Here you are.
Example
<%@ 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)
{
Store store = this.GridPanel1.GetStore();
store.DataSource = new object[]
{
new object[] { "test11", "test12", true },
new object[] { "test12", "test22", false },
new object[] { "test13", "test32", true }
};
store.DataBind();
}
}
</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 runat="server">
<title>Ext.Net Example</title>
</head>
<body>
<form runat="server">
<ext:ResourceManager runat="server" />
<ext:GridPanel ID="GridPanel1" runat="server" AutoHeight="true">
<Store>
<ext:Store runat="server">
<Reader>
<ext:ArrayReader>
<Fields>
<ext:RecordField Name="test1" />
<ext:RecordField Name="test2" />
<ext:RecordField Name="test3" />
</Fields>
</ext:ArrayReader>
</Reader>
</ext:Store>
</Store>
<ColumnModel runat="server">
<Columns>
<ext:Column Header="Test1" DataIndex="test1" />
<ext:Column Header="Test2" DataIndex="test2" />
<ext:CheckColumn Header="Test3" DataIndex="test3" />
</Columns>
</ColumnModel>
<SelectionModel>
<ext:RowSelectionModel runat="server" />
</SelectionModel>
<KeyMap>
<ext:KeyBinding>
<Keys>
<ext:Key Code="SPACE" />
</Keys>
<Listeners>
<Event Handler="var sm = GridPanel1.selModel,
r = sm.getSelected();
if (r) {
r.set('test3', !r.get('test3'));
}
if (!sm.selectNext()) {
sm.selectFirstRow();
}" />
</Listeners>
</ext:KeyBinding>
</KeyMap>
</ext:GridPanel>
</form>
</body>
</html>