//数据库名变化时，更新表名下拉框
private void DB_SelectChange(object sender, SelectionChangedEventArgs e)
{
if (e.AddedItems.Count > 0)
{
SetEnabled(true, txtTable);
SetEnabled(false, btnExport, btnCompute);
ClearItems(txtTable, txtSysid, txtTopid, txtName, optColsPanel);
string db = e.AddedItems[0].ToString();
List <string> tabList = connDB.GetAllTab(db);
foreach (string tab in tabList)
{
txtTable.Items.Add(tab);
}
}
}
