Sep 01, 2011, 2:45 PM
[1.1] Problems with Gridpanel's store load listener
I have this gridpanel that works correctly without a listener in its store, when I put a load listener to show a picture when the grid is empty it throws a javascript error saying the grid is not defined.
Here's my test code. The only thing different from the normal sample is a javascript function named showImage, a style named .empty-grid and the load listener in the grid.
Larz
Here's my test code. The only thing different from the normal sample is a javascript function named showImage, a style named .empty-grid and the load listener in the grid.
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1._Default" %>
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
if (!X.IsAjaxRequest)
{
this.Store1.DataSource = this.Data;
this.Store1.DataBind();
}
}
private object[] Data
{
get
{
return new object[]
{
new object[] { "3m Co", 71.72, 0.02, 0.03, "9/1 12:00am" },
new object[] { "Alcoa Inc", 29.01, 0.42, 1.47, "9/1 12:00am" },
new object[] { "Altria Group Inc", 83.81, 0.28, 0.34, "9/1 12:00am" },
new object[] { "American Express Company", 52.55, 0.01, 0.02, "9/1 12:00am" },
new object[] { "American International Group, Inc.", 64.13, 0.31, 0.49, "9/1 12:00am" },
new object[] { "AT&T Inc.", 31.61, -0.48, -1.54, "9/1 12:00am" },
new object[] { "Boeing Co.", 75.43, 0.53, 0.71, "9/1 12:00am" },
new object[] { "Caterpillar Inc.", 67.27, 0.92, 1.39, "9/1 12:00am" },
new object[] { "Citigroup, Inc.", 49.37, 0.02, 0.04, "9/1 12:00am" },
new object[] { "E.I. du Pont de Nemours and Company", 40.48, 0.51, 1.28, "9/1 12:00am" },
new object[] { "Exxon Mobil Corp", 68.1, -0.43, -0.64, "9/1 12:00am" },
new object[] { "General Electric Company", 34.14, -0.08, -0.23, "9/1 12:00am" },
new object[] { "General Motors Corporation", 30.27, 1.09, 3.74, "9/1 12:00am" },
new object[] { "Hewlett-Packard Co.", 36.53, -0.03, -0.08, "9/1 12:00am" },
new object[] { "Honeywell Intl Inc", 38.77, 0.05, 0.13, "9/1 12:00am" },
new object[] { "Intel Corporation", 19.88, 0.31, 1.58, "9/1 12:00am" },
new object[] { "International Business Machines", 81.41, 0.44, 0.54, "9/1 12:00am" },
new object[] { "Johnson & Johnson", 64.72, 0.06, 0.09, "9/1 12:00am" },
new object[] { "JP Morgan & Chase & Co", 45.73, 0.07, 0.15, "9/1 12:00am" },
new object[] { "McDonald\"s Corporation", 36.76, 0.86, 2.40, "9/1 12:00am" },
new object[] { "Merck & Co., Inc.", 40.96, 0.41, 1.01, "9/1 12:00am" },
new object[] { "Microsoft Corporation", 25.84, 0.14, 0.54, "9/1 12:00am" },
new object[] { "Pfizer Inc", 27.96, 0.4, 1.45, "9/1 12:00am" },
new object[] { "The Coca-Cola Company", 45.07, 0.26, 0.58, "9/1 12:00am" },
new object[] { "The Home Depot, Inc.", 34.64, 0.35, 1.02, "9/1 12:00am" },
new object[] { "The Procter & Gamble Company", 61.91, 0.01, 0.02, "9/1 12:00am" },
new object[] { "United Technologies Corporation", 63.26, 0.55, 0.88, "9/1 12:00am" },
new object[] { "Verizon Communications", 35.57, 0.39, 1.11, "9/1 12:00am" },
new object[] { "Wal-Mart Stores, Inc.", 45.45, 0.73, 1.63, "9/1 12:00am" }
};
}
}
</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 id="Head1" runat="server">
<title>Ext.NET Examples</title>
<link href="../../../../resources/css/examples.css" rel="stylesheet" type="text/css" />
<ext:ResourcePlaceHolder runat="server" />
<style type="text/css">
.empty-grid .x-grid3-body
{
height: 100px !important;
background-image:url("../../Static/images/logo_blanco.jpg");
background-repeat:no-repeat;
background-position:center center;
}
</style>
<script type="text/javascript">
var template = '<span style="color:{0};">{1}</span>';
var change = function (value) {
return String.format(template, (value > 0) ? "green" : "red", value);
};
var pctChange = function (value) {
return String.format(template, (value > 0) ? "green" : "red", value + "%");
};
function showImage(grid, records) {
if (records && records.length == 0) {
if (grid.rendered) {
grid.body.addClass("empty-grid");
}
else {
grid.on("render", function () { this.body.addClass("empty-grid"); }, this);
}
}
else {
if (grid.rendered) {
grid.body.removeClass("empty-grid");
}
else {
grid.on("render", function () { this.body.removeClass("empty-grid"); }, this);
}
}
}
</script>
</head>
<body>
<ext:ResourceManager runat="server" />
<h1>Simple Array Grid</h1>
<ext:GridPanel
ID="GridPanel1"
runat="server"
StripeRows="true"
Title="Array Grid"
TrackMouseOver="true"
Width="600"
Height="350"
AutoExpandColumn="company">
<Store>
<ext:Store ID="Store1" runat="server">
<Reader>
<ext:ArrayReader>
<Fields>
<ext:RecordField Name="company" />
<ext:RecordField Name="price" Type="Float" />
<ext:RecordField Name="change" Type="Float" />
<ext:RecordField Name="pctChange" Type="Float" />
<ext:RecordField Name="lastChange" Type="Date" DateFormat="M/d hh:mmtt" />
</Fields>
</ext:ArrayReader>
</Reader>
<Listeners>
<Load Handler="showImage(#{GridPanel1}, records);" />
</Listeners>
</ext:Store>
</Store>
<ColumnModel runat="server">
<Columns>
<ext:Column ColumnID="Company" Header="Company" DataIndex="company" />
<ext:Column Header="Price" DataIndex="price">
<Renderer Format="UsMoney" />
</ext:Column>
<ext:Column ColumnID="Change" Header="Change" DataIndex="change">
<Renderer Fn="change" />
</ext:Column>
<ext:Column Header="Change" DataIndex="pctChange">
<Renderer Fn="pctChange" />
</ext:Column>
<ext:DateColumn Header="Last Updated" DataIndex="lastChange" />
</Columns>
</ColumnModel>
<SelectionModel>
<ext:RowSelectionModel runat="server" SingleSelect="true" />
</SelectionModel>
</ext:GridPanel>
</body>
</html>Larz
