private void btnQuery_Click(object sender, System.EventArgs e)
{
Hashtable htapp = (Hashtable)Application["appconf"];
string strcons = (string)htapp["cons"];
msb1 = new MaterialSBusi(strcons);
DataTable dt = msb1.GetMaterialsBySelect(this.txtQueryMaterialCode.Text.Trim(), this.txtQueryMaterialName.Text.Trim());
this.DataGrid1.DataSource = dt;
this.DataGrid1.DataBind();
}