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[CLOSED] NumberField EmptyText

  1. #1
    Oct 25, 2010, 7:52 AM

    [CLOSED] NumberField EmptyText

    After migrating from Coolite 0.8.2 version to Coolite 1.0, I have found a problem with property EmptyText on NumberField.

    I would like to set an informative text on the NumberField, but when the user type any value, the text must dissapears (I think that how the emptyText property works).
                            <ext:NumberField runat="server" ID="txtCustomerAccountVoucher"  EmptyText="Voucher Number" AllowDecimals="false"
                            AllowNegative="false"  AllowBlank="false"
                            Title="<%$ Resources: txtCustomerAccountVoucher.Title %>">
                        </ext:NumberField>
    After the migration, the text "-1,7976931348623157e+308" is shown instead of "Voucher Number". Also, the value of the NumberField is not recover correctly in this situation.

    I have test using BlankText instead of Empty Text, no error is shown but no informative text is not shown.

    Could you please told me what I am doing wrong?
    Last edited by geoffrey.mcgill; Oct 27, 2010 at 7:30 AM. Reason: [CLOSED]
  2. #2
    Oct 25, 2010, 8:23 AM
    Hi,

    Here are links to the docs records of emptyText and blankText properties (ExtJS docs).
    http://dev.sencha.com/deploy/dev/doc...mber=blankText
    http://dev.sencha.com/deploy/dev/doc...mber=emptyText

    If I understood you properly you should use the EmptyText property in according to your requirement.
    But take care because of
    Note: that this value will be submitted to the server if this field is enabled and configured with a name.
    So, in this case a value "Voucher Number" will be submitted.
    After the migration, the text "-1,7976931348623157e+308" is shown instead of "Voucher Number". Also, the value of the NumberField is not recover correctly in this situation.
    Please clarify how can we reproduce it?
    Could you provide a sample code like the following one?

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

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

<!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:NumberField runat="server" EmptyText="Empty text" />
    </form>
</body>
</html>
  3. #3
    Oct 25, 2010, 2:56 PM
    I adjust you my code


    Aspx:

    <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="PruebaBorrar.aspx.cs" Inherits="Acris.Web.Reservations.PruebaBorrar"
    EnableViewState="false" %>

<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ Import Namespace="Ext.Net.Utilities" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title></title>
    <!-- Estilos -->
</head>
<body>
    <form id="form1" runat="server">
    <div id="mask" style="display: none">
    </div>
    <ext:ResourceManager ID="ResourceManager1" runat="server" StateProvider="None" />
    <!-- Contenido -->
    <ext:Viewport ID="Viewport1" runat="server">
        <Content>
            <table>
                <tr>
                    <td>
                        <ext:NumberField ID="nfVoucherNumber" runat="server" AllowBlank="true" AllowDecimals="false"
                            AllowNegative="false" DecimalPrecision="0" EmptyText="Number of the voucher" />
                    </td>
                </tr>
            </table>
            <ext:Button ID="btnSearch" runat="server" Text="Search" AutoPostBack="false">
                <DirectEvents>
                    <Click OnEvent="btnSearch_OnClick" Buffer="250">
                        <EventMask ShowMask="true" Msg="" />
                    </Click>
                </DirectEvents>
            </ext:Button>
        </Content>
    </ext:Viewport>
    </form>
</body>
</html>
    Codebehind:

    using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Ext.Net;

namespace Acris.Web.Reservations
{
    public partial class PruebaBorrar : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }
        protected void btnSearch_OnClick(object sender, DirectEventArgs e)
        {
            if (!nfVoucherNumber.IsEmpty)
            {
                //A Voucher Number has been typed
            }
            else
            {
                //none Voucher Number has been typed
            }
        }
    }
}
    If I click on button "btnSearch" without insert any value on the numberField "nfVoucherNumber":

    nfVoucherNumber.Value = -1.7976931348623157E+308
nfVoucherNumber.IsEmpty = false.
    What i would like is a similar behaviour that when you use the EmptyText on a TriggerField, that is, this value doesn't affect to the TriggerField.Value. In my example, what i would like is to be able to detect if the user has typed a value on the numberField.

    Thank you!
    Last edited by geoffrey.mcgill; Oct 25, 2010 at 8:54 PM. Reason: please use [CODE] tags
  4. #4
    Oct 25, 2010, 8:37 PM
    Hi,

    Thanks we fixed it. We are moving SVN repository to the new area therefore I cannot commit at this moment. I will notify when all will be done

    At this moment you can add the following code to the NumberFieldBase.cs file in your local repository
    /// <summary>
        /// The fields null value.
        /// </summary>
        [Meta]
        [Category("5. Field")]
        [Description("The fields null value.")]
        public override object EmptyValue
        {
            get
            {
                object obj = this.ViewState["EmptyValue"];
                return (obj == null) ? double.MinValue : obj;
            }
            set
            {
                this.ViewState["EmptyValue"] = value;
            }
        }
  5. #5
    Oct 27, 2010, 7:30 AM
    This fix has been committed to the new SVN location at:

    http://svn.ext.net/premium/trunk/

    Please see http://forums.ext.net/showthread.php?10672#post44029 for more information on relocating SVN.
    Last edited by geoffrey.mcgill; Nov 08, 2010 at 7:03 PM.
    Geoffrey McGill
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