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Commands

RadDiagram provides a powerful set of RoutedUICommands that help you work with your RadDiagram and its items easily and build better MVVM applications.

RadDiagram Commands

The static DiagramCommands class defines the following RoutedUICommands:

  • Align- Aligns the selected shapes.

  • Snap- Snaps the selected shapes.

  • Layout- Organizes the diagram automatically.

  • Copy- Copies selected diagram items.

  • Paste- Pastes selected diagram items.

  • Delete- Deletes selected diagram items.

  • Cut- Cut selected diagram items.

  • Duplicate- Duplicates selected item/s.

  • Undo- Undoes the last action.

  • Redo- Redoes the last action.

  • BringToFront- Brings to front selected diagram items.

  • BringForward- Brings forward selected diagram items.

  • SendToBack- Sends to back selected diagram items.

  • SendBackward- Sends backward selected diagram items.

  • Clear- Clears the diagram.

  • BeginEdit- Begins editing diagram item.

  • CommitEdit- Commits the edited changes.

  • CancelEdit- Cancels the edited changes.

  • SelectAll- Selects all shapes in the diagram.

  • Nudge- Moves selected item/s in a specific direction. You can pass more specifics about the nudge operation through the CommandParameter. This parameter can be a single string representing the direction of the nudge:

    • Left

    • Right

    • Up

    • Down - it can also be a string in the form of "direction; amount", the 'direction' being a value from the above list of direction strings. The 'amount' options are:

      • Small - if the RadDiagram.IsSnapToGridEnabled property is set to true then this amount would mean that the nudge should happen once to the appointed direction using the SnapX/Y value as a step. The snap settings can be applied in the RadDiagram definition. If the RadDiagram.IsSnapToGridEnabled property is false, a "Small" amount indicates a step of 5 pixels;

      • Large - if the RadDiagram.IsSnapToGridEnabled property is set to true then this amount would mean that the nudge should happen once to the appointed direction using 5*SnapX/Y value as a step. The snap settings can be applied in the RadDiagram definition. If the RadDiagram.IsSnapToGridEnabled property is false, a "Large" amount indicates a step of 10 pixels;

      • any number - if you provide a number in the CommandParameter, this number would indicate the number of pixels to be used as a step for the Nudge command.

  • Group- Groups the selected items.

  • Ungroup- Ungroups the selected groups.

Using Diagram Commands

Below is shown a sample code snippet how you can use some of the Diagram Commands in an application by using the DiagramElement.TryExecuteCommand method:


private void radButton1_Click(object sender, EventArgs e)
{
    this.radDiagram1.DiagramElement.TryExecuteCommand(Telerik.WinControls.UI.Diagrams.DiagramCommands.Copy);
}

private void radButton2_Click(object sender, EventArgs e)
{
    this.radDiagram1.DiagramElement.TryExecuteCommand(Telerik.WinControls.UI.Diagrams.DiagramCommands.Paste);
}

private void radButton3_Click(object sender, EventArgs e)
{
    this.radDiagram1.DiagramElement.TryExecuteCommand(Telerik.WinControls.UI.Diagrams.DiagramCommands.Nudge, "Left");
}

Private Sub RadButton1_Click(sender As Object, e As EventArgs) Handles RadButton1.Click
    Me.RadDiagram1.DiagramElement.TryExecuteCommand(Telerik.WinControls.UI.Diagrams.DiagramCommands.Copy)
End Sub
Private Sub RadButton2_Click(sender As Object, e As EventArgs) Handles RadButton2.Click
    Me.RadDiagram1.DiagramElement.TryExecuteCommand(Telerik.WinControls.UI.Diagrams.DiagramCommands.Paste)
End Sub
Private Sub RadButton3_Click(sender As Object, e As EventArgs) Handles RadButton3.Click
    Me.RadDiagram1.DiagramElement.TryExecuteCommand(Telerik.WinControls.UI.Diagrams.DiagramCommands.Nudge, "Left")
End Sub

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