Undo Method

Undoes the last action.

Syntax

Visual Basic
C#

'Declaration
 
Public Sub Undo()

public void Undo()

Example

// <summary>
/// tbStandard_ButtonClick - calls ExecuteDesignerAction, or the associated function
/// based on the button clicked.
/// </summary>
private void tbStandard_ButtonClick(object sender, System.Windows.Forms.ToolBarButtonClickEventArgs e)
{
    if((string)e.Button.Tag == "NewReport")  //New Report was Clicked
    {
        this.ardMain.NewReport();
        this.FillCombo();
    }
    if((string)e.Button.Tag == "Open")  //Open Report was Clicked
    {
        this.OpenReportFile();
    }
    if((string)e.Button.Tag == "Save")  //Save Report was Clicked
    {
        this.SaveReportFile();
    }
    if((string)e.Button.Tag == "SaveAs")  //SaveAs was Clicked
    {
        this.SaveAsReportFile();
    }
    if((string)e.Button.Tag == "ReportSettings")  //ReportSettings was Clicked
    {
        this.ardMain.ExecuteAction(DesignerAction.ReportSettings);
    }
    if((string)e.Button.Tag == "Undo")  //Undo was Clicked
    {
        this.ardMain.UndoManager.Undo();
    }
    if((string)e.Button.Tag == "Cut")  //Cut was Clicked
    {
        this.ardMain.ExecuteAction(DesignerAction.EditCut);
    }
    if((string)e.Button.Tag == "Copy")  //Copy was Clicked
    {
        this.ardMain.ExecuteAction(DesignerAction.EditCopy);
    }
    if((string)e.Button.Tag == "Paste")  //Paste was Clicked
    {
        this.ardMain.ExecuteAction(DesignerAction.EditPaste);
    }
    if((string)e.Button.Tag == "Delete")  //Delete was Clicked
    {
        this.ardMain.ExecuteAction(DesignerAction.EditDelete);
    }
    if((string)e.Button.Tag == "ReorderGroups")  //ReorderGroups was Clicked
    {
        this.ardMain.ExecuteAction(DesignerAction.ReorderGroups);
    }    
}

Visual Basic

'tbStandard_ButtonClick - calls ExecuteDesignerAction, or the associated function
'based on the button clicked.
Private Sub tbStandard_ButtonClick(ByVal sender As Object, ByVal e As System.Windows.Forms.ToolBarButtonClickEventArgs) Handles tbStandard.ButtonClick
    If CStr(e.Button.Tag) = "NewReport" Then 'New Report was Clicked
        Me.ardMain.NewReport()
        Me.FillCombo()
    End If
    If CStr(e.Button.Tag) = "Open" Then 'Open Report was Clicked
        Me.OpenReportFile()
    End If
    If CStr(e.Button.Tag) = "Save" Then 'Save Report was Clicked
        Me.SaveReportFile()
    End If
    If CStr(e.Button.Tag) = "SaveAs" Then 'SaveAs was Clicked
        Me.SaveAsReportFile()
    End If
    If CStr(e.Button.Tag) = "ReportSettings" Then 'ReportSettings was Clicked
        Me.ardMain.ExecuteAction(DesignerAction.ReportSettings)
    End If
    If CStr(e.Button.Tag) = "Undo" Then 'Undo was Clicked
        Me.ardMain.UndoManager.Undo()
    End If
    If CStr(e.Button.Tag) = "Cut" Then 'Cut was Clicked
        Me.ardMain.ExecuteAction(DesignerAction.EditCut)
    End If
    If CStr(e.Button.Tag) = "Copy" Then 'Copy was Clicked
        Me.ardMain.ExecuteAction(DesignerAction.EditCopy)
    End If
    If CStr(e.Button.Tag) = "Paste" Then 'Paste was Clicked
        Me.ardMain.ExecuteAction(DesignerAction.EditPaste)
    End If
    If CStr(e.Button.Tag) = "Delete" Then 'Delete was Clicked
        Me.ardMain.ExecuteAction(DesignerAction.EditDelete)
    End If
    If CStr(e.Button.Tag) = "ReorderGroups" Then 'ReorderGroups was Clicked
        Me.ardMain.ExecuteAction(DesignerAction.ReorderGroups)
    End If
End Sub 'tbStandard_ButtonClick

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

UndoManager Class
UndoManager Members