Feb 14, 2013, 8:59 AM
Hide Grid Column Error when Grid Header Hidden on Load
Hello,
I wondered if there's a way to hide a column from code behind when the GridPanel has HideHeaders="true" on load?
I'm getting (Uncaught TypeError: Cannot call method 'getProp' of undefined ) error from the example below:
I wondered if there's a way to hide a column from code behind when the GridPanel has HideHeaders="true" on load?
I'm getting (Uncaught TypeError: Cannot call method 'getProp' of undefined ) error from the example below:
<%@ Page Language="C#" %>
<%@ 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 = 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" }
};
this.Store1.DataBind();
}
}
protected void ToggleChange(object sender, DirectEventArgs e)
{
Ext.Net.Button button = sender as Ext.Net.Button;
this.GridPanel1.ColumnModel.Columns[2].Hidden = button.Pressed;
button.Text = button.Pressed ? "Show Change" : "Hide Change";
}
protected void ChangeHeader(object sender, DirectEventArgs e)
{
Ext.Net.Button button = sender as Ext.Net.Button;
this.GridPanel1.ColumnModel.Columns[0].Text = "New label";
button.Disabled = true;
}
protected void ChangeWidth(object sender, DirectEventArgs e)
{
Ext.Net.Button button = sender as Ext.Net.Button;
this.GridPanel1.ColumnModel.Columns[1].Width = 100;
button.Disabled = true;
}
protected void ChangeRenderer(object sender, DirectEventArgs e)
{
Ext.Net.Button button = sender as Ext.Net.Button;
Renderer r = new Renderer();
r.Fn = "change";
this.GridPanel1.ColumnModel.Columns[2].Renderer = r;
button.Disabled = true;
}
</script>
<!DOCTYPE html>
<html>
<head id="Head1" runat="server">
<title>Simple Array Grid - Ext.NET Examples</title>
<link href="/resources/css/examples.css" rel="stylesheet" />
<script>
var template = '<span style="color:{0};">{1}</span>';
var change = function (value) {
return Ext.String.format(template, (value > 0) ? "green" : "red", value);
};
var pctChange = function (value) {
return Ext.String.format(template, (value > 0) ? "green" : "red", value + "%");
};
</script>
</head>
<body>
<form id="Form1" runat="server">
<ext:ResourceManager ID="ResourceManager1" runat="server" />
<h1>Columns model ajax operation</h1>
<ext:GridPanel
ID="GridPanel1"
runat="server"
Title="Array Grid"
Width="600"
Height="350"
HideHeaders="true">
<Store>
<ext:Store ID="Store1" runat="server">
<Model>
<ext:Model ID="Model1" runat="server">
<Fields>
<ext:ModelField Name="company" />
<ext:ModelField Name="price" Type="Float" />
<ext:ModelField Name="change" Type="Float" />
<ext:ModelField Name="pctChange" Type="Float" />
<ext:ModelField Name="lastChange" Type="Date" DateFormat="M/d hh:mmtt" />
</Fields>
</ext:Model>
</Model>
</ext:Store>
</Store>
<ColumnModel ID="ColumnModel1" runat="server">
<Columns>
<ext:Column ID="CompanyColumn" runat="server" Text="Company" Width="160" DataIndex="company" Flex="1" />
<ext:Column ID="PriceColumn" runat="server" Text="Price" Width="75" DataIndex="price">
<Renderer Format="UsMoney" />
</ext:Column>
<ext:Column ID="ChangeColumn" runat="server" Text="Change" Width="75" DataIndex="change" />
<ext:Column ID="ChangePrtColumn" runat="server" Text="Change %" Width="75" DataIndex="pctChange" />
<ext:DateColumn ID="LastChangeColumn" runat="server" Text="Last Updated" Width="85" DataIndex="lastChange" />
</Columns>
</ColumnModel>
<SelectionModel>
<ext:RowSelectionModel ID="RowSelectionModel1" runat="server" Mode="Single" />
</SelectionModel>
<View>
<ext:GridView ID="GridView1" runat="server" StripeRows="true" TrackOver="true" />
</View>
<BottomBar>
<ext:Toolbar ID="Toolbar1" runat="server">
<Items>
<ext:ToolbarFill ID="ToolbarFill1" runat="server" />
<ext:Button ID="Button1"
runat="server"
Text="Change Header">
<DirectEvents>
<Click OnEvent="ChangeHeader" Single="true" />
</DirectEvents>
</ext:Button>
<ext:Button ID="Button2"
runat="server"
Text="Change Width">
<DirectEvents>
<Click OnEvent="ChangeWidth" Single="true" />
</DirectEvents>
</ext:Button>
<ext:Button ID="Button3"
runat="server"
Text="Change Renderer">
<DirectEvents>
<Click OnEvent="ChangeRenderer" Success="#{GridPanel1}.getView().refresh(false);" />
</DirectEvents>
</ext:Button>
<ext:Button ID="Button4"
runat="server"
Text="Hide 'Change'"
EnableToggle="true"
OnDirectClick="ToggleChange"
/>
</Items>
</ext:Toolbar>
</BottomBar>
</ext:GridPanel>
</form>
</body>
</html>