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[This post is part of the developer's manual preview published on this blog. You can find temporary TOC here.]
RadGrid dataGrid = base.Container.GetControl<RadGrid>("dataGrid", true); |
While, the approach we have demonstrated will work fine there are several problems we may run into:
So, we have seen that there are many problems associated with this approach. The better and more flexible approach would be to declare a virtual property which would hold the reference to a particular control. The code would look like this:
protected virtual RadGrid DataGrid |
{ |
get |
{ |
return base.Container.GetControl<RadGrid>("dataGrid", true); |
} |
} |
First of all, we don’t need to call the GetControl method every time we need to reference the grid. Instead, we can now simply call the property. So, let us suppose we’d like to enable the sorting on the grid in any given method; all we need to do is this:
this.DataGrid.AllowSorting = true; |
base.DataGrid.AllowSorting = false; |
protected override RadGrid DataGrid |
{ |
get |
{ |
return base.Container.GetControl<RadGrid>("financialGrid", true); |
} |
} |
Finally, we had the problem of having our DataGrid being a required control. Similarly to the problem of hard-coded id, we can again override the property and make the control optional.
protected override RadGrid DataGrid |
{ |
get |
{ |
return base.Container.GetControl<RadGrid>("financialGrid", false); |
} |
} |
if(this.DataGrid != null) |
this.DataGrid.AllowSorting = true; |
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