How to filter the dropdown values? [Resolved]

Posted by Annagoldtech under VB.NET on 4/25/2013 | Points: 10 | Views : 2561 | Status : [Member] | Replies : 3

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Hi,

I have a dropdown called Category eg: say values cat 1,cat 2,cat3. I m calling these values through Stored Procedures.

That stored procedure is used in other modules also.

My requirement is: in my particular module, the dropdown values "Cat 3" should not show.
I need to filter this value at my vb.net code behind.
How to resolve this issue?

Thanks.

[Resolved]

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Posted by: Santhi on: 4/26/2013 [Member] Starter | Points: 50

0	Hi Try this: For example Ui Design should be <form id="form1" runat="server"> <div> <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" /> <asp:DropDownList ID="DropDownList1" runat="server"></asp:DropDownList> </div> </form> Code behind: CS public partial class WebForm1 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) {if(!IsPostBack) { LoadDropdown(); } } private void LoadDropdown() { ListItem ab = new ListItem(); ab.Text = "hi"; ab.Value = "1"; DropDownList1.Items.Add(ab); ab = new ListItem(); ab.Text = "hello"; ab.Value = "2"; DropDownList1.Items.Add(ab); } protected void Button1_Click(object sender, EventArgs e) { DropDownList1.Items.Remove(DropDownList1.Items.FindByText("hello")); } } Thanks & Regards, Santhi .V Annagoldtech, if this helps please login to Mark As Answer. \| Alert Moderator

Hi

Try this:
For example
Ui Design should be

 <form id="form1" runat="server">

    <div>

        <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />

    <asp:DropDownList ID="DropDownList1" runat="server"></asp:DropDownList>

    </div>

        

    </form>

Code behind: CS

 public partial class WebForm1 : System.Web.UI.Page

    {

        protected void Page_Load(object sender, EventArgs e)

        {if(!IsPostBack)

        {

            LoadDropdown();

        }

        }



        private void LoadDropdown()

        {

            ListItem ab = new ListItem();

            ab.Text = "hi";

            ab.Value = "1";

            DropDownList1.Items.Add(ab);

            ab = new ListItem();

            ab.Text = "hello";

            ab.Value = "2";

            DropDownList1.Items.Add(ab);



        }



        protected void Button1_Click(object sender, EventArgs e)

        {



            DropDownList1.Items.Remove(DropDownList1.Items.FindByText("hello"));





        }

    }

Thanks & Regards,
Santhi .V

Annagoldtech, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: Santhi on: 4/26/2013 [Member] Starter | Points: 50

0	Hi Syntax to remove the listitem from the dropdownlist : DropDownList1.Items.Remove(DropDownList1.Items.FindByText("hello")); DropDownList1.Items.Remove(DropDownList1.Items.FindByText("hello")); DropDownList1.Items.Remove(DropDownList1.Items.FindByValue("3")) ; Thanks & Regards, Santhi .V Annagoldtech, if this helps please login to Mark As Answer. \| Alert Moderator

Hi

Syntax to remove the listitem from the dropdownlist :

 DropDownList1.Items.Remove(DropDownList1.Items.FindByText("hello")); 

  DropDownList1.Items.Remove(DropDownList1.Items.FindByText("hello"));

            DropDownList1.Items.Remove(DropDownList1.Items.FindByValue("3")) ;

Thanks & Regards,
Santhi .V

Annagoldtech, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: Annagoldtech on: 4/26/2013 [Member] Starter | Points: 25

0	Thanks a lot. It works. Annagoldtech, if this helps please login to Mark As Answer. \| Alert Moderator

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