Hi,
I have the following environment:  VS 2010, Asp.Net, Visual Basic and Telerik controls.

I started this project by trying to implement this solution with an unbound Radgrid, but then the Radgrid html code was not sent to the client in the page source file, I decided to use the bound Radgrid method.
Here is what i'm trying now:
I created an .aspx page that has an empty (no columns defined) Radgrid control bound to a datasource that I'm populating in the Onclick event code of a button using the following code:

    Protected Sub Button1_Click(sender As Object, e As System.EventArgs) Handles Button1.Click

            SqlDataSource1.SelectCommand = "exec CreateForecastEntry 'F2012v1', 'USA-ILMO-T1' "
            grdForecast.DataBind()

    End Sub

The datasource query returns a dataset with a variable number of columns (months) depending on some user settings.  I want the user to be able to edit the grid columns, so I want to add GridTemplateColumns with Textboxes for each of the columns.

The grid should look similar to this:

the Query returns in this case 3 columns, which I want to transform into 5 columns like this:

Column names:   Item | January | February | T_January | T_February
Column types:  GridBoundColumn | GridBoundColumn | GridBoundColumn | GridTemplateColumn (textbox) | GridTemplateColumn (textbox)

Note:  The number of months will be variable.

I have tried using the following code to create the columns, but it does not create the appropriate number of columns, and it creates them at the beginning of the grid:

Protected Sub grdForecast_ItemCreated(sender As Object, e As Telerik.Web.UI.GridItemEventArgs) Handles grdForecast.ItemCreated
        Dim tc As New GridTemplateColumn

        tc.HeaderText = "qty_" & e.Item.UniqueID
        tc.UniqueName = "qty1_" & e.Item.UniqueID
        tc.ItemTemplate = New MyTemplate(tc.UniqueName)
        grdForecast.MasterTableView.Columns.Add(tc)

    End Sub
    Private Class MyTemplate
        Implements ITemplate
        Protected textBox As TextBox
        Private colname As String

        Public Sub New(ByVal cName As String)
            MyBase.New()
            colname = cName
        End Sub

        Public Sub InstantiateIn(ByVal container As System.Web.UI.Control) Implements ITemplate.InstantiateIn
            textBox = New TextBox
            textBox.ID = "abc"
            container.Controls.Add(textBox)
        End Sub
    End Class

This code will create a random number of GridTemplateColumns and I'm able to see them in the browser page source code, but I cannot access the textboxes content using this code:

    Protected Sub Button2_Click(sender As Object, e As System.EventArgs) Handles Button2.Click
        Dim quantity As TextBox
        For Each row As GridDataItem In grdForecast.Items
             quantity = CType(row.FindControl("abc"), TextBox)
            quantity = Nothing
        Next
    End Sub

Any insight on what I'm doing wrong would be appreciated. Thanks
Eduardo

When the page first loads its fine. When I change page it throws an error on Me.rlv_telephone.DataKeyValues(item.DataItemIndex) stating System.ArgumentOutOfRangeException.

Hi!

I have a question about setting focus on a radtextbox inside a radpanelbar. My code looks like this:

OnClientItemExpand, I want to set focus to the TrainingCompanyTextBox control with javascript. I've tried different ways of setting focus to the contorl, but i can't find the solution.

How can I do this?

Hello, I'm using RadGrid and I need to remove in my footer row the follow Text "Sum, Count, Avg" and I need to show only the numbers.

How I do this?

Hello everybody,

I am experiencing an issue with the RadDatePicker's calendar lookup button displaying through an ASP.Net menu.

The RadDatePicker is defined like this:


A screenshot of the page can be seen here:
http://i49.tinypic.com/2n1rf3l.png

I am using the Telerik ASP.Net AJAX Q2 2012 controls, ASP.Net 4.0 Framework (Visual Studio 2008) and Internet Explorer 8.0

Are there any properties that can control the transparency of the calendar lookup button or should I be looking at the ASP.Net Menu control instead?

