Hello, Dmitriy,
By design, when a certain property is
typeof(Color),
RadPropertyGrid creates
PropertyGridColorItemElement. However, if the color is stored in a string property, the default visual item element will be used. You can handle the
CreateItemElement event and specify what item element to be used. However, note that
PropertyGridColorItemElement expects Color type for the value. That is why it would be necessary to convert your string value to a valid Color. Here is a sample code snippet:
private void RadPropertyGrid1_CreateItemElement(object sender, Telerik.WinControls.UI.CreatePropertyGridItemElementEventArgs e)
{
if (e.Item.Label == "SomeColor")
{
e.ItemElementType = typeof(CustoPropertyGridColorItemElement);
}
}
public class CustoPropertyGridColorItemElement : PropertyGridColorItemElement
{
public ColorEditorColorBox ColorBox
{
get
{
FieldInfo fi = typeof(PropertyGridColorItemElement).GetField("colorBox", BindingFlags.Instance | BindingFlags.NonPublic);
return fi.GetValue(this) as ColorEditorColorBox;
}
}
public override void Synchronize()
{
PropertyGridItem item = (PropertyGridItem)this.Data;
if (item.Value == null || item.Value.Equals(Color.Empty))
{
this.ColorBox.BackColor = Color.Empty;
this.ContentElement.Text = " ";
}
else
{
if (item.Value is Color)
{
this.ColorBox.BackColor = (Color)item.Value;
this.ContentElement.Text = item.FormattedValue;
}
else
{
string value = item.Value.ToString();
this.ColorBox.BackColor = Color.FromArgb(int.Parse(value));
this.ContentElement.Text = item.FormattedValue;
}
}
}
}
I hope this information helps. If you have any additional questions, please let me know.
Regards,
Dess
Progress Telerik
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