//表名变化时，更新列名下拉框
private void Table_SelectChange(object sender, SelectionChangedEventArgs e)
{
if (e.AddedItems.Count > 0)
{
SetEnabled(true, txtSysid, txtTopid, txtName);
SetEnabled(false, btnExport, btnCompute);
ClearItems(txtSysid, txtTopid, txtName, optColsPanel);
string tb = e.AddedItems[0].ToString();
List <string> colList = connDB.GetAllCol(tb);
foreach (string col in colList)
{
ComboBoxItem item = new ComboBoxItem();
item.Content = col;
txtSysid.Items.Add(item);
ComboBoxItem item2 = new ComboBoxItem();
item2.Content = col;
txtTopid.Items.Add(item2);
ComboBoxItem item3 = new ComboBoxItem();
item3.Content = col;
txtName.Items.Add(item3);
Button btn = new Button();
btn.Content = col;
btn.Margin = new Thickness(2);
btn.Padding = new Thickness(2);
btn.IsEnabled = true;
optColsPanel.Children.Add(btn);
}
}
}
