Sorry for not getting back Daniil, I have been performing a lot of data analysis this past week. It turns out that my problem was I was hiding the flex column. Once I verified that hide/show should work via Javascript, DirectEvent and/or DirectMethod I looked at my code again and found the problem.
Below is the test case that showed how to hide/show columns via different calls. Thanks again.
<%@ 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 TogglePrice(object sender, DirectEventArgs e)
{
//Ext.Net.Button button = sender as Ext.Net.Button;
//this.GridPanel1.ColumnModel.Columns[1].Hidden = button.Pressed;
//PriceColumn.Hidden = button.Pressed;
//button.Text = button.Pressed ? "Show Price (SERVER)" : "Hide Price (SERVER)";
PriceColumn.Hidden = TogglePriceBtn.Pressed;
TogglePriceBtn.Text = TogglePriceBtn.Pressed ? "Show Price (DirectEvent)" : "Hide Price (DirectEvent)";
}
[DirectMethod]
public void ToggleDate()
{
//this.GridPanel1.ColumnModel.Columns[4].Hidden = ToggleDateBtn.Pressed;
LastChangeColumn.Hidden = ToggleDateBtn.Pressed;
ToggleDateBtn.Text = ToggleDateBtn.Pressed ? "Show Date (DirectMethod)" : "Hide Date (DirectMethod)";
}
</script>
<!DOCTYPE html>
<html>
<head runat="server">
<title>Simple Array Grid - Ext.NET Examples</title>
<link href="/resources/css/examples.css" rel="stylesheet" />
<script>
var toggleChange = function (btn) {
if (btn.pressed) {
btn.setText('Show Change (JavaScript)')
App.ChangeColumn.hide();
}
else {
btn.setText('Hide Change (JavaScript)')
App.ChangeColumn.show();
}
}
var toggleDate = function (btn) {
App.direct.ToggleDate();
}
</script>
</head>
<body>
<form runat="server">
<ext:ResourceManager runat="server" />
<h1>Columns model ajax operation</h1>
<ext:GridPanel
ID="GridPanel1"
runat="server"
Title="Array Grid"
Width="600"
Height="350">
<Store>
<ext:Store ID="Store1" runat="server">
<Model>
<ext:Model 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 runat="server">
<Columns>
<ext:Column ID="CompanyColumn" runat="server" Text="Company" Width="160" DataIndex="company"
Flex="1" />
<ext:Column ID="PriceColumn" runat="server" ClientIDMode="Static" Text="Price" Width="75"
DataIndex="price">
<Renderer Format="UsMoney" />
</ext:Column>
<ext:Column ID="ChangeColumn" runat="server" ClientIDMode="Static" 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 runat="server" Mode="Single" />
</SelectionModel>
<View>
<ext:GridView runat="server" StripeRows="true" TrackOver="true" />
</View>
<BottomBar>
<ext:Toolbar runat="server">
<Items>
<ext:ToolbarFill runat="server" />
<ext:Button ID="TogglePriceBtn" runat="server" Text="Hide 'Price' (DirectEvent)"
EnableToggle="true" OnDirectClick="TogglePrice" />
<ext:Button runat="server" Text="Hide 'Change' (JavaScript)" EnableToggle="true">
<Listeners>
<Click Fn="toggleChange" />
</Listeners>
</ext:Button>
<ext:Button ID="ToggleDateBtn" runat="server" Text="Hide 'Date' (DirectMethod)" EnableToggle="true">
<Listeners>
<Click Fn="toggleDate" />
</Listeners>
</ext:Button>
</Items>
</ext:Toolbar>
</BottomBar>
</ext:GridPanel>
</form>
</body>
</html>