Hello again, I found an error, is as follows, have 2 columns in a DataGrid control multicombobox in the first 2 columns show the control in the datagrid multicombobox and the second control sample 3 columns, the error occurs when entering edit mode, I explain the steps:

multicombobox first entrance, is running normally, in the event CellBeginEdit admission the following code:


this code is executed to perfection, after having entered the first multicombobox, I will enter the second column which contains the second multicombobox, as I said earlier this control contains 3 columns and have the following code on the previous event:
              
this code sends me an error in the last line tells me that the control contains 3 columns but not 2, not recognized by the third, although I corrected the table which has 3 columns basa if, in my opinion this is wrong occasions because the control contains 2 columns of another multicombobox in the first column of my datagrid and glass that the error only occurs if the first entry in Edit mode in multicombobox that contains 2 columns, but only if that income contains 3 columns works as if nothing happened, I hope I can help with this error and thank you for all the help I provide.

Edit: Giving hope to understand, I do not speak English well.

 1. Alt-Down key does not drop down the Calendar (look-up feature) like .Net's DataTimePicker and ComboBox and even Telerik's own RadComboBox does.

2. Up / Down keys do the same as the Left / Right keys (i.e. previous / next day) on the Calendar vs. "physically" "up" and "down" in the Calendar grid like .Net does.  It's acting as if you're still in Spin mode in the TextBox part of the Control.

3. Page Up / Page Down keys do nothing vs. previous / next month like .Net does.

4. Ctrl-Page Up / Ctrl-Page Down do nothing vs. previous / next year like .Net does.

I could not find any alternate keys that perform the above actions.  Is there a way to override / add to the navigation keys?

Telerik Q1 2009 (v2009.1.9.414), VS 2005 (v8.0.50727.762 SP.050727-7600), XP SP3 on Core2Duo 2.99GHZ with 3GB.

I'm trying to solve a couple of problems with using a combobox within my RadGridView and not sure if I have taken the most appropriate methods. So in either scenario, the code below might help someone else, but if this is not the way it was intended or of I'm missing something please let me know. I would much prefer to have all the combobox cells show the combobox live instead of when I "hover" or "click" on them.

Hello,

The example posted here

http://www.telerik.com/community/forums/winforms/ui-controls/drop-and-drag-between-two-listbox.aspx

only allows single listboxitem moves. If I set the mousedown event to be





The listbox does not select the proper values.

Is there a way you can drag multiple values?

Thanks

-Matt

Hi,
I am using check box column to select row.
In fact when the check box is selected, I am storing the DataBondItem of checked row in an Arraylist.

The constraint here is, at a time only one check box has to be checked.
When the next row is checked. The privious check box should be unchecked.

The above is the total functionality.

I am using, BeginEdit and ActiveEditorValuechanged event to perform the above functionality.

The problem here is I am getting 'Object Reference Error' once in a while.

Can anybody suggest better way to obtain the above functionality ?

Current Code for reference :

 void radGrid_CellBeginEdit(object sender, GridViewCellCancelEventArgs e)
        {
            currentRowIndex = e.RowIndex;
            CurrentRowDataItem = this.radGrid.Rows[e.RowIndex].DataBoundItem;

            try
            {
                CurrentRowDataItem = this.radGrid.Rows[e.RowIndex].DataBoundItem;
                if (radGrid.Columns[e.ColumnIndex] is GridViewCheckBoxColumn)
                {
                    //When the editor is clicked properly
                    if (radGrid.ActiveEditor != null && radGrid.ActiveEditor.Value != null)
                    {
                        //create handler for active Editor
                        radGrid.ActiveEditor.ValueChanged += new EventHandler(ActiveEditor_ValueChanged);
                    }
                }
            }
            catch { }
        }

        void ActiveEditor_ValueChanged(object sender, EventArgs e)
        {
            //Only when the value is not null
            if (radGrid.ActiveEditor != null && radGrid.ActiveEditor.Value != null)
            {
                //remove the handler, because next time when the editor is clicked new handler wil be created
                radGrid.ActiveEditor.ValueChanged -= new EventHandler(ActiveEditor_ValueChanged);
                try
                {
                    //Here check the any row's check box selected in the Grid or not.
                    if (this.selectedRows != null && radGrid.ActiveEditor != null)
                    {
                        //current data item
                        object item = radGrid.CurrentRow.DataBoundItem;

                        if (radGrid.ActiveEditor.Value.ToString().ToLower() == "true")
                        {
                            this.selectedRows.Clear();
                            this.selectedRows.Add(item);

                            if (PreviousRowDataItem == null || previousCheck == -1)
                            {
                                //previousCheck = currentRowIndex;
                                PreviousRowDataItem = this.radGrid.CurrentRow.DataBoundItem;
                            }
                            
                            //set current index of previously selected row. It has to be checked and set because while sorting index may change
                            previousCheck = GetActualCheck(PreviousRowDataItem);

                            //Uncheck the previously selected
                            if (previousCheck != -1)
                            {
                                //set false if its true
                                if (radGrid.Rows[previousCheck].Cells[0].Value.ToString().ToLower() == "true")
                                {
                                    radGrid.Rows[previousCheck].Cells[0].Value = Boolean.FalseString;
                                }
                            }
                            //change the previous rowdata to current dataitem
                            if (currentRowIndex != -1)
                            {
                                PreviousRowDataItem = this.radGrid.CurrentRow.DataBoundItem;
                            }

                            if (OnSelectionChange != null)
                            {
                                OnSelectionChange();
                            }
                        }
                        //if uncheck clear the selected rows
                        else
                        {
                            this.selectedRows.Clear();
                        }

                        //if the Edit is finished, have to call this Default function otherwise the edit should not be commited
                        bool b = radGrid.EndEdit();
                    }
                }
                catch (Exception ex)
                {
                    Nexus.UI.BaseMdiParent.RaiseException(this, ex);
                }
            }
        }

Telerik has by far the best HTML editor on the market for ASP and as was noted by Telerik, its one of the best selling products that Telerik has. This begs the question - why is there not something similar provided by Telerik for WinForms? We are having to look at other companies to provide that functionality and the ones that are rich enough are not compatible in look and feel with Telerik. Tools like TXTextControl are very rich, but it would be good to see this kind of support in the Telerik suite to complete the offering - its a bit of a gaping hole.

Also, while the basic HTML-Like support is useful in things like the grid, it would be even more useful with just a few more formatting features such as Background-Color (so you could highlight a section of the text with a yellow background for example) or strikethrough (so you could show edits where a section of text was deleted). We are trying to mirror our web product which the Telerik Grid allows us to do and again are having to resort to third party alternatives.

Alternatively Rich Text would be an option in either case - the key is to be able to display the data with a few more options.

Are there any plans for either?

Hello,

I want to disable to modify the checkBox in the gridView. I make AllowEditRow à false but the user can always modify the checkBox.

Thanks in advance.

Hello Telerik,

hi all
i use radMDI form and show a radchild form
in radchild form i use a rad grid
i want rad grid clicked will show a dialog form and when the dialog form close will refresh gird in parent form
anybody help me
thanks