What's New?

[CLOSED] How to Populate Combobox on Focus?

  1. #1
    Jul 30, 2011, 7:53 PM

    [CLOSED] How to Populate Combobox on Focus?

    Hi,

    How can i populate the data in a combobox when the user focuses on the combbox. I tried like this but not able see the data.

    <ext:ComboBox ID="ComboBoxSito" runat="server" Width="350px" MinListWidth="450px"
      ValueField="Value" DisplayField="Text" TypeAhead="true" HideTrigger="true"
      MinChars="1" FieldLabel="Columns" LabelWidth="30">
      <Store>
         <ext:Store runat="server" OnRefreshData="RefreshData">
            <Reader>
               <ext:JsonReader>
                  <Fields>
                     <ext:RecordField Name="Text"  />
                     <ext:RecordField Name="Value" />
                  </Fields>
               </ext:JsonReader>
            </Reader>
         </ext:Store>
      </Store>
      <Listeners>
      </Listeners>
   </ext:ComboBox>
    Note:
    1. The data must be returned from an ASPX server side method.
    2. I do not want to use the HTTP Proxy as explained in the Custom Search example.

    Regards,
    Manoj.
    Last edited by Daniil; Aug 01, 2011 at 7:03 PM. Reason: [CLOSED]
  2. #2
    Jul 30, 2011, 9:23 PM
    Hi,

    I can suggest you to use DirectMethod.

    Example

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

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

<script runat="server">
    [DirectMethod]    
    public void DataBind()
    {
        Store store = this.ComboBox1.GetStore();
        store.DataSource = new object[] 
            { 
                new object[] { "1", "item1: " + DateTime.Now.ToLongTimeString() },
                new object[] { "2", "item2: " + DateTime.Now.ToLongTimeString() },
                new object[] { "3", "item3: " + DateTime.Now.ToLongTimeString() }
            };
        store.DataBind();
    }
</script>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Ext.Net Example</title>
</head>
<body>
    <form runat="server">
        <ext:ResourceManager runat="server" />
        <ext:ComboBox ID="ComboBox1" runat="server">
            <Store>
                <ext:Store runat="server" AutoLoad="false">
                    <Reader>
                        <ext:ArrayReader>
                            <Fields>
                                <ext:RecordField Name="value" />
                                <ext:RecordField Name="text" />
                            </Fields>
                        </ext:ArrayReader>
                    </Reader>
                </ext:Store>
            </Store>
            <Listeners>
                <Focus Handler="Ext.net.DirectMethods.DataBind();" />
            </Listeners>
        </ext:ComboBox>
    </form>
</body>
</html>
  3. #3
    Aug 01, 2011, 5:16 PM
    Hi Daniil,

    Thank you. I was able achive what i want.

Similar Threads

  1. [CLOSED] ComboBox Focus Expanded
    By jeybonnet in forum 1.x Legacy Premium Help
    Replies: 17
    Last Post: Jan 16, 2013, 3:04 PM
  2. How to populate ComboBox from Entity Model table?
    By rpk2006 in forum 1.x Help
    Replies: 4
    Last Post: Feb 21, 2012, 4:23 AM
  3. [CLOSED] combobox populate
    By nhg_itd in forum 1.x Legacy Premium Help
    Replies: 2
    Last Post: Dec 17, 2011, 9:08 AM
  4. Populate combobox from DirectEvent (without using store)
    By okutlubay in forum 1.x Help
    Replies: 12
    Last Post: Jun 30, 2010, 9:31 PM
  5. populate grid row/field from a parent table on a ComboBox
    By egodoy in forum 1.x Help
    Replies: 1
    Last Post: May 08, 2009, 5:34 PM

Posting Permissions