Manual Validation Code is not working properly

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Hi to all

I have a DropDownList for selecting some table names. Rather than placing a RequiredFieldValidator I preferred to write if-else code like this

C#

if
{  
    DropDownList.SelectedIndex==0;
    Label1.Visible = true
    Label1.Text = " Please Select Correct Table";

}

it is working properly when i first select any table name perfectly and then if i select the option "Select Table Name(SelectdIndex==0)"

but if i select "Select Table Name" option first time it's not working . Please tell me if u know where the problem is lying.

Posted 10-Mar-12 19:00pm

Jagan911

Updated 10-Mar-12 19:14pm

ProEnggSoft

v2

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ProEnggSoft 11-Mar-12 1:15am

Edit: pre tag for C# code and var tags added - PES

1 solution

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Uday P.Singh · Answer 1 · 2012-03-10T19:53:00

Solution 1

Not sure what you are doing , where is your if(condition), you can try setting the DropDownList property AutoPostBack="true".

for further queries comment here!

hope it helps :)

Posted 10-Mar-12 19:53pm

Uday P.Singh

Comments

Jagan911 11-Mar-12 2:02am

sorry for the wrong posting here is the corrected one
I have a DropDownList for selecting some table names. Rather than placing a RequiredFieldValidator I preferred to write if-else code like this
protected void DropDownList1_SelectedIndexChanged()
{
if(DropDownList.SelectedIndex==0)
{

Label1.Visible = true
Label1.Text = " Please Select Correct Table";
}
else
{
-----------
} it is working properly when i first select any table name perfectly and then if i select the option "Select Table Name(SelectdIndex==0)"

but if i select "Select Table Name" option first time it's not working . Please tell me if u know where the problem is lying.

Uday P.Singh 11-Mar-12 3:07am

did you set the AutoPostBack="true" of Dropdownlist

Jagan911 11-Mar-12 3:10am

of course i set "AutoPostBack" property of DropDownList to "true"