Hi,
There is two dropdown list on page. One is for State and second one is for City related to that sate only.
I have addded the Name of state in first dropdownlist and would like to write programming in such a way so
that when I select the name of state the city related to that state adds automatically in second dropdownlist.

I tried many code but all are giving error.
like

protected void State_DropDownList_SelectedIndexChanged(object sender, EventArgs e)

{
if (State_DropDownList.SelectedItem.Text == "Bihar")
{
City_DropDownList.Items.Add("Patna");
City_DropDownList.Items.Add("Gaya");
City_DropDownList.Items.Add("Aurangabad");
}
}




protected void State_DropDownList_TextChanged(object sender, EventArgs e)
{

if (State_DropDownList.SelectedItem.Text == "Bihar")
{
City_DropDownList.Items.Add("Patna");
City_DropDownList.Items.Add("Gaya");
City_DropDownList.Items.Add("Aurangabad");
}
Post back is enable for both Dropdown list

but these codes are not working please help me.
I do not want to use database for that.

Hi there,

Since this is not related to my book directly, please post this in the General ASP.NET category here: http://p2p.wrox.com/asp-net-4-general-discussion-561/

If you post there, be sure to post the full code for the page as currently it's hard to see why this wouldn't work.

Cheers,

Imar

__________________
Imar Spaanjaars
http://Imar.Spaanjaars.Com
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Author of Beginning ASP.NET 4.5 : in C# and VB, Beginning ASP.NET Web Pages with WebMatrix
and Beginning ASP.NET 4 : in C# and VB.
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