public static IEnumerable <DataRow> GetChildDataRows(GridViewGroupRowInfo groupRow)
{
if (groupRow == null)
{
throw new ArgumentNullException("groupRow");
}
foreach (var childRow in groupRow.ChildRows)
{
if (childRow is GridViewGroupRowInfo)
{
foreach (var sub in GetChildDataRows((GridViewGroupRowInfo)childRow))
{
yield return(sub);
}
}
else
{
var dataRowView = childRow.DataBoundItem as DataRowView;
if (dataRowView != null)
{
yield return(dataRowView.Row);
}
}
}
}
public override void SetContent()
{
base.SetContent();
this.ShowSummaryCells = !this.RowInfo.Group.IsExpanded || this.RowInfo.Group.Groups.Count > 0;
GridViewGroupRowInfo rowInfo = (GridViewGroupRowInfo)this.RowInfo;
if (rowInfo.Parent is GridViewGroupRowInfo && !((GridViewGroupRowInfo)rowInfo.Parent).IsExpanded)
{
return;
}
Dictionary <string, string> values = this.GetSummaryValues();
int index = 0;
foreach (KeyValuePair <string, string> column in values)
{
SummaryCellElement element = ((SummaryCellElement)this.stack.Children[index++]);
if (this.ViewTemplate.Columns[column.Key].IsGrouped)
{
element.Visibility = Telerik.WinControls.ElementVisibility.Collapsed;
}
else
{
element.Visibility = Telerik.WinControls.ElementVisibility.Visible;
element.Text = column.Value;
}
}
}
void radGridView_ViewRowFormatting(object sender, RowFormattingEventArgs e)
{
GridViewGroupRowInfo groupRow = e.RowElement.RowInfo as GridViewGroupRowInfo;
if (groupRow != null && groupRow.Group.Key is int)
{
e.RowElement.BackColor = Color.FromArgb((int)groupRow.Group.Key);
}
}
private void Collapse(GridViewGroupRowInfo row)
{
foreach (GridViewRowInfo childRow in row.ChildRows)
{
GridViewGroupRowInfo groupRow = childRow as GridViewGroupRowInfo;
if (groupRow != null)
{
groupRow.IsExpanded = false;
Collapse(groupRow);
}
}
}
private void Toggle(GridViewGroupRowInfo groupRow, bool state)
{
groupRow.Tag = state;
foreach (GridViewRowInfo row in groupRow.ChildRows)
{
GridViewGroupRowInfo g = row as GridViewGroupRowInfo;
if (g != null)
{
Toggle(g, state);
}
row.Cells["Discontinued"].Value = state;
}
}
protected override void SetCurrent()
{
GridViewGroupRowInfo hierarchyRow = this.HierarchyRow as GridViewGroupRowInfo;
if (hierarchyRow == null)
base.SetCurrent();
else if (this.Index < hierarchyRow.TopSummaryRows.Count)
this.Current = (GridViewRowInfo) hierarchyRow.TopSummaryRows[this.Index];
else if (this.Index < hierarchyRow.TopSummaryRows.Count + hierarchyRow.ChildRows.Count)
{
this.Current = hierarchyRow.ChildRows[this.Index - hierarchyRow.TopSummaryRows.Count];
}
else
{
if (this.Index >= this.RowsCount)
return;
this.Current = (GridViewRowInfo) hierarchyRow.BottomSummaryRows[this.Index - (hierarchyRow.TopSummaryRows.Count + hierarchyRow.ChildRows.Count)];
}
}
private void radGridView1_CellValueChanged(object sender, GridViewCellEventArgs e)
{
if (e.Column.Name == "Discontinued")
{
GridViewGroupRowInfo parentGroup = e.Row.Parent as GridViewGroupRowInfo;
if (parentGroup != null)
{
bool atLeastOneOff = false;
foreach (GridViewRowInfo row in parentGroup.ChildRows)
{
if ((bool)row.Cells["Discontinued"].Value == false)
{
atLeastOneOff = true;
break;
}
}
parentGroup.Tag = !atLeastOneOff;
}
}
}
private void checkBoxElement_CheckStateChanged(object sender, EventArgs e)
{
//update child rows
GridViewGroupRowInfo group = this.RowInfo as GridViewGroupRowInfo;
group.Tag = checkBoxElement.Checked;
this.GridViewElement.GridControl.BeginUpdate();
int scrollValue = this.GridControl.TableElement.VScrollBar.Value;
foreach (GridViewRowInfo row in this.RowInfo.ChildRows)
{
GridViewGroupRowInfo groupRow = row as GridViewGroupRowInfo;
if (groupRow != null)
{
Toggle(groupRow, checkBoxElement.Checked);
}
row.Cells["Discontinued"].Value = checkBoxElement.Checked;
}
this.GridViewElement.GridControl.EndUpdate();
this.GridViewElement.GridControl.TableElement.VScrollBar.Value = scrollValue;
}
public GroupRowTraverser(GridViewGroupRowInfo hierarchyRow)
: base((GridViewRowInfo) hierarchyRow)
{
}
