private void LabelDragDrop(object sender, DragEventArgs e)
{
Label label = sender as Label;
label.BorderStyle = BorderStyle.Fixed3D;
DragItem item = e.Data.GetData(typeof(DragItem)) as DragItem;
MyProductRow row = item.row;
if (label.Tag == row)
{
return;
}
label.Text = item.ToString();
label.BackColor = Color.SeaShell;
label.Tag = row;
m_Modified = true;
if (item.label != null)
{
item.label.Text = "";
item.label.BackColor = Color.SeaShell;
item.label.Tag = null;
}
if (row == null)
{
return;
}
// Check duplicate
int code = row.Code;
Label[,] currentFoodTable = tabControl1.SelectedTab.Tag as Label[, ]; // FoodTable放到TabPage.Tag去
foreach (Label l in currentFoodTable)
{
var ro = l.Tag as MyProductRow; // Label[,]內的label.Tag放著ProductRow
if (ro == null)
{
continue;
}
if (l == label)
{
continue;
}
if (ro.Code == code)
{
l.Text = "";
l.BackColor = Color.SeaShell;
l.Tag = null;
}
}
}
private void LabelDragDrop(object sender, DragEventArgs e)
{
Label label = sender as Label;
label.BorderStyle = BorderStyle.None;
DragItem item = e.Data.GetData(typeof(DragItem)) as DragItem;
BasicDataSet.ProductRow row = item.row;
if (label.Tag == row)
{
return;
}
label.Text = item.ToString();
label.BackColor = Color.SeaShell;
label.Tag = row;
m_Modified = true;
if (item.label != null)
{
item.label.Text = "";
item.label.BackColor = Color.SeaShell;
item.label.Tag = null;
}
if (row == null)
{
return;
}
// Check duplicate
int code = row.Code;
foreach (Label l in m_FoodName)
{
BasicDataSet.ProductRow ro = l.Tag as BasicDataSet.ProductRow;
if (ro == null)
{
continue;
}
if (l == label)
{
continue;
}
if (ro.Code == code)
{
l.Text = "";
l.BackColor = Color.SeaShell;
l.Tag = null;
}
}
}