not yet available in the Page_Init event and this is why you are not able to access the aforementioned property. The ViewState loading occurs after the Page_Init event and before the Page_Load event. Here is the complete lifecycle:
1. Init
2. InitComplete
3. LoadViewState
4. LoadPostbackdata
5. PreLoad
6. Load
7. RaisePostbackEvent
8. LoadComplete
9. Prerender
10. PrerenderComplete
11. SaveViewstate
12. SaveStateControl
13. Render
14. Unload
I suggest you to hook on event that is after the LoadViewState if you need to use any of the properties of RadMenu.
I hope this makes sense.
Kind regards,
Genady Sergeev
the Telerik team
Instantly find answers to your questions on the new Telerik Support Portal.
Watch a video on how to optimize your support resource searches and check out more tips on the blogs.
In order to preserve its SelectedValue property, RadMenu saves it into the ViewState. Unfortunately, the ViewState is not yet available in the Page_Init event and this is why you are not able to access the aforementioned property. The ViewState loading occurs after the Page_Init event and before the Page_Load event. Here is the complete lifecycle:
1. Init
2. InitComplete
3. LoadViewState
4. LoadPostbackdata
5. PreLoad
6. Load
7. RaisePostbackEvent
8. LoadComplete
9. Prerender
10. PrerenderComplete
11. SaveViewstate
12. SaveStateControl
13. Render
14. Unload
I suggest you to hook on event that is after the LoadViewState if you need to use any of the properties of RadMenu.
I hope this makes sense.
Kind regards,
Genady Sergeev
the Telerik team
Instantly find answers to your questions on the new Telerik Support Portal.
Watch a video on how to optimize your support resource searches and check out more tips on the blogs.
0
Mac
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answered on 02 Dec 2009, 01:54 AM
Thanks a lot for your reply.
However, I still wonder if I could create the GridBoundColumn and GridTemplateColumn for RadGrid dynamically with the help of RadMenu.SelectedValue? So far, it seems I can't create these columns in Page_Load.
However, I still wonder if I could create the GridBoundColumn and GridTemplateColumn for RadGrid dynamically with the help of RadMenu.SelectedValue? So far, it seems I can't create these columns in Page_Load.
0
Hi Mac,
I am afraid that RadGrid does not support mixing declarative and dynamic columns creation as described here. I suggest that you create your grid entirely on Page_Init. There you can try getting the Menu selected value as it is done for a DropDownList control in this help article.
Greetings,
Iana
the Telerik team
Instantly find answers to your questions on the new Telerik Support Portal.
Watch a video on how to optimize your support resource searches and check out more tips on the blogs.
I am afraid that RadGrid does not support mixing declarative and dynamic columns creation as described here. I suggest that you create your grid entirely on Page_Init. There you can try getting the Menu selected value as it is done for a DropDownList control in this help article.
Greetings,
Iana
the Telerik team
Instantly find answers to your questions on the new Telerik Support Portal.
Watch a video on how to optimize your support resource searches and check out more tips on the blogs.