Hi
What i am facing that my code is getting value from dropdownlist which it shouldn't be proceed in the code, for example the Care brand dropdownlist should show: Select Car in the first and in same time shouldn't be
proceed with the code in case if the user didn't choose another value. Please i would like from you if you can see my screen record it may explain more of what i am looking for
https://www.youtube.com/watch?v=GvMHp-c251s&feature=youtu.be
and here is my filtering code
protected void Sortcarbtn_Click(object sender, EventArgs e)
{
using (SqlConnection carcon = new SqlConnection(ConfigurationManager.ConnectionStrings["BeravaConnectionString"].ConnectionString))
if (Session["location"] != null)
{
string ...
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