所以我有一个objectlistview(实际上是一个treelistview)。我希望能够将一个项目从这里拖到一个富文本框中,并让它插入被拖项目的属性(在这种情况下Default_Heirarchy_ID
)
TreeListView 的对象模型是一个List<T>
名为SpecItem
.
这是我到目前为止所拥有的:
public frmAutospecEditor(SpecItem siThis_, List<SpecItem> lstStock_)
{
InitializeComponent();
txtFormula.DragEnter += new DragEventHandler(txtFormula_DragEnter);
txtFormula.DragDrop += new DragEventHandler(txtFormula_DragDrop);
...
}
void txtFormula_DragEnter(object sender, DragEventArgs e)
{
e.Effect = DragDropEffects.Copy;
}
private void tlvSpecItem_ItemDrag(object sender, ItemDragEventArgs e)
{
int intID = ((SpecItem)tlvSpecItem.GetItem(tlvSpecItem.SelectedIndex).RowObject).Default_Heirarchy_ID ??0;
DoDragDrop(intID, DragDropEffects.Copy);
}
private void txtFormula_DragDrop(object sender, System.Windows.Forms.DragEventArgs e)
{
object objID = e.Data.GetData(typeof(String));
//this is where it goes wrong - no matter what I try to do with this, it
//always returns either null, or the text displayed for that item in the TreeListView,
//NOT the ID as I want it to.
string strID = (string)objID;
txtFormula.Text = strID;
}
我哪里错了?
干杯