which may be why collapseAll doesn't work.
i give the command collapseAll after filling the grid but all subgrids are still visible.
this.dgvOrder.Templates.Add(dgvOperationTemplate);
dgvOperationTemplate.DataSource = Sql.Dashboard_listOperationHierarchy();
// layout
dgvOperationTemplate.ReadOnly = true;
dgvOperationTemplate.ShowRowHeaderColumn = false;
//templateOperation.AutoScroll = true;
dgvOperationTemplate.MasterTemplate.AutoGenerateColumns = true;
dgvOperationTemplate.MasterTemplate.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.None;
dgvOperationTemplate.BestFitColumns(BestFitColumnMode.AllCells);
GridViewRelation reletionOrderOperation = new GridViewRelation(dgvOrder.MasterTemplate, dgvOperationTemplate) { RelationName = "OrderOperation" };
reletionOrderOperation.ParentColumnNames.Add(ColumnTitle.GridOrder.WNNr);
reletionOrderOperation.ChildColumnNames.Add(ColumnTitle.GridOperation.WNNr);
this.dgvOrder.Relations.Add(reletionOrderOperation);
dgvOperationTemplate.CollapseAll();
dgvOperationTemplate.CollapseAllGroups();
andré
1 Answer, 1 is accepted
The CollapseAll methods should be called after the grid layout is loaded. For example, you can use the Load event of the form, or you can force the layout with the following method:
radGridView1.LoadElementTree();I hope this will be useful. Let me know if you have additional questions.
Regards,
Dimitar
Progress Telerik