(GridDataItem item in RadGrid1.Items)

{

if (item.OwnerTableView.Name != "Signpost")

{

GridBoundColumn detailColumn = (GridBoundColumn)item.OwnerTableView.GetColumn("overview");

detailColumn.Display =

true;

detailColumn.Visible =

true;

"overview"].Visible = true;

 }

}

kindly help on how to get this working.i have seen all set of examples for this on the forum but couldnt get it done for myself.

ASP.Net version is 2.0 and Rad controls for asp.net ajax  2008 Q1

 many thanks and best regards
Ash

void cxShowAllSubmissions_CheckedChanged(object sender, System.EventArgs e)

{

BindSubmissions(

false);

}
 in code behind.

so the problem is that the event does not fire when Manager has code above, but if remove then it fires. The problem is that i need that control ajaxafied. I am new to Telerik and am sure im just misusing somehow.

Any Suggestions would be great.

BTW this is a .Net 1.1 app

Stack Trace:

[NullReferenceException: Object reference not set to an instance of an object.]
   Telerik.Web.UI.Scheduling.DataSourceViewSchedulerProvider.OnDataSourceOperationComplete(Int32 count, Exception e) +16
   System.Web.UI.DataSourceView.Update(IDictionary keys, IDictionary values, IDictionary oldValues, DataSourceViewOperationCallback callback) +69
   Telerik.Web.UI.Scheduling.DataSourceViewSchedulerProvider.Update(RadScheduler owner, Appointment appointmentToUpdate) +192
   Telerik.Web.UI.Scheduling.AppointmentController.UpdateAppointment(Appointment originalAppointment, Appointment modifiedAppointment) +363
   Telerik.Web.UI.RadScheduler.UpdateAppointmentInline(Boolean removeExceptions) +195
   Telerik.Web.UI.RadScheduler.OnBubbleEvent(Object source, EventArgs args) +235
   System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +35
   System.Web.UI.WebControls.LinkButton.OnCommand(CommandEventArgs e) +115
   System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) +132
   System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +177
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1746

telerik:RadNumericTextBox ID="txtThreshold" runat="server" Width="104px" Value='<%# DataBinder.Eval(Container,"DataItem.threshold") %>'></telerik:RadNumericTextBox>

This works fine for editing, but when I try to use it for inserting I always get an InvalidCastException: "The specified cast is invalid" with the folowing stack trace:

   at ASP.configuration_alerts_aspx.__DataBinding__control24(Object sender, EventArgs e) in d:\Projects\WebMonitor\Web\Configuration\Alerts.aspx:line 77
   at System.Web.UI.Control.OnDataBinding(EventArgs e)
   at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding)
   at System.Web.UI.Control.DataBind()
   at System.Web.UI.Control.DataBindChildren()

Replacing the NumericTextBox with a standard TextBox works fine. I have also tried setting a custom value in the ItemCommand event, to really make sure there is a value being passed to the control:

protected

void gridAlertTypes_ItemCommand(object source, GridCommandEventArgs e)
{
if  (e.CommandName == RadGrid.InitInsertCommandName)
{
 e.Canceled = true;
 System.Collections.Specialized.ListDictionary newValues = new  System.Collections.Specialized.ListDictionary();newValues["description"] = "New description";
 newValues["threshold"] = 55;
 e.Item.OwnerTableView.InsertItem(newValues);
}
}

But I still get the same error. I have also tried to declare the control so that the DataBinding only happens when in edit mode, and for insert I declare a hard-coded value of 0:

<telerik:RadNumericTextBox ID="txtThreshold" runat="server" Width="104px" Value='<%# (Container is GridEditFormInsertItem) ? 0 : DataBinder.Eval(Container,"DataItem.threshold") %>'></telerik:RadNumericTextBox>

But still no luck! I tried putting double quotes around the 0 as well. Which is strange, because if I use Value='0' that works fine, effectivly thats what the above statement should do when in insert mode. Any help would be appreciated!

Thanks
Michael

//document.getElementById('<%=RadNumericTextBox1.ClientID%>').enable();//document.getElementById('<%=TextBox1.ClientID%>').disabled = true; this won't work becaust the input is hidden
$find("<%= RadNumericTextBox1.ClientID %>").enable();

}

else

$find(

"<%= RadNumericTextBox1.ClientID %>").disabled();

//document.getElementById('<%=RadNumericTextBox1.ClientID%>').disabled = true;

//document.getElementById('<%=TextBox1.ClientID%>').disabled = false;

}

function toggle_RadDateTimePicker(obj) {
if (obj.checked) {

document.getElementById(

'<%=RadDateTimePicker1.ClientID%>').disabled = false;

}

else

document.getElementById(

'<%=RadDateTimePicker1.ClientID%>').disabled = true;

}

function toggle_TextBox(obj) {

if (obj.checked) {

document.getElementById(

'<%=TextBox1.ClientID%>').disabled = false;

}

else

document.getElementById(

'<%=TextBox1.ClientID%>').disabled = true;

}

</

script>

<telerik:RadScriptManager ID="RadScriptManager1" runat="server"

OutputCompression="AutoDetect">

</telerik:RadScriptManager>

<div>

<asp:CheckBox ID="CheckBox1" runat="server" onclick="toggle_RadNumericTextBox(this);" />

<br />

<telerik:RadNumericTextBox ID="RadNumericTextBox1" Runat="server" >

</telerik:RadNumericTextBox>

<br />

<asp:CheckBox ID="CheckBox2" runat="server" onclick="toggle_RadDateTimePicker(this);"/>

<br />

<telerik:RadDateTimePicker ID="RadDateTimePicker1" Runat="server"

Culture="English (United States)">

</telerik:RadDateTimePicker>

<br />

<asp:CheckBox ID="CheckBox3" runat="server" onclick="toggle_TextBox(this);" />

<br />

<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>

<br />

</div>

Your help is appreciated.