Spread WPF 14
Spread WPF Documentation / Developer's Guide / Managing the User Interface / Creating Viewports
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    Creating Viewports
    In This Topic

    You can create horizontal or vertical viewports or both. Viewports allow you to display different parts of a large spreadsheet in a limited viewing area.

    Horizontal and vertical viewports in a spreadsheet

    You can add a viewport in code with the AddRowViewport or AddColumnViewport method.

    You can resize the viewport with the horizontal or vertical split box or bar. When the end user clicks and drags the split box, the view is split into separate viewports.You can specify whether to have a leading or trailing split box for the columns or rows with the ColumnSplitBoxPolicy and RowSplitBoxPolicy properties.

    Trailing aand leading split boxes

    Using Code

    The following example creates viewports.

    CS
    Copy Code
    gcSpreadSheet1.AddColumnViewport(0, 100);
    gcSpreadSheet1.AddRowViewport(0, 80);
    gcSpreadSheet1.RowSplitBoxAlignment = GrapeCity.Windows.SpreadSheet.UI.SplitBoxAlignment.Leading;
    gcSpreadSheet1.ColumnSplitBoxAlignment = GrapeCity.Windows.SpreadSheet.UI.SplitBoxAlignment.Trailing;
    gcSpreadSheet1.Sheets[0].SetViewportHeight(0, 100);
    gcSpreadSheet1.Sheets[0].SetViewportWidth(0, 100);
    gcSpreadSheet1.Invalidate();          
         
            private void button1_Click(object sender, RoutedEventArgs e)
            {
    gcSpreadSheet1.RemoveColumnViewport(0);
    gcSpreadSheet1.RemoveRowViewport(0);
    gcSpreadSheet1.Invalidate();
            }
    
    VB.NET
    Copy Code
    GcSpreadSheet1.AddColumnViewport(0, 100)
    GcSpreadSheet1.AddRowViewport(0, 80)
    GcSpreadSheet1.RowSplitBoxAlignment = GrapeCity.Windows.SpreadSheet.UI.SplitBoxAlignment.Leading
    GcSpreadSheet1.ColumnSplitBoxAlignment = GrapeCity.Windows.SpreadSheet.UI.SplitBoxAlignment.Trailing
    GcSpreadSheet1.Sheets(0).SetViewportHeight(0, 100)
    GcSpreadSheet1.Sheets(0).SetViewportWidth(0, 100)
    GcSpreadSheet1.Invalidate()   
    Private Sub Button1_Click(sender As System.Object, e As System.Windows.RoutedEventArgs) Handles Button1.Click
          GcSpreadSheet1.RemoveColumnViewport(0)
          GcSpreadSheet1.RemoveRowViewport(0)
          GcSpreadSheet1.Invalidate()
    End Sub
    
    See Also