I have the calendar set to allow multiple selection. Each selected day is going to be stored in the db. The issue I am having is determining what date was unselected from e.SelectedDates. I have found no other function/property to detemine this value.

My goal is simular to this. but even this does not allow me to know what the unselected date was.
http://www.telerik.com/community/forums/aspnet-ajax/calendar/toggle-function.aspx

I am using VS2005 telerik version 2008.1.619.20. I cannot upgrade.

Thanks

Hi,

Am I missing something? The $find is not working for a RadPanelBar, here is the code:


I tried to put the script block on the header tag and in the body tag. If I replace by $get, it works, but then I can't access the findItemByText function. The funny thing is that I use a very similar code on other page and it works, the difference is that I use a RadMenu instead a RadPanelBar.

On, the call to checkMain() would be on the onload event of the body, I tried to move around to see if there was something to do with the timing of this call, but no luck.

Any help is appreciated.

Thanks,
Eduardo

If you change your example page to have the following code-up front code.  When you expand the hierarchical item "About us" the child group height setting goes out the window (see attached img).  Is there anyway around this?

Hello Telerik Team,

I have a grid that I bind on the client side.

I want to create a custom filtering column for my grid.  I have successfully derived from GridBoundColumn to create GridFilteringBoundColumn.  I override the SetupFilterControls method and all is well.

However, I also have a GridButtonColumn that I would like to be able to filter on.  If I derive from GridButtonColumn in the same exact way as above, the cells do not get rendered as hyperlinks and clicking on the text in the cell does nothing (I expect it to do a fireCommand with my command name that I assigned.

I have verified with a debugger that the CommandName property is set correctly but I can't figure out why the cells do not render properly. In the browser, when I use the Telerik GridButtonColumn, the cells all contain text of this form:


but with my derived Column, all I get is simpletext after the grid binds on the client side.

What am I missing?

Thanks
Bob

Hi,

I need to create a combobox with variable number of columns.  Both the number of columns, and the column names would be determined only at run time.  Also, I need the combobox to be a multiselect combo, so I need to put in a checkbox in the item template.  So, I am creating the item template and header template at runtime. 

When I run the code, I am getting the error "Multiple controls with the same ID 'chkSourceElementValue' were found. FindControl requires that controls have unique IDs."  where chkSourceElementValue is the ID of the checkbox thats created in the item template.  I am setting the item template, header template, data source at page_load and also data binding it at that point.  I have enclosed snippets of my code, as well as the error message stack below.  it looks like the error is originating from within RadComboBox. 

I am using the latest version of Telerik ASP.NET AJAX Controls (ASP.NET AJAX Q3 2010 NET 35)

Please advise at the earliest.  Thank you.

Page_Load:

 

 

this

 

.rcbSourceElement.ItemTemplate = new SourceElementValueDropDownTemplate(ListItemType.Item, iCountOfColumnsInDataset, mColumnNamesToDisplay);

 

 

 

this.rcbSourceElement.HeaderTemplate = new SourceElementValueDropDownTemplate(ListItemType.Header, iCountOfColumnsInDataset, mColumnNamesToDisplay);

 

 

 

this.rcbSourceElement.DataSource = dsSourceElementValuesForDisplay;

 

 

 

this.rcbSourceElement.DataBind();

 

Template Class

public class SourceElementValueDropDownTemplate : ITemplate
{
    PlaceHolder ph = new PlaceHolder();
    private ListItemType CurrentTemplateType { get; set; }
    private int CountOfColumns { get; set; }
    private string[] ColumnHeaders { get; set; }

    public SourceElementValueDropDownTemplate(ListItemType type, int countOfColumnsInDropDown, string[] columnHeaders)
    {
        CurrentTemplateType = type;
        CountOfColumns = countOfColumnsInDropDown;
        ColumnHeaders = columnHeaders;
    }

    void  ITemplate.InstantiateIn(Control container)
    {
        CheckBox chkSourceElementValue;
        Label lblSourceElementValue;
        switch(CurrentTemplateType)
        {
            case ListItemType.Header:
                ph.Controls.Add(new LiteralControl("<ul>"));
                foreach(string mColName in ColumnHeaders)
                {
                    ph.Controls.Add(new LiteralControl("<li class='rcbColumn'>"));
                    ph.Controls.Add(new LiteralControl(mColName));
                    ph.Controls.Add(new LiteralControl("</li>"));
                }
                ph.Controls.Add(new LiteralControl("</ul>"));
                container.Controls.Add(ph);
               
                break;
            case ListItemType.Item:
                ph.Controls.Add(new LiteralControl("<ul>"));
                for (int iRCbColCtr = 1; iRCbColCtr < CountOfColumns ; iRCbColCtr++) /* First column of the dataset is expected to be the ELEMENT_VALUE_KEY.  No need to show that in a column */
                {
                    ph.Controls.Add(new LiteralControl("<li class='rcbColumn'>"));

                    if (iRCbColCtr == 1) // This is the first column - must appear as a checkbox
                    {
                        chkSourceElementValue = new CheckBox();
                        chkSourceElementValue.ID = "chkSourceElementValue";
                        chkSourceElementValue.Attributes.Add("ColIndex", iRCbColCtr.ToString());
                        chkSourceElementValue.DataBinding += new EventHandler(chkSourceElementValue_DataBinding);