Thanks for your time.

Basically i am using a custom user control named DashboardGrid. We can specify database name adn query in it and the grid gets populated.

.ascx

the code behind has following important method (I can not post the whole code but trying post just the relevant)
C# code behind (.ascx.cs)

string QueryOrStoredProcedure, bool HasStoredProcedure and int DatabaseEnum are public properties (of the custom user
control)

PAGE_LOAD :

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                LoadData();
                //DashboardGrid.ClientSettings.DataBinding.EnableCaching = true;
                DashboardGrid.DataBind();
            }
        }

Below are my sorting and paging event handlers for the RadGrid:



Following is the way I am deploying the control:


MY QUESTION IS, IF I USE THIS USER CONTROL JUST ONE TIME IT WORKS FINE BUT IF I USE THE SAME CONTROL THE VERY NEXT TIME THAN PAGING/SORTING WILL THROW THIS json ERROR.

AS I HAVE THE PAGING FOOTER I DO SEE PAGE x OF y, ITEMS p TO q OF r - CORRECTLY

Hi, I'm having a problem with the RadGrid that has 2 levels of hierarchy, all bound in code behind (using NeedDataSource and DetailTableDataBind).  Both levels have InPlace editing and the top level works correctly when I save it, it goes back into read-only mode using the RadGrid.MasterTableView.ClearEditItems() function.  I try and do the same thing for the lower level one and whatever I do it stays in Edit Mode.  I've tried the same as above, I've tried editItem.OwnerTableView.ClearEditItems() in the UpdateCommand function (which is where the top level table does it when it works).  I have looked through forums trying different suggestions such as setting AllowAutomaticUpdates, Inserts etc. to false (though from what I understand that's the default value anyway).  

The row even saves and everything it's just that it doesn't revert back to non-edit mode.  I have noticed when I step through that the list of edit items in the child TableView stays at one item even after the ClearEditItems is called on it, while the MasterTableView seems to behave as expected when ClearEditItems is called on it.  Could this be a limitation of Telerik or am I doing something wrong?

Here's my mark-up, can anyone see what I may have done to cause this?

Hi,

I have a page with a few radcombo boxes and raddateinputs.

On the initial load of the page (when ispostBack is false) I set the initial value of a couple of the raddateinputs.

I select the combo box values and the raddate values and do a Response.redirect in the code behind for the submit button passing the values of the controls  to a new page in the querystring.  The new page functions fine.  from the new page i hit the back button.  the values I picked in the Combo boxes and raddateinputs appear in the respective controls UNTIL I actually click in each one of them and they revert immediately to the default values.  I set a breakpoint in page-load and it is not firing so the cached copy is being loaded.  why aren't the values staying with the controls?

If I don't click in them and submit the page again the values passed through are the default values rather than the values that are actually vivsible in the page.  

I thought it was an ajax issue, but removed the ajax manager from the page and still have them same problem.  I tried setting viewstate on the controls and the same issue arises.

Thanks,

Jonathan

In a previous forum thread ( http://www.telerik.com/community/forums/aspnet-ajax/grid/is-this-conventional-practice-with-a-radgrid.aspx ) 'Marin' suggested that I could move the RadComboBoxes to the ItemDataBound event.

First of all, keep in mind that the RadComboBoxes have conventional Bind statements on their SelectedValue property and that they are in a RadGrid FormTemplate.

When I tried to move their population calls to ItemDataBound (within a 'if (e.Item is GridEditFormItem && e.Item.IsInEditMode)' block) it crashed.

So I suppose my question has two parts.

First: Is there a demo that does this?

Second: How do I prevent a RadComboBox from crashing on a bad incoming value, i.e. one that isn't in it's list? 
(This is more of a deja vu thing.  I'll swear I've done this before but I can't find the code...)

Is it possible to get data items in code behind if grid visible is False?