[Solved] RadGrid Sorting Problem

[Luis]

I have a Rad Grid with the AllowSorting property set to "true" so on each column the column name owkrs as a link that activates the sorting, but the arrow that indicates asc or desc ordering causes an Invalid Postback or Callback Argument error/.

Strange thing is it just happens whis the arrow, not with the links. the links sort the grid with no problems.

Any ideas on how to fix this bug?

[Vlad]

Hi Luis,

Can you post a bit more info how the grid is bound in your case? Please check also if the grid ViewState is not turned off.

All the best,
Vlad
the Telerik team

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[Luis]

Hi. Thanks for your reply.

The Grids I'm using are bound to buisness objects. a Generic List of objects. and the properties of that object are bound to the grid.

Codebehind:

            List<DailyPointsParticipation> HistoryPromoThreshold = new List<DailyPointsParticipation>();
......
                tlkgrdThresholdPromotions.DataSource = HistoryPromoThreshold;
                tlkgrdThresholdPromotions.DataBind();

On my aspx page it is bound to each column like:

                                                                                        <telerik:GridBoundColumn meta:resourcekey="grdPromotionsBoundColumnResource1" UniqueName="colPromotion"                                                                                            DataField="Promotion" HeaderStyle-Width="20%">
</telerik:GridBoundColumn>
                                                                                        <telerik:GridBoundColumn meta:resourcekey="grdPromotionsBoundColumnResource2" UniqueName="colStartDate"
DataField="StartDate" HeaderStyle-Width="20%">
</telerik:GridBoundColumn>
 

The viewState is enabled. and the allow sorting is enabled also. When the grid is displayed the titles of each colum work as a link that sorts by that column and it works fine when click the link text (the name of the column) but, when you click on it) an image appears of an arrow that is either pointing down or up and you can keep on clicking the text to sort, but when you click the arrow the error message appears.

Maybe the grid is not rightly bound but it works when clicking the links. Or maybe the id of the columns is not being set right when the image is clicked... I really dont have a clue.

[Vlad]

Hello Luis,

According to the DataBind() call you do not have NeedDataSource. Generally RadGrid automatic operations are supported if the grid is bound using DataSourceID or NeedDataSource. Please handle NeedDataSource, assing desired DataSource for the grid and do not call DataBind().

All the best,
Vlad
the Telerik team

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[Luis]

Ok. thanks.

It works fine as you say.

[Michael Simmons]

I am having the same issue, clicking on the column names works FINE but clicking on the images does not. I'm not clear on how the binding would make a difference, please advise.
Thank you,
michael

[Yavor]

Hello Michael,

If the problem persists at your end, you can open a formal support ticket, and send us a small working project, for additional review and testing. We will debug it locally, and get back to you with additional information.

Best wishes,
Yavor
the Telerik team

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