void initProGrp() { var result = (from item in dx.tbl_ProGroups orderby item.Name select item); cmbGridProGrp.DataSource = result; foreach (var item in result) { cmbGridProGrp.DisplayMember = "Name"; cmbGridProGrp.ValueMember = "ID"; } } void initProduct() { try { var Products = (from item in dx.tbl_Products where item.GroupID.Equals(selectedValue from cmbGridProGrp) orderby item.Name select item); foreach (var item in Products) { cmbGridProduct.DataSource = Products; cmbGridProduct.DisplayMember = "Name"; cmbGridProduct.ValueMember = "ID"; } } catch { return; } }
var
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