How to take selected value of dropdownlist in web method using cascading dropdownlist
-
Hi All, I am using C# asp.net 2.0 and ajax1.0. I am trying to fill dropdownlist using ajax cascading toolkit but I am not able to populate the dropdownlist. My question is how do I take input value of parent dropdownlist in web service the fill the data that is in my senario I have subprod parent (fill on page load) and then Prod fill on subprod selection. The web service method I used is
public CascadingDropDownNameValue[] GetProd(string knownCategoryValues, string category) { StringDictionary kv = CascadingDropDown.ParseKnownCategoryValuesString(knownCategoryValues); string subgrp = null ; // if (!kv.ContainsKey("PGM_GRP_CODE") || !Int32.TryParse(kv["PGM_GRP_CODE"], out subgrp)) if (!kv.ContainsKey("PGM_GRP_CODE") ) { return null; } DsprdTableAdapters.SPGETPRODUCT_GIVENSUBTableAdapter prd = new DsprdTableAdapters.SPGETPRODUCT_GIVENSUBTableAdapter(); Dsprd.SPGETPRODUCT_GIVENSUBDataTable prdgrp = prd.GetProd(subgrp); List<CascadingDropDownNameValue> values = new List<CascadingDropDownNameValue>(); foreach (DataRow dr in prdgrp) { values.Add(new CascadingDropDownNameValue((string)dr["PM_PRD_NAME"], dr["PM_PRD_CODE"].ToString())); } return values.ToArray(); } and cascading toolkit I definded as <ajaxToolkit:CascadingDropDown ID="cddPROD" runat="server" TargetControlID="Ddlproduct" ParentControlID="Ddlsubdiv" Category="Prod" PromptText="Choose a Product...." LoadingText="Please wait ..." ServicePath="../Prod.asmx" ServiceMethod="GetProd" />Pleases Suggestregards imran khan