how to put the selected value of drop down to textbox

Question

I need to select the value of dropdownlist and put it on textbox I tried theses but not working $ ( '# ' ). change ( function () { $ ( '# ' ). val ( $ ( this ). val ()); }); protected void DDL_SelectedIndexChanged ( object sender , EventArgs e ) { var selectedValue = (( DropDownList ) sender ). SelectedValue ; TextBox1 . Text = selectedValue ; }

Praveen Sreeram · Answer

Hi joma, Could you please confirm the following two questions? Are you having both the codes that you have mentioned in your page? is the AutoPostBack property of the dropdown is set to true? If your answer is yes for both of my Questions above, then the client side script will not work. If your answer to my Question#2 is yes then it should work until unless you have some other code in your Page_Load event. Could you please let us know if you have any code in your Page_Load Event? Thanks, Prawin

Joma Alrzini · Answer

Thanks Praveen I tried the second one with selectidexexchanded and i have autopostback properyty as well but it is not working About the first one with JQuery I could not try it becuase it is not compete please help DataTextField="VideoName" DataValueField="MaId" AutoPostBack="true" Width="130px" Height="25px" AppendDataBoundItems="true" OnSelectedIndexChanged="selectForTextBox"> Select Lecture * runat="server" ValidationGroup="click2" InitialValue="Select Lecture" SetFocusOnError="true" /> " SelectCommand="SELECT [MaId], [VideoName] FROM [Material] "> Code behind protected void selectForTextBox(object sender, EventArgs e) { var selectvalue = ((DropDownList)sender).SelectedValue; TextBox1.Text = selectvalue; } Also I tried this javascript code function select() { var textbox = document.getElementById(' '); var parLab = document.getElementById(' ').option[document.getElementById(' ').selectedIndex].text; if (parlab != 'Select Lecture') { textbox.value = parlab; } else { textbox.value = ''; } } I appreciate your help very much

Dharmesh Singh · Answer

protected void DDL_SelectedIndexChanged( object sender,EventArgse){ varselectedValue=((DropDownList)sender).SelectedValue; TextBox1.Text=selectedValue.ToString();}