public bool ExpandRow(int rowIndex)
{
if (this.childViewInfos.ContainsKey(rowIndex) && this.childViewInfos[rowIndex].IsExpanded)
{
return(false);
}
VirtualGridViewInfo childViewInfo = this.GetChildViewInfo(rowIndex, true);
VirtualGridRowExpandingEventArgs args = new VirtualGridRowExpandingEventArgs(rowIndex, childViewInfo, this);
this.GridElement.OnRowExpanding(args);
if (args.Cancel)
{
return(false);
}
if (!this.childViewInfos.ContainsKey(rowIndex))
{
this.childViewInfos.Add(rowIndex, new VirtualGridViewInfo(this, rowIndex));
}
this.childViewInfos[rowIndex].IsExpanded = true;
int size = this.GridElement.UseScrollbarsInHierarchy ? this.childViewInfos[rowIndex].ExpandedHeight : this.childViewInfos[rowIndex].GetTotalRowHeight();
this.rowsViewState.SetExpandedSize(rowIndex, size);
this.childViewInfos[rowIndex].ExpandedHeight = size;
this.OnNotifyPropertyChanged("ExpandedRows[]");
this.GridElement.OnRowExpanded(new VirtualGridRowExpandedEventArgs(rowIndex, childViewInfo, this));
return(true);
}
public bool CollapseRow(int rowIndex)
{
VirtualGridViewInfo childViewInfo = this.GetChildViewInfo(rowIndex, true);
VirtualGridRowExpandingEventArgs args = new VirtualGridRowExpandingEventArgs(rowIndex, childViewInfo, this);
this.GridElement.OnRowCollapsing(args);
if (args.Cancel || !this.childViewInfos.ContainsKey(rowIndex) || !this.childViewInfos[rowIndex].IsExpanded)
{
return(false);
}
this.childViewInfos[rowIndex].IsExpanded = false;
this.rowsViewState.ResetExpandedSize(rowIndex);
this.OnNotifyPropertyChanged("ExpandedRows[]");
this.GridElement.OnRowCollapsed(new VirtualGridRowExpandedEventArgs(rowIndex, childViewInfo, this));
return(true);
}
private void radVirtualGrid1_RowExpanding(object sender, Telerik.WinControls.UI.VirtualGridRowExpandingEventArgs e)
{
if (viewInfoToExpand == null)
{
e.Cancel = true;
e.ViewInfo.StartRowWaiting(e.RowIndex);
viewInfoToExpand = e.ViewInfo;
rowToExpand = e.RowIndex;
expandTimer.Start();
}
else
{
if (rowToExpand != e.RowIndex)
{
e.Cancel = true;
}
else
{
if (e.ChildViewInfo.HierarchyLevel == 2)
{
e.ChildViewInfo.ColumnCount = DetailsWorkerInProjects.FieldNames.Length;
e.ChildViewInfo.RowCount = treeTables[e.ViewInfo.ParentRowIndex].DetailsWorkerInProjects.Count;
}
//
else if (e.ChildViewInfo.HierarchyLevel == 1)
{
e.ChildViewInfo.ColumnCount = 4;
e.ChildViewInfo.RowCount = 3;
}
else if (e.ChildViewInfo.HierarchyLevel == 3)
{
e.ChildViewInfo.ColumnCount = 2;
e.ChildViewInfo.RowCount = 3;
}
else
{
e.ChildViewInfo.ColumnCount = 0;
e.ChildViewInfo.RowCount = 0;
}
}
}
}