I have created a custom PropertyGridItemElement for my RadPropertyGrid to hold a button. When the user clicks the button, the click handler performs some action, but the action is based on data that is known by the form that contains the propertygrid that contains the custom element. How do I arrange for that data to be available to the button's Click handler? The constructor of the custom element isn't even called explicitly -- it's implicit in
PropertyGrid.CreateItemElement += (sender, args) =>
{
if (args.Item.Name == nameof(LabelWrapper.Button))
{
args.ItemElementType = typeof(CustomPropertyGridItemElement);
}
};
Thanks in advance.
2 Answers, 1 is accepted
Hello Michael,
To clarify your approach you have a custom PropertyGridValueElement in which you have added a button, similar to the approach demonstrated in the Custom Items help article. What comes to my mind is to use the Tag property of the custom PropertyGridValueElement. You can subscribe to the ItemFormatting event. In the event handler, you can check the e.VisualElement. If it is the custom one, you can get the custom PropertyGridValueElement and set the Tag property to an object or some other value depending on your requirement.
private void RadPropertyGrid1_ItemFormatting(object sender, PropertyGridItemFormattingEventArgs e)
{
if (e.VisualElement is CustomPropertyGridItemElement)
{
((e.VisualElement as CustomItemElement).ValueElement as CustomPropertyGridValueElement).Tag = "Test";
}
}Then in the click event of the button, you can check the Tag property. Something like that:
public class CustomPropertyGridValueElement : PropertyGridValueElement
{
private RadButtonElement buttonElement;
protected override void CreateChildElements()
{
base.CreateChildElements();
buttonElement = new RadButtonElement();
buttonElement.Click += ClickEventHandler;
this.Children.Add((buttonElement));
}
// other custom code
protected override Type ThemeEffectiveType
{
get
{
return typeof(PropertyGridValueElement);
}
}
private void ClickEventHandler(object sender, EventArgs e)
{
RadMessageBox.Show(this.Tag.ToString());
}
}I hope that this approach will work for you.
Regards,
Dinko | Tech Support Engineer
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