Hi,
We have added Prepare property for RowExpander. If this function return false then expander for row will not be created.
Please see the following sample (please update from SVN first)
<%@ Page Language="C#" %>
<%@ Register Assembly="Coolite.Ext.Web" Namespace="Coolite.Ext.Web" TagPrefix="ext" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
this.Store1.DataSource = new object[]
{
new object[] {"3m Co", 71.72, 0.02, 0.03, "9/1 12:00am", "Manufacturing"},
new object[] {"Alcoa Inc", 29.01, 0.42, 1.47, "9/1 12:00am", "Manufacturing"},
new object[] {"Altria Group Inc", 83.81, 0.28, 0.34, "9/1 12:00am", "Manufacturing"},
new object[] {"American Express Company", 52.55, 0.01, 0.02, "9/1 12:00am", "Finance"},
new object[] {"American International Group, Inc.", 64.13, 0.31, 0.49, "9/1 12:00am", "Services"},
new object[] {"AT&T Inc.", 31.61, -0.48, -1.54, "9/1 12:00am", "Services"},
new object[] {"Boeing Co.", 75.43, 0.53, 0.71, "9/1 12:00am", "Manufacturing"},
new object[] {"Caterpillar Inc.", 67.27, 0.92, 1.39, "9/1 12:00am", "Services"},
new object[] {"Citigroup, Inc.", 49.37, 0.02, 0.04, "9/1 12:00am", "Finance"},
new object[] {"E.I. du Pont de Nemours and Company", 40.48, 0.51, 1.28, "9/1 12:00am", "Manufacturing"},
new object[] {"Exxon Mobil Corp", 68.1, -0.43, -0.64, "9/1 12:00am", "Manufacturing"},
new object[] {"General Electric Company", 34.14, -0.08, -0.23, "9/1 12:00am", "Manufacturing"},
new object[] {"General Motors Corporation", 30.27, 1.09, 3.74, "9/1 12:00am", "Automotive"},
new object[] {"Hewlett-Packard Co.", 36.53, -0.03, -0.08, "9/1 12:00am", "Computer"},
new object[] {"Honeywell Intl Inc", 38.77, 0.05, 0.13, "9/1 12:00am", "Manufacturing"},
new object[] {"Intel Corporation", 19.88, 0.31, 1.58, "9/1 12:00am", "Computer"},
new object[] {"International Business Machines", 81.41, 0.44, 0.54, "9/1 12:00am", "Computer"},
new object[] {"Johnson & Johnson", 64.72, 0.06, 0.09, "9/1 12:00am", "Medical"},
new object[] {"JP Morgan & Chase & Co", 45.73, 0.07, 0.15, "9/1 12:00am", "Finance"},
new object[] {"McDonald\"s Corporation", 36.76, 0.86, 2.40, "9/1 12:00am", "Food"},
new object[] {"Merck & Co., Inc.", 40.96, 0.41, 1.01, "9/1 12:00am", "Medical"},
new object[] {"Microsoft Corporation", 25.84, 0.14, 0.54, "9/1 12:00am", "Computer"},
new object[] {"Pfizer Inc", 27.96, 0.4, 1.45, "9/1 12:00am", "Medical"},
new object[] {"The Coca-Cola Company", 45.07, 0.26, 0.58, "9/1 12:00am", "Food"},
new object[] {"The Home Depot, Inc.", 34.64, 0.35, 1.02, "9/1 12:00am", "Retail"},
new object[] {"The Procter & Gamble Company", 61.91, 0.01, 0.02, "9/1 12:00am", "Manufacturing"},
new object[] {"United Technologies Corporation", 63.26, 0.55, 0.88, "9/1 12:00am", "Computer"},
new object[] {"Verizon Communications", 35.57, 0.39, 1.11, "9/1 12:00am", "Services"},
new object[] {"Wal-Mart Stores, Inc.", 45.45, 0.73, 1.63, "9/1 12:00am", "Retail"}
};
this.Store1.DataBind();
const string desc = "this.desc = \"Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Sed metus nibh, sodales a, porta at, " +
"vulputate eget, dui. Pellentesque ut nisl. Maecenas tortor turpis, interdum non, sodales non, " +
"iaculis ac, lacus. Vestibulum auctor, tortor quis iaculis malesuada, libero lectus bibendum purus, " +
"sit amet tincidunt quam turpis vel lacus. In pellentesque nisl non sem. Suspendisse nunc sem, " +
"pretium eget, cursus a, fringilla vel, urna.<br/><br/>Aliquam commodo ullamcorper erat. " +
"Nullam vel justo in neque porttitor laoreet. Aenean lacus dui, consequat eu, adipiscing eget, " +
"nonummy non, nisi. Morbi nunc est, dignissim non, ornare sed, luctus eu, massa. Vivamus eget quam. " +
"Vivamus tincidunt diam nec urna. Curabitur velit.\";";
string dataID = string.Concat(this.Store1.ClientID, "_Data");
string push = string.Format(@"for(var i = 0; i < {0}.length; i++){{{0}[i].push(desc);}}", dataID);
this.ScriptManager1.RegisterClientScriptBlock("desc_data", desc);
this.ScriptManager1.RegisterOnReadyScript(push);
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>Coolite Example - Grid3 Example</title>
<ext:ScriptContainer ID="ScriptContainer1" runat="server" />
<script type="text/javascript">
var template = '{1}';
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 + '%');
}
var prepare = function(record) {
return record.data.price < 50;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<ext:ScriptManager ID="ScriptManager1" runat="server" />
<ext:Store ID="Store1" runat="server" IgnoreExtraFields="false">
<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="n/j h:ia" />
<ext:RecordField Name="industry" />
<ext:RecordField Name="desc" />
</Fields>
</ext:ArrayReader>
</Reader>
</ext:Store>
<ext:GridPanel ID="GridPanel1" runat="server" StoreID="Store1" TrackMouseOver="true"
Title="Expander Rows with collapsed by default, Collapse and Force Fit" Collapsible="true" AnimCollapse="true"
Icon="Table" Width="600" Height="300">
<ColumnModel ID="ColumnModel1" runat="server">
<Columns>
<ext:Column Header="Company" Width="40" Sortable="true" DataIndex="company" />
<ext:Column Header="Price" Width="20" Sortable="true" DataIndex="price">
<Renderer Format="UsMoney" />
</ext:Column>
<ext:Column Header="Change" Width="20" Sortable="true" DataIndex="change">
<Renderer Fn="change" />
</ext:Column>
<ext:Column Header="Change" Width="20" Sortable="true" DataIndex="pctChange">
<Renderer Fn="pctChange" />
</ext:Column>
<ext:Column Header="Last Updated" Width="20" Sortable="true" DataIndex="lastChange">
<Renderer Fn="Ext.util.Format.dateRenderer('m/d/Y')" />
</ext:Column>
</Columns>
</ColumnModel>
<View>
<ext:GridView ID="GridView1" runat="server" ForceFit="true" />
</View>
<SelectionModel>
<ext:RowSelectionModel ID="RowSelectionModel1" runat="server" />
</SelectionModel>
<Plugins>
<ext:RowExpander ID="RowExpander1" runat="server" Collapsed="true">
<Template ID="Template1" runat="server">
<p>Company: {company}</p><br/>
<p>Summary: {desc}</p>
</Template>
</ext:RowExpander>
</Plugins>
</ext:GridPanel>
</form>
</body>
</html>
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