Drop down list selected value error

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I have one drop down list in update panel but when I assign any value to ddl.selectedValue it is not selecting that value

for eg.

C#

ddl.selectedValue=2

then it remains null

i had check it using break point it is not changing to 2.

please help me......

Posted 5-Jul-13 3:05am

jagdish123061

Updated 5-Jul-13 4:06am

Syed Salman Raza Zaidi

v2

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Comments

Nirav Prabtani 5-Jul-13 9:19am

can you paste your code here???

Prasad Khandekar 5-Jul-13 9:24am

Hello Jagdish,

Please share your code snippet. On the basic of supplied I can say that the selectedValue is a string property and hence try assigning a string value. Better yet is to use code something like one shown below.

ListItem dlItem = ddl.Items.FindByValue("2");
dlItem.Selected = (dlItem != null);

Regards,

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 5-Jul-13 10:12am

Please show the code of function where you set the value.

Rakesh6906 5-Jul-13 11:30am

Please share the code..

3 solutions

Solution 1

hay jagdish,

Change your dropdownlist properties AutoPostBack : True
its work..

Posted 5-Jul-13 6:10am

Mahesh_Bhosale

Solution 2

I found that it was databinding error. data was not bound to ddl therefore selected value was empty.

thanx to u all for reply...

Posted 5-Jul-13 20:45pm

jagdish123061

Comments

Sergey Alexandrovich Kryukov 12-Mar-14 12:07pm

Not an answer. Such posts are considered as abuse. Use comments instead.
—SA

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KuttiSankar · Accepted Answer · 2013-07-06T21:01:00

I think you can give the property in design page itself.

XML

<asp:DropDownList ID="DropDownListname" runat="server">
                    <asp:ListItem Value="0">first value</asp:ListItem>
                    <asp:ListItem Value="2">second value</asp:ListItem>
                    <asp:ListItem Value="3">third value</asp:ListItem>
                </asp:DropDownList>

Or try

dropdownlist.selecteditem='That String'