I implemented an Outlook Web Access type mailbox using RadGrid eons ago and have only had to perform minor maintenance over the years. It is currently using Q1 2011 controls and has been limited to single row selections. I capture the client side rowclick event and perform a callback to the server passing the newly selected index as an argument. Server side I reset the colour of the previously selected row (grid.SelectedItems[0]) and unselect it, then darken the colour of the newly selected row (the index of which was passed as an argument in the callback), selecting it server side.

My client now wants to enable multirow select (to delete multiple emails, for example). I would of course like to do this with as few changes as possible, but during the callback, the server does not know whether the newly selected row is part of a multiple selection or a single selection, so it does not know whether the previously selected row needs to be unselected or not. Is there any argument that I can pass to the server as part of the callback which indicates whether the ctrl key was depressed at the time of the new selection (or, even better, an attribute of the grid that shows which is the current selection "mode")? If not, what's the best way of reading all selected row indexes client side so that I can pass an argument array to the server?

Many thanks.

Hi,

I have tried implementing multiple comboboxes (2 comboboxes) from example
http://mono.telerik.com/Combobox/Examples/Functionality/MultipleComboBoxes/DefaultCS.aspx

Its working fine. Now If I set the selected value like

FirstcomboBox.SelectedValue = somevalue

for 1st combobox (on page load) I want to fire event to load the 2nd combobox currently which is not working. Do I need to set any property for this?


Thanks,
Balaji

hi,
i have radgrid whic contains checkboxes, this rad grid is placed inside an xmlhttppanel whic is placed inside an ajax panel. A button is placed inside the ajaxpanel ,like shown above
no under the 'OnClick' (server side) event of the button am tracking the selected checkboxes, this doest works for the first button click. but it works after the first click ... any solutions..?

I have created a RadGrid dynamically and added it to a placeholder at Page_Init event.

I'd need to add a custom button to the CommandItem and for this I've tried many scenarios and none of which has worked properly:

1) I added the custom button at RadGrid_ItemCreated event. The button appears. When it's clicked, it posts back, however, its click event handler is never raised. why? how to fix it?

My button is a normal ASP.NET button:

private Button CreateExportToPdfButton()
        {
            var result = new Button();
            result.ID = "btnExportToPdf";
            result.Click += ExportToPdfButtonClick;
            result.CssClass = "rgExpPDF";
            result.CommandName = "ExportToPdfCustomCommand";
            result.Attributes["title"] = "Export to Pdf";
            return result;
        }

Also I tried managing it in the ItemCommand event when the button is clicked: 

protected void RadGrid1_ItemCommand(object sender, GridCommandEventArgs e)       

{

    if(e.CommandName == "ExportToPdfCustomCommand")

    {

        //my code here

    }

}

but ItemCommand event doesn't get raised either when the button is clicked.

2) I added the custom button at RadGrid_MasterTableView_Load. The button appears and when it's clicked, it posts back and click event is raised as expected which is great. As soon as sorting is enabled on the RadGrid and a column header is selected to be sorted, the sorting happens however my custom button disappears. Why? how to fix it?

3) On RadGrid_MasterTableView_Init; behaves similar to #2

4) On RadGrid_MasterTableView_PreRender; behaves similar to #1

5) On RadGrid_Init, behaves similar to #2

6) Another possible approach comes to mind is to create a new CommandItemTemplate: http://www.telerik.com/help/aspnet/grid/grdcommanditemtemplate.html

in which case, the click event and itemcommand events are raised properly.

But there is an issue with this approach that it would be more complex as I'm using the built-in Export to Word and Excel functionalities of RadGrid currently. so not sure how to add these 2 to the CommandItemTemplate this way?

I'd rather making the previous approaches working if possible.

Your help is very much appreciated on any of these approaches.

