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ComboBox and SelectedItem

  1. #1
    Apr 01, 2015, 5:41 PM

    ComboBox and SelectedItem

    Hi

    I have some 1.7 code that don't run good in 2.5

    I have a ComoBox that I set SelectedItem in PageLoad like this:

    
if (!X.IsAjaxRequest)
{
    listItem.ID = 2;
    listIte.Name  = "Hello";

  cb.SelectedItems.Add(listItem);
  cb.UpdateSelectedItems();


}

    then I run a function


    <Listeners><DocumentReady Handler="App.direct.method();" /></Listeners>

    [DirectMethod]
   public void method()
   {
       string id = cb.SelectedItem; 
   }

    Now id contains "1" instead of just 1, with the extra "".

    This only occur if I call method() from DocumentReady.

    Not if I call metod from a button that I click on, then id contains just 1 as it did in the version 1.7


    Why is that? And how do I get rid of the extra ""


    Best regards
    Mikael
  2. #2
    Apr 02, 2015, 7:53 AM
    Here is a full code example, I also wonder why the ComboBox becomes multiselect? I have not set multiselect="true". I noticed that If I remove the code "cbProjekt.SelectedItems.Add(listProjekt[1]);" the ComoBox is not multiselect any more. But I need to set SelectedItem from code behind in PageLoad.

    <%@ Page Language="C#" %>


<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>


<script runat="server">
    
    public class Combo
    {
        public string ID { get; set; }
        public string Name { get; set; }
        public bool Disabled { get; set; }
    }
    
    protected void Page_Load(object sender, EventArgs e)
    {
        
        List<Combo> listProjekt = new List<Combo>();
        listProjekt.Add(new Combo() { ID = "1", Name = "Value 1" });
        listProjekt.Add(new Combo() { ID = "2", Name = "Value 2" });
        listProjekt.Add(new Combo() { ID = "3", Name = "Value 3" });
        storeProjekt.DataSource = listProjekt;
        storeProjekt.DataBind();


        cbProjekt.SelectedItems.Add(listProjekt[1]);
        cbProjekt.UpdateSelectedItems();


    }


    [DirectMethod]
    public void method()
    {
        if (cbProjekt.SelectedItem.Value != null)
            X.MessageBox.Alert("", cbProjekt.SelectedItem.Value.ToString()).Show();
    }
</script>


<!DOCTYPE html>


<html>
<head runat="server">
    <title>Combo Boxes - Ext.NET Examples</title>


</head>
<body>
    <form runat="server">
        <ext:ResourceManager runat="server">
            <Listeners>
                <DocumentReady Handler="App.direct.method();" />
            </Listeners>
        </ext:ResourceManager>


        <ext:Store ID="storeProjekt" runat="server">
            <Model>
                <ext:Model runat="server" IDProperty="ID">
                    <Fields>
                        <ext:ModelField Name="ID" />
                        <ext:ModelField Name="Name" />
                        <ext:ModelField Name="Disabled" />
                    </Fields>
                </ext:Model>
            </Model>
        </ext:Store>


        <ext:ComboBox
            ID="cbProjekt"
            runat="server"
            DisplayField="Name"
            ValueField="ID"
            StoreID="storeProjekt"
            QueryMode="Local"
            TypeAhead="true">
            <Listeners>
                <Select Handler="App.direct.method();" />
                                                
            </Listeners>            
        </ext:ComboBox>


    </form>
</body>
</html>
  3. #3
    Apr 07, 2015, 12:52 PM
    Hi again
    I would really appreciate an answer on this, because Im not able to continue my upgrade to 2.5.

    Thank you.

    Best regards
    Mikael

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