                        //chkSourceElementValue.CheckedChanged += new EventHandler(chkSourceElementValue_CheckedChanged);
                        ph.Controls.Add(chkSourceElementValue);
                    }
                    else
                    {
                        lblSourceElementValue = new Label();
                        lblSourceElementValue.ID = "lblSourceElementValue"; 
                        lblSourceElementValue.Attributes.Add("ColIndex", iRCbColCtr.ToString());
                        lblSourceElementValue.DataBinding += new EventHandler(lblSourceElementValue_DataBinding);
                        ph.Controls.Add(lblSourceElementValue);
                    }
                   
                    ph.Controls.Add(new LiteralControl("</li>"));
                }
                ph.Controls.Add(new LiteralControl("</ul>"));
                //ph.DataBinding += new EventHandler(ph_DataBinding);

                container.Controls.Add(ph);
                break;
        }
    }

    void chkSourceElementValue_CheckedChanged(object sender, EventArgs e)
    {
        CheckBox chkSourceElementValue = sender as CheckBox;
        RadComboBox rcbParentCombo = chkSourceElementValue.Parent as RadComboBox;

    }

    void lblSourceElementValue_DataBinding(object sender, EventArgs e)
    {
        Label lblSourceElementValue = (sender) as Label;
        int iColIndex = Convert.ToInt16(lblSourceElementValue.Attributes["ColIndex"]);

        RadComboBoxItem container = (RadComboBoxItem)lblSourceElementValue.NamingContainer;
        lblSourceElementValue.Text = ((DataRowView)(container.DataItem))[iColIndex].ToString();
    }

    void chkSourceElementValue_DataBinding(object sender, EventArgs e)
    {
        CheckBox chkSourceElementValue = (sender) as CheckBox;
        int iColIndex = Convert.ToInt16(chkSourceElementValue.Attributes["ColIndex"]);

        RadComboBoxItem container = (RadComboBoxItem)chkSourceElementValue.NamingContainer;

        chkSourceElementValue.Text = ((DataRowView)(container.DataItem))[iColIndex].ToString();
    }
}

Error Received :


[HttpException (0x80004005): Multiple controls with the same ID 'chkSourceElementValue' were found. FindControl requires that controls have unique IDs.]
   System.Web.UI.Control.FillNamedControlsTable(Control namingContainer, ControlCollection controls) +273
   System.Web.UI.Control.FillNamedControlsTable(Control namingContainer, ControlCollection controls) +320
   System.Web.UI.Control.EnsureNamedControlsTable() +61
   System.Web.UI.Control.FindControl(String id, Int32 pathOffset) +222
   System.Web.UI.Control.FindControl(String id) +12
   Telerik.Web.ChildControlHelper.FindControlRecursive(String ID, Control root) +182
   Telerik.Web.ChildControlHelper.FindControlRecursive(String ID, Control root) +227
   Telerik.Web.ChildControlHelper.FindControlRecursive(String ID, Control root) +227
   Telerik.Web.ChildControlHelper.FindControlRecursive(String ID, Control root) +227
   Telerik.Web.ChildControlHelper.FindControlRecursive(Control searcher, String ID) +186
   Telerik.Web.UI.RadAjaxControl.OnPagePreRender(Object sender, EventArgs e) +1031
   System.EventHandler.Invoke(Object sender, EventArgs e) +0
   System.Web.UI.Control.OnPreRender(EventArgs e) +8687734
   System.Web.UI.Control.PreRenderRecursiveInternal() +80
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint
 

Hi,

I am using Rad Grid Resizing-AllowColumnResize="true" and  AllowFilteringByColumn="true" Property together. Also have AllowScroll="True"  When I Resizing-AllowColumnResize="false" grid display correctly with proper column width. but  
we need to allow Column Resize and Filter Option together with correct appearance of grid. Not sure how to fix appearance of cutting filter column.

Attaching here screenshot and pasting code for grid.

Thanks,

Hi,

I just updated from MVC1 to MVC2 and all ajax request where working fine and now I get this exception:


I've read that there is a bug with the Role Provider but I disabled it and it's still happening... very odd that from working I have now trouble in every component that uses this.

any ideas/thoughts? 

thank you 

regards,

jose

I've spent many hours trying to reduce page size by removing redundant spaces, tabs, and EOL marks. It seems no matter what I do, Telerik JavaScripts are going to cough somewhere. Is there a published bit of code which can be placed in the Render method which will reduce page size without adversely affecting scripts?

Please do not refer me to CodeProject, StackOverflow, or other googled resources unless you're sure something works. Many blogs and forum postings imply have wrong and/or incomplete info. Regular expressions are often cited but frequently wrong. I'm looking for code that people are actually using with Telerik RadControls for ASP.NET Ajax. With this, I and others may be able to improve upon it - but we need a better base than some unknown code that someone simply found somewhere on the net.

On the flip-side of this, code in the Render method must be optimized. It doesn't do much good to reduce network through put and browser rendering time if we're going to spend more time on the server whittling down some small number of bytes. The best that I can shave off so far is about 30k from pages of less than 200k in size. It's not worth it to lose time with a 15% size reduction.

Thanks.

Hello! I have been trying to get data bound to a textbox nested inside an ItemTemplate to no avail. I have attempted to bind it in code behind by looping through items in the list, as well as in the ASP and I am coming up with no answers.

As you can see below, I have three cells in the ComboBox, and I have no problems loading the combobox items not bound to asp objects.  The problem is that I am unable to bind values to the nested asp:CheckBox and asp:TextBox.

The text in the section <%#  DataBinder.Eval(Container, "Value")%> is all black, not three tone as is normal in VS2010.
It's almost as one cannot bind data to ASP items in an ItemTemplate.  Is that correct?

Here is the ASP.  If this is possible, what am I doing wrong?

Thanks in advance!