Align Tool Gradients with the Toolbar
When you specify a gradient on a toolbar, each tool on the toolbar uses that gradient to draw its background. So if you specify a vertical gradient (i.e., a color fade from top to bottom) on a horizontally oriented toolbar, the vertical gradients on each tool will 'line up' across the toolbar and the gradient will look like one continuous gradient along the entire length of the toolbar.
If you then take the toobar and drag it so that it docks to the left or right, the results are not what you would expect. Since the tools on the toolbar are now positioned one beneath the other, the individual vertical gradients painted on each tool don’t 'line up' along the length of the toolbar.
The solution to this problem is to change the gradient from vertical to horizontal when the toolbar is docked to the left or right. The following code in the ToolbarModified event of UltraToolbarsManager will accomplish this:
Imports Infragistics.Win
Imports Infragistics.Win.UltraWinToolbars
...
Private Sub UltraToolbarsManager1_ToolbarModified(ByVal sender As Object, _
ByVal e As Infragistics.Win.UltraWinToolbars.ToolbarModifiedEventArgs) _
Handles UltraToolbarsManager1.ToolbarModified
Select Case e.ToolbarChangeType
Case ToolbarChangeType.Docked
If e.Toolbar.Key = "UltraToolbar2" Then
If e.Toolbar.DockedPosition = DockedPosition.Left Or _
e.Toolbar.DockedPosition = DockedPosition.Right _
Then
e.Toolbar.Settings. _
Appearance.BackGradientStyle = _
GradientStyle.Horizontal
Else
e.Toolbar.Settings. _
Appearance.BackGradientStyle = _
GradientStyle.Vertical
End If
End If
Case ToolbarChangeType.Undocked
e.Toolbar.Settings.Appearance.BackGradientStyle = _
GradientStyle.Vertical
End Select
End Sub
using Infragistics.Win;
using Infragistics.Win.UltraWinToolbars;
...
private void ultraToolbarsManager1_ToolbarModified(object sender,
Infragistics.Win.UltraWinToolbars.ToolbarModifiedEventArgs e)
{
switch (e.ToolbarChangeType)
{
case ToolbarChangeType.Docked:
if (e.Toolbar.Key == "UltraToolbar2")
{
if (e.Toolbar.DockedPosition == DockedPosition.Left ||
e.Toolbar.DockedPosition ==
DockedPosition.Right)
e.Toolbar.Settings.
Appearance.BackGradientStyle =
GradientStyle.Horizontal;
else
e.Toolbar.Settings.
Appearance.BackGradientStyle =
GradientStyle.Vertical;
}
break;
case ToolbarChangeType.Undocked:
e.Toolbar.Settings.Appearance.BackGradientStyle =
GradientStyle.Vertical;
break;
}
}
| image::images/WinToolbarsManager_Align_Tool_Gradients_with_the_Toolbar_01.png[shows how to align ultratoolbarsmanager toolbar gradient on a horizontal toolbar] |
image::images/WinToolbarsManager_Align_Tool_Gradients_with_the_Toolbar_02.png[shows how to align ultratoolbarsmanager toolbar gradient on a vertical toolbar] |
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