彩票走势图

只需要两部便可完成在VIBlend DataGridView for WinForms中隐藏列表中的分组列。

第一步：在CollectionChanged事件中订阅vDataGridView的GroupingColumns集合。示例代码如下

C#

this.Grid1.GroupingColumns.CollectionChanged += new EventHandler<CollectionChangedEventArgs>(GroupingColumns_CollectionChanged);  

VB .NET

AddHandler Grid1.GroupingColumns.CollectionChanged, AddressOf GroupingColumns_CollectionChanged 

第二步：更新DataGridView列在事件处理程序的可见性。

C#

void GroupingColumns_CollectionChanged(object sender, CollectionChangedEventArgs e)
{
    HierarchyItemsCollection items = Grid1.ColumnsHierarchy.Items;
    foreach (BoundField field in Grid1.GroupingColumns)
    {
        foreach (HierarchyItem item in items)
        {
            if (item.Caption == field.Text)
            {
                item.Hidden = true;
                items.Remove(item);
                break;   
            }
        }
    }
} 
  

VB .NET

 Private Sub GroupingColumns_CollectionChanged(ByVal sender As Object, ByVal e As CollectionChangedEventArgs)
Dim items As HierarchyItemsCollection = Grid1.ColumnsHierarchy.Items
For Each field As BoundField In Grid1.GroupingColumns
For Each item As HierarchyItem In items
If item.Caption = field.Text Then
item.Hidden = True
items.Remove(item)
Exit For
End If
Next item
Next field
End Sub