I have a celledittemplate with a button inside that template, bound with command and command parameter.
When i enter the cell in edit mode it initializes the command but it is missing it's datacontext.
I found out that when i retrigger my command's RaiseCanExecuteChanged on the PreparedCellForEdit the datacontext is known.
So i was wondering if the datacontext is being set to late on the celledittemplate.
I would find it rather stupid to have to use the PreparedCellForEdit event everytime i need this behaviour
1 Answer, 1 is accepted
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Hello Jimmy,
Yes, you are right. The data context comes a bit after the initial data binding evaluation. Usually, this is okay because when the data context appears, the bindings re-evaluate and everything works properly. But when using commands you will need to raise the CanExecute handler manually when the cell is loaded. A possible approach for this would be to use the PreparedCellForEdit event as you are already doing. Or you can use a custom column that you can re-use across the different RadGridView instances you are using. You can raise the command in the PrepareCellForEdit() override of the column. I've attached a small example showing this approach. I hope it helps.
Regards,
Martin Ivanov
Progress Telerik
Yes, you are right. The data context comes a bit after the initial data binding evaluation. Usually, this is okay because when the data context appears, the bindings re-evaluate and everything works properly. But when using commands you will need to raise the CanExecute handler manually when the cell is loaded. A possible approach for this would be to use the PreparedCellForEdit event as you are already doing. Or you can use a custom column that you can re-use across the different RadGridView instances you are using. You can raise the command in the PrepareCellForEdit() override of the column. I've attached a small example showing this approach. I hope it helps.
Regards,
Martin Ivanov
Progress Telerik
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