Problem in handling SelectedIndexChanged event of a dynamically created drop down

[ridda786]

I have created a web user control with a drop down for "Main Categories" in it and a place holder. In the page load, i am populating the main categories drop down.protected void Page_Load(object sender, EventArgs e) { if(!IsPostBack) populateCategoryField(); } On the selectedindexchanged event of this drop down, i have created another drop down for "Sub-Categories" dynamically and added it in the place holder.I have assigned the SelectedIndexChanged event for sub categories drop down like this, DropDownList ddlSubCategory = new DropDownList(); ddlSubCategory.AutoPostBack = true; ddlSubCategory.SelectedIndexChanged += new EventHandler(this.subCategories_SelectedIndexChanged); plhCategories.Controls.Add(ddlSubCategory); and in this method, another sub categories drop down is created. Now when i change the selection of sub category, it is supposed to create another sub-sub-category drop down but nothing happens. Plz anyone tell me y isnt it working?

[Christian Graus]

Dynamically created controls need to be created BEFORE page load, in order that they are in existence when the viewstate is populated ( just before page load ). Otherwise, their state is not restored, nor will their events fire.

Christian Graus - Microsoft MVP - C++ "I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )