Hi,
I'm trying to validate one of a related radcombobox controls, but there is few problems (Please view the sample application):
1) In the usercontrol there is in addition to the radcombobox controls, a RadUpload control which must be validated too (Check size of an image). So by addding a custom validator to the usercontrol, the related combobox (in the screen-shot) doesn't load the items and allways displays "Loading...".
But by removing the customvalidator control (Or even by removeing the "OnServerValidate="ImgRadUploadDimCustomValidator_ServerValidate"" property), then the related radcombobox loads all required items.
2) As it is known, the related combobox shows items by selecting the required item in the source combobox. So, I'm trying to set a Comparevalidator (Called "ParentIDCompareValidator") to the related comboboX (Which has a "Select Parent" item - default item).So By selecting the "Select Parent" item the validation message must be displayed.
I don't know how can I set a comparevalidator in order to enable it validate the selected item when the required items are loaded. Please try to enable the "ParentIDCompareValidator" control and you will see that the error message is allways displayed.
3) By clicking insert/Edit buttons, Only the default item value saved in the database, and not the selected item. Thats mean, if I select any item (except to the default item) and click submit, then the default item value ("1") saved on the DB.
Please, I need your help in order to solve the above problems.
Regards,
Bader
2 Answers, 1 is accepted
1) This is probably caused by improper definition of which controls should invoke validation and which should not. If you need only the buttons to fire validation, make sure you've set the CausesValidation property for the rest of the controls, like comboboxes to false.
2) CompareValidator is not the most suitable one here. You would better use custom validator again.
3) If the combobox items are loaded on demand, then to extract the new value try using the Text property, instead of getting the SelectedValue.
Greetings,
Iana Tsolova
the Telerik team
Rank 1
Thank you very much for your reply.
1) Regarding the first point, as I mentioned in my first post the OnServerValidate property of the custom validator causes the problem (The related combobox doesn't load its items and allways shows "Loading.."). And the custom validator control doens't have CausesValidation property.
Regarding the other problems, they me be caused because of the above problem.
2) I noticed that by clicking the Edit link the entire page PostBacks (Because the ajax is disabled when it is needed to upload files using RadGrid EditForm) . How can I solve this issue ?
Please, I need your help in solving the above problems (Please download the sample project).
Regards,
Bader