private void GroupedColumns_Changed(object sender, Syncfusion.Collections.ListPropertyChangedEventArgs e)
{
if (this.gridGroupingControl1.TableDescriptor.GroupedColumns.Count >= 1)
{
foreach (Element el in this.gridGroupingControl1.Table.DisplayElements)
{
if (!(el is GridRecordRow))
{
int row = this.gridGroupingControl1.Table.NestedDisplayElements.IndexOf(el);
if (this.gridGroupingControl1.Table.NestedDisplayElements[row].IsCaption())
{
GridCaptionRow crow = (GridCaptionRow)el;
Group gp = crow.ParentGroup;
if (gp.IsExpanded)
{
crow.Appearance.GroupCaptionPlusMinusCell.CellValue = Image.FromFile(Syncfusion.Windows.Forms.WinFormsUtils.FindFile("res", "minus.png"));
}
else
{
crow.Appearance.GroupCaptionPlusMinusCell.CellValue = Image.FromFile(Syncfusion.Windows.Forms.WinFormsUtils.FindFile("res", "plus.png"));
}
}
}
}
}
}
private void gridGroupingControl1_TableControlCellClick(object sender, GridTableControlCellClickEventArgs e)
{
if (e.Inner.MouseEventArgs.Button == MouseButtons.Left)
{
if (e.Inner.RowIndex > 1)
{
GridTableCellStyleInfo style = e.TableControl.GetTableViewStyleInfo(e.Inner.RowIndex, e.Inner.ColIndex);
if (style.TableCellIdentity.TableCellType == GridTableCellType.GroupCaptionPlusMinusCell)
{
GridCaptionRow curGrp = e.TableControl.Table.NestedDisplayElements[e.Inner.RowIndex] as GridCaptionRow;
curGrp.ParentGroup.IsExpanded = !curGrp.ParentGroup.IsExpanded;
}
}
}
}
private void gridGroupingControl1_GroupExpanded(object sender, GroupEventArgs e)
{
GridCaptionRow gcr = (GridCaptionRow)e.Group.Caption.CaptionRows[0];
gcr.Appearance.GroupCaptionPlusMinusCell.CellValue = Image.FromFile(Syncfusion.Windows.Forms.WinFormsUtils.FindFile("res", "minus.png"));
}