c# - Dynamically binding a dropdown control's selection -

I have a home page, where I get the div to & lt; Asp: repeater ... / & gt; Control Now & lt; Div & gt; On click event on a button in , I am sending this page to the registration form where I have the & lt; ASP: Dropdown ... /> control.

On the event of the Page_load registration page, I am populating the dropdown from the database and DataTextField and DataValueField .

Now I type EventTypeID to the dropdown. Specifying the drop code from DataValueField and names . .DataTextField . I have also checked that in the dropdown on the rendering, the code is EventTypeID in the value field

:

  Protected Zero Page_Old (Object Sender, EventArgues E) {Event Typogologic Event Typical Labic = New Event Type Opposite (;); Int eventTypeID = Convert.ToInt32 (Request .Jquery String ["id"]); DdlEventType.DataSource = eventTypeLogic.populateEventTypeDDL (); DdlEventType.DataValueField = "EventTypeID"; DdlEventType.DataTextField = "name"; DdlEventType.DataBind (); DdlEventType.Items.Instert (0, new list item ("Choose Event Type", "0")); If (eventTypeID> 0) {ddlEventType.SelectedIndex = eventTypeID; }}  

dropdown ASPX code:

  & asp: dropdown list id = "ddlEventType" runat = "server" CssClass = "span2 form-info" />  

Home page code:

  & lt; / P & gt; & Lt; H6 & gt; & Lt; A class = "BTN BTN-custom" href = '& lt; % # "HostEvent.aspx? Id =" + Eval ("EventTypeID")%> '& Gt; & Lt; B & gt; Host Event & lt; / B & gt; & Lt; / A & gt; & Lt; / H6 & gt;  

Problem: I want the drop-down to be hand selected before hand, depending on the selection on the home page.

Update:

  Protected Zero Page_Old (Object Sender, EventArggs E) {Event Type Lologic Event Taclausic = New Event Type (Latin) ; Int eventTypeID = Convert.ToInt32 (Request .Jquery String ["id"]); String name = Event typoogic. Rolvetmon (EventTapID); DdlEventType.DataSource = eventTypeLogic.populateEventTypeDDL (); DdlEventType.DataValueField = "EventTypeID"; DdlEventType.DataTextField = "name"; DdlEventType.Items.Instert (0, new list item ("Choose Event Type", "0")); //ddlEventType.DataBind (); DdlEventType.SelectedIndex = eventTypeID; DdlEventType.DataBind (); }  

If you want to display EventName Before requesting a query with eventTypeId , get a pre-selected value in your Ddl and all the information about that event and try it out.

  / / I think that when you check the fire you get an item `event details` if (eventTypeID> 0) {ddlEventType.SelectedIndex = eventTypeID; DdlEventType.SelectedValue = EventDetails.EventTypeID.ToString (); }  

This should work!