RowFormatting going crazy

[Marco]

Hello,

I want to give a different format to some rows (based on a property of the databound items). It works good, but some rows decide, on they own, to use a special format.

If I use only one BackColor and a solid GradientStyle, the problem do not appear (but linear Gradient looks far better. Isn't it?)

Should I have miss something or it's bug ?

Private Sub dgv_Clients_RowFormatting(sender As System.Object, e As Telerik.WinControls.UI.RowFormattingEventArgs) Handles dgv_Clients.RowFormatting

Dim ClientBound As Client = TryCast(e.RowElement.Data.DataBoundItem, Client)
If ClientBound IsNot Nothing AndAlso Helper.ActiveDirectoryHelper.GetInstance.GetCurrentUser.Guid.Equals(ClientBound.FK_OwnerUser) Then
e.RowElement.DrawFill = True
e.RowElement.BackColor = Color.Red
e.RowElement.BackColor2 = Color.White
e.RowElement.BackColor3 = Color.White
e.RowElement.BackColor4 = Color.White
e.RowElement.GradientStyle = GradientStyles.Linear
e.RowElement.GradientAngle = 360
Else
e.RowElement.ResetValue(LightVisualElement.DrawFillProperty, ValueResetFlags.Local)
e.RowElement.ResetValue(LightVisualElement.BackColorProperty, ValueResetFlags.Local)
e.RowElement.ResetValue(LightVisualElement.BackColor2Property, ValueResetFlags.Local)
e.RowElement.ResetValue(LightVisualElement.BackColor3Property, ValueResetFlags.Local)
e.RowElement.ResetValue(LightVisualElement.BackColor4Property, ValueResetFlags.Local)
e.RowElement.ResetValue(LightVisualElement.GradientStyleProperty, ValueResetFlags.Local)
e.RowElement.ResetValue(LightVisualElement.GradientAngleProperty, ValueResetFlags.Local)
End If
End Sub

 

[Ivan Petrov]

Hi Marco,

Thank you for writing.

I do not see an obvious reason in the code for the behavior you are experiencing. I would suggest a slight modification to your code which might make things better. Here is it:

Private Sub dgv_Clients_RowFormatting(sender As System.Object, e As Telerik.WinControls.UI.RowFormattingEventArgs) Handles dgv_Clients.RowFormatting

  Dim ClientBound As Client = TryCast(e.RowElement.Data.DataBoundItem, Client)
  If ClientBound IsNot Nothing AndAlso Helper.ActiveDirectoryHelper.GetInstance.GetCurrentUser.Guid.Equals(ClientBound.FK_OwnerUser) Then
    e.RowElement.DrawFill = True
    e.RowElement.BackColor = Color.Red
    e.RowElement.BackColor2 = Color.White
    e.RowElement.NumberOfColors = 2
    e.RowElement.GradientStyle = GradientStyles.Linear
    e.RowElement.GradientAngle = 360
  Else
    e.RowElement.ResetValue(LightVisualElement.DrawFillProperty, ValueResetFlags.Local)
    e.RowElement.ResetValue(LightVisualElement.BackColorProperty, ValueResetFlags.Local)
    e.RowElement.ResetValue(LightVisualElement.BackColor2Property, ValueResetFlags.Local)
    e.RowElement.ResetValue(LightVisualElement.NumberOfColorsProperty, ValueResetFlags.Local)
    e.RowElement.ResetValue(LightVisualElement.GradientStyleProperty, ValueResetFlags.Local)
    e.RowElement.ResetValue(LightVisualElement.GradientAngleProperty, ValueResetFlags.Local)
  End If
End Sub

This will make the element to always use two colors for the gradient.

 If this does not solve your problem, I would kindly ask you to send me your project or a sample where you reproduce this issue so I can investigate it and give you an accurate response.

Looking forward to your reply.
 
Greetings,
Ivan Petrov
the Telerik team

[Marco]

Hi Ivan, 

Thank you for the NumberOfColors Tip.

I will test this solution as soon as possible and come back here for the result.

[Marco]

Hi Ivan,

Giving a value to the number of colors property has fix the strange behavior of the row format.

Thank you again !