problem with dropdownlist

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hi,
I have two dropdownlist in one page.if i have clicked on one value from dropdownlist1.& i want to do dropdownlist2 is invisible..plz gv me solution

Posted 24-May-12 21:14pm

Member 9027346

Updated 24-May-12 21:18pm

v3

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vangapally Naveen Kumar · Answer 1 · 2012-05-24T21:21:00

Solution 2

try like this

SQL

Protected Sub DropDownList1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles DropDownList1.SelectedIndexChanged
       If DropDownList1.SelectedItem.Text = "Hi" Then
           DropDownList2.Visible = False
       End If
   End Sub

Posted 24-May-12 21:21pm

vangapally Naveen Kumar

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Member 9027346 25-May-12 3:40am

I have tried but still there is error:can not implicitly convert type "string to bool"plz help me...

Technoses · Answer 2 · 2012-05-24T23:39:00

YOu can use Javascript

in aspx

ASP.NET

<asp:dropdownlist onchange="onchange()" id="Dropdownlist1" runat="server" xmlns:asp="#unknown">
                    </asp:dropdownlist>
<asp:dropdownlist id="Dropdownlist2" runat="server" xmlns:asp="#unknown">
                    </asp:dropdownlist>

this js should write down after your above html

JavaScript

function onchange()
{
    var dl1=document.getElementById("Dropdownlist1");
    var dl2=document.getElementById("Dropdownlist2");

    //  For Text
    if(dl1.options[dl1.selectedIndex].text=="your text")
        dl2.style.display="none";

    //  For Value
    if(dl1.value=="your value")
        dl2.style.display="none";


}

Code 89 · Answer 3 · 2012-05-24T23:48:00

Solution 4

Add ddl2.Visible = false; on  DropDownList1_SelectedIndexChanged1

Posted 24-May-12 23:48pm

Code 89