InvalidateCell(Int32,Int32) Method

Invalidates the cell with the specified row and cell indexes, forcing it to repaint.

Syntax

Visual Basic (Declaration)
Visual Basic (Usage)
C#

Public Overloads Sub InvalidateCell( _
   ByVal rowIndex As Integer, _
   ByVal cellIndex As Integer _
)

Dim instance As GcMultiRow
Dim rowIndex As Integer
Dim cellIndex As Integer
 
instance.InvalidateCell(rowIndex, cellIndex)

public void InvalidateCell( 
   int rowIndex,
   int cellIndex
)

Parameters

rowIndex: The cell row index to invalidate.
cellIndex: The cell index of the cell to invalidate.

Exceptions

Exception	Description
System.ArgumentOutOfRangeException	The rowIndex is less than 0 or greater than the number of Rows minus 1. -or- The cellIndex is less than 0 or greater than the number of Cells in the Row minus 1.

Exception

Description

System.ArgumentOutOfRangeException

The rowIndex is less than 0 or greater than the number of Rows minus 1.

-or-

The cellIndex is less than 0 or greater than the number of Cells in the Row minus 1.

Remarks

This method is useful to force a cell repaint in conditions that would not normally cause a cell to repaint. For example, you can use this method with a custom cell type that changes its appearance as a result of external events.

Example

This example uses the InvalidateCell method.

private void Form1_Load(object sender, EventArgs e)
        {
            GrapeCity.Win.MultiRow.TextBoxCell text1 = new GrapeCity.Win.MultiRow.TextBoxCell();
            GrapeCity.Win.MultiRow.TextBoxCell text2 = new GrapeCity.Win.MultiRow.TextBoxCell();
            text1.Name = "text1";
            text2.Name = "text2";
            text2.Style.Format = "c";
            GrapeCity.Win.MultiRow.Template template1 = GrapeCity.Win.MultiRow.Template.CreateGridTemplate(new GrapeCity.Win.MultiRow.Cell[] { text1, text2 }, 160, GrapeCity.Win.MultiRow.AutoGenerateGridTemplateStyles.ColumnHeader | GrapeCity.Win.MultiRow.AutoGenerateGridTemplateStyles.RowHeaderAutoNumber);
            template1.ColumnHeaders[0].Cells[0].Value = "Column1";
            template1.ColumnHeaders[0].Cells[1].Value = "Column2";
            gcMultiRow1.Template = template1;
            gcMultiRow1.RowCount = 3;
            gcMultiRow1[1, 1].Value = 5;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //gcMultiRow1.InvalidateCell(gcMultiRow1[1, 1]);
            //gcMultiRow1.InvalidateCell(0, 0);
            gcMultiRow1.InvalidateCell(1, "text2");
        }

VB.NET

Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Dim text1 As New GrapeCity.Win.MultiRow.TextBoxCell()
        Dim text2 As New GrapeCity.Win.MultiRow.TextBoxCell()
        text1.Name = "text1"
        text2.Name = "text2"
        text2.Style.Format = "c"
        Dim template1 As GrapeCity.Win.MultiRow.Template = GrapeCity.Win.MultiRow.Template.CreateGridTemplate(New GrapeCity.Win.MultiRow.Cell() {text1, text2}, 160, GrapeCity.Win.MultiRow.AutoGenerateGridTemplateStyles.ColumnHeader Or GrapeCity.Win.MultiRow.AutoGenerateGridTemplateStyles.RowHeaderAutoNumber)
        template1.ColumnHeaders(0).Cells(0).Value = "Column1"
        template1.ColumnHeaders(0).Cells(1).Value = "Column2"
        GcMultiRow1.Template = template1
        GcMultiRow1.RowCount = 3
        GcMultiRow1(1, 1).Value = 5
End Sub

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        'GcMultiRow1.InvalidateCell(GcMultiRow1(1, 1))
        'GcMultiRow1.InvalidateCell(0, 0)
        GcMultiRow1.InvalidateCell(1, "text2")
End Sub

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

GcMultiRow Class
GcMultiRow Members
Overload List