Multiple DropDown Menu Problem

Question

Hi Everyone I was wondering if someone can help me. I have 3 DropDown menus lets say Menu A Menu B and Menu C. When I make a selection in Menu A It fills Menu B with data. And when I make a selection with Menu B it fills Menu C with data. But My problem is when I try to select something in Menu B the OnSelectionChanged for Menu A also fires on the postback when the OnSelectionChanged for Menu B should be the only one firing and I can't figure out why. Any suggestions? I hope I explained this clearly. Thanks in advance! Jay

Jay · Answer

Hi Here is some sample code..... This code populates the ddCats dropdown when an option is selected in ddDepts protected void ddDepts_SelectedIndexChanged( object sender EventArgs e) { string mainDepartment = Request.QueryString[ Department ]; string deptID = ddDepts.SelectedValue; string catID catName; ddSubCats.Items.Clear(); if (mainDepartment == ThisDepartment ) { DataTable table = CatalogAccess .GetCategoriesInDepartment(deptID); for ( int i = 0; i { catID = table.Rows[i][ CategoryID ].ToString(); catName = table.Rows[i][ Name ].ToString(); ddCats.Items.Add( new ListItem (catName catID)); } } } This code populates ddSubCats dropdown when an option is selected in ddCats protected void ddCats_SelectedIndexChanged( object sender EventArgs e) { string mainDept = Request.QueryString[ Department ]; string productID = Request.QueryString[ ProductID ]; string deptID = ddDepts.SelectedValue; string catID = ddCats.SelectedValue; string catName = ddCats.SelectedItem.ToString(); string subCatID subCatName; lblSubCats.Text =  ; ddSubCats.Items.Clear(); DataTable table; if (mainDept == ThisDepartment ) { table = CatalogAccess .GetSubCategoriesInCategories(catID deptID); for ( int i = 0; i { subCatID = table.Rows[i][ SubCategoryID ].ToString(); subCatName = table.Rows[i][ Name ].ToString(); ddSubCats.Items.Add( new ListItem (subCatName subCatID)); } } } Now the main problem I have is when I make a selection in ddCats firing the ddCats_SelectedIndexChanged the ddDepts_SelectedIndexChanged also fires there for not not populating the ddSubCats correctly because the ddCats resets. Is there a way when I select something from ddCats the ddDepts_SelectedIndexChanged doesn't fire? Thanks Jay

Jan Montano · Answer

Could you post some code particular with the menu? Thanks.