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private void tv_BillChapter_AfterSelect(object sender, TreeViewEventArgs e)
{
if (e.Node.Tag == null) return;
string zjid = e.Node.Tag.ToString();
if (this.dataTransaction.GetDataTable("Bill") == null)
{
this.billBinding.DataSource = this.dataTransaction.GetDataTable("select * from Bill", "Bill", DataBaseType.BillDB);
}
billBinding.Filter = "BillSectionID = " + zjid;
this.grid_Bill.DataSource = billBinding;
}