Question

I have an asp Button and four drop down lists that are populated dynamically from a database. When clicking the button, supposed to pass the selected values from the drop down list to a SQL stored procedure. Instead the first value in each drop down list is being passed instead of the selected value. Here is the code on the aspx page:

<asp:DropDownList runat="server" ID="ddlCountry" AppendDataBoundItems="True">
</asp:DropDownList>
&nbsp;
<asp:DropDownList runat="server" ID="ddlTypeStructure" AppendDataBoundItems="True">
 </asp:DropDownList>
&nbsp;
<asp:DropDownList runat="server" ID="ddlCategory" AppendDataBoundItems="True">
</asp:DropDownList>
&nbsp;
<asp:DropDownList runat="server" ID="ddlSegment" AppendDataBoundItems="True">
</asp:DropDownList>
&nbsp;
<asp:Button runat="server" ID="btnSearhProjects" Text="Go" 
    CausesValidation="False" onclick="btnSearhProjects_Click" UseSubmitBehavior="False" />

And here is the C# code behind for the button:

protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            BindCountries();
            BindCategories();
            BindSegments();
            BindStructures();

        }



    }
public void SearchProjects()
    {
        Project project = new Project();
        string country = ddlCountry.SelectedItem.Text;
        string category = ddlCategory.SelectedItem.Text;
        string segment = ddlSegment.SelectedItem.Text;
        string structure = ddlTypeStructure.SelectedItem.Text;
        List<Project> projectList = project.GetProjects(country, category, segment, structure);
        gvProjects.DataSource = projectList;
        gvProjects.DataBind();
    }

    protected void btnSearhProjects_Click(object sender, EventArgs e)
    {
        SearchProjects();
    }

And this is how I am populating each drop down list:

public void BindCountries()
    {
        List<Country> countryList = new List<Country>();
        Country country = new Country();
        countryList = country.GetCountries();

        ddlCountry.DataTextField = "CountryName";
        ddlCountry.DataValueField = "CountryID";
        ddlCountry.DataSource = countryList;
        ddlCountry.DataBind();

    }

I have tried using ddlCountry.SelectedValue.Text and ddlCountry.SelectedItem.Value and they do not work. Any help would be greatly appreciated. Thank you.

Answer 1

I found the solution to my problem. I had an extra form tag on my master page with method="post". This was causing the page to post back to itself. Once I removed the form tag, I was able to use the drop down lists properly. Thanks.