Question

When I tried to focus on compiler in code, I made break point on code.

if (!IsPostBack)
{
    using (SqlConnection Con = Connection.GetConnection())
    {
        if (Request.QueryString["Category_Id"] != null &&
            DDlProductFamily.SelectedIndex < 0)
        {
            SqlCommand Com = new SqlCommand("SelectAllCtageories_Front", Con);
            Com.CommandType = CommandType.StoredProcedure;
            Com.Parameters.Add(Parameter.NewInt(
                "@Category_Id", Request.QueryString["Category_Id"]));

            SqlDataAdapter DA = new SqlDataAdapter(Com);
            DA.Fill(dt);
            DataList1.DataSource = dt;
            DataList1.DataBind();
        }

But I cannot check condition although I had the value of query string.

Answer 1

You can use F10 and F11 to step through the code once your breakpoint is hit.

If you want to see values of the variables then you can hover over them or right-click and add watch or add quick watch.

If you want to check if your condition is true or false then select the whole condition right click and select one of the options mentioned above.

I don’t understand your question. But you would like Sarah Ford’s Blog.