Hello,

I try to implement custom filter control like here. I put a textbox and button into template column and everything now shows fine in filter row. But I need to set custom button which will contain fully custom filter menu. I want it to display when I press the button and send a filter command  when menu item is selected. But right now I can't event start built-in filter menu. I tried to add button onclick event like on your demo page, i.e.
$find("RadGrid1")._showFilterMenu("RadGrid1_ctl00", "ContactName", event); return false; __doPostBack('RadGrid1$ctl00$ctl02$ctl02$Filter_ContactName','')
but I always get a JS error  here:

this._buildFilterMenuItemList(this._filterMenu,f._data.FilterListOptions,f._data.DataTypeName,f._data.CurrentFilterFunction,f);

If I translate it to English, it's going to be like "Cannot get a value for _data; it's not defined or has a null value". Something like this.
So I have 2 questions:
  a. Is this possible to display built-in filter menu when clicking on custom button inside a filter template?
  b. Is this possible to built a fully custom menu and make it work the same way as built-in?
Thank you.

Hi,

I am trying to load my second combobox based on the item selected from first combobox. The code goes something like this

Aspx page

<telerik:RadComboBox ID="DepartmentDD" runat="server" OnItemsRequested="DepartmentDD_ItemsRequested" OnClientSelectedIndexChanging="LoadSection" OnClientItemsRequested="ItemsLoaded" width="175px"/>


<telerik:RadComboBox ID="SectionDD" runat="server" OnItemsRequested="SectionDD_ItemsRequested" OnClientItemsRequested="ItemsLoaded" width="175px" />   


function ItemsLoaded(combo, eventarqs) {

    var secCombo = $find("SectionDD");
    if (combo.get_items().get_count() > 0) {
        combo.set_text(combo.get_items().getItem(0).get_text());
        combo.get_items().getItem(0).highlight();
    }
                    combo.showDropDown();
}


function LoadSection(combo, eventarqs) {
    var seccombo = $find("SectionDD");
    var item = eventarqs.get_item();

    seccombo .set_text("Loading...");
    seccombo .requestItems(item.get_value(), false);
}


---------

CS page


 protected void Page_Load(object sender, EventArgs e)
{

    LoadDepartment();

}
      

    protected void LoadDepartment()
        {
        //Loads department to DepartmentDD
        }


        protected void DepartmentDD_ItemsRequested(object o, RadComboBoxItemsRequestedEventArgs e)
        {
            LoadDepartment();
        }

        protected void SectionDD_ItemsRequested(object o, RadComboBoxItemsRequestedEventArgs e)
        {

            LoadSection(Convert.ToInt16(deptid));
        }

        protected void LoadSection(int deptId)
        {
            
          //Loads section to SectionDD
        }


The problem is when I reach SectionDD_ItemsRequested after selecting item from first combo the control is firing OnInit method which loads the deparment againg :(.

Where am I going wrong?

Hello,
Can you please tell me how do I exactly call fireCommand on filtering? According to this help page I have to pass 4 parameters, like
fireCommand("Filter", colName, expression, function).
According to some pretty old forum post, I have to pass 2 parameters, like
fireCommand("Filter", colName + "|" + expression + "|" +  function)
I tried everything but I always get Index out of bounds error. Page_Load event fires correctly  but it never comes into ItemCommand event.
Calling mastertableview.filter() function will not fire postback. So what should I do to initiate filtering from client side?

I came accross this post, which seems to be the issue I am having, my question is how do you do the following to fix the problem?

You will need to be sure that the chart httphandler is served by the same machine, which served the page.

Posted on Feb 17, 2010

Looking for a way to access or store an object from a Linqdatasource foreign key.

I have a Radgrid using a Linqdatasource with a nestedviewtemplate and a RadTabStrip/RadMultiPage. I would like to populate a RadGrid on one of RadMultilPage with the foreign key data from the Master RadGrid.

Is this possible?

Hi,

I am using the telerik.Web.UI.dll with version 2010.1.415.35.

I am having problem with the Rad Grid filter menu in this version. When ever I click on filter menu it firstly it shows only "Contains" button
and secondly, after clicking on filter button it gives a java script error of parsing as Parsing problem for Enum "Sys&Enum&Parse"(typeof()). something like this.

Please note that, earlier I was using the telerik DLL version of 2008 which I then replaced with 2011.2.712.35. This worked fine with no problem except with change in design. Now, I have removed this and replaced it with 2010.1.415.35 and the above error has occurred.

Can anyone help me or suggest me on this issue. Its urgent.

Thanks.