I have created a number of usercontrols that I want to dynamically add to
dockpanels based on user input -

It's all straightforward enough but the users have varying screen sizes
and some of the controls have a fair amount of height.
My problem is I cannot get auto scroll bars when the contents of the docking
panel exceed the boundaries. In your demo apps I see some of the windows
do gain scroll bars when the contents exceed although not all do.

Is there a property / method for the dockpanel that automatically creates scrollbars
based on the contents in the dockpanel ? Or do we have to implement this
ourselves manually ?

I'm trying to figure out a way to have a ContentPanel size itself automatically based on the amount of text in a Label control.  I've tried various ways of automatically sizing the Label in hopes that the ContentPanel would enlarge to accommodate the content, and when that failed I tried programmatically changing the size of the GroupElement to match the size of the label.  None of my attempts has been successful.

Can anyone give me some tips on whether this is possible and if so how to accomplish it?

Thanks,
Josh

Hi is there a way to stop the beeps when tabbing around a gridview?

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);
                }
            }
        }

I am using checkbox column in my grid.
At a time only one checkbox can be in selected state.
how can i do that?

I need to have a windows program display a crawl across the bottom of the window. Would RadRotator do this? I need to have the crawl just run without any human intervention.

TIA - Jeff.

I have a reasonably complex request for the GridView control, is it possible to group some rows but not others? and also to have it ordered so i have some of my ungrouped rows above and some below the grouped items?

i have a fixed number of rows... it'll look something like this .. (each row has 3 sets of checkboxes after the below text).

- create (ungrouped)
- Review (Group Header)
        - Send for Review
        - Fail Review
        - Pass Review
        - Cancel Review
- Approval (Group Header)
        - Send for Approval
        - Fail Approval
        - Pass Approval
        - Cancel Approval
        - Bypass Approval
- Delete (ungrouped)
- Withdrawn (ungrouped)
- Review (ungrouped)

Hope that is clear to you.

Cheers :)

Hi dear
i have one treeview with somw static nodes . for examples : node1 , node2 , node3
now i want to map some records from database in node2`s childs .
i want to do it with using dataset .  and binding . but binding 1 node's child
in basic we can read database records by records and add one records to treevies in one step manually . but it works very slow !
with mapping records to treeview via dataset i think speed is so better .
can u help me ?

Hi,

I am using Rad Grid View of telerik version  8.2.0.0.
Sometimes I get an exception if I call 'best fit' on last column via context menu. It is not reproducible every time and here is complete log

 

System.NullReferenceException:
Telerik.WinControls.UI.GridHeaderCellElement.menuItemBestFit_Click(Object sender, EventArgs e) bei Telerik.WinControls.RadItem.OnClick(EventArgs e) bei Telerik.WinControls.UI.RadButtonItem.OnClick(EventArgs e) bei Telerik.WinControls.UI.RadMenuItemBase.OnClick(EventArgs e) bei Telerik.WinControls.UI.RadMenuItem.OnClick(EventArgs e) bei Telerik.WinControls.RadItem.DoClick(EventArgs e) bei Telerik.WinControls.RadItem.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args) bei Telerik.WinControls.RadElement.RaiseRoutedEvent(RadElement sender, RoutedEventArgs args) bei Telerik.WinControls.RadItem.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args) bei Telerik.WinControls.RadElement.RaiseRoutedEvent(RadElement sender, RoutedEventArgs args) bei Telerik.WinControls.RadElement.DoMouseUp(MouseEventArgs e) bei Telerik.WinControls.ComponentInputBehavior.OnMouseUp(MouseEventArgs e) bei Telerik.WinControls.RadControl.OnMouseUp(MouseEventArgs e) bei System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) bei System.Windows.Forms.Control.WndProc(Message& m) bei System.Windows.Forms.ScrollableControl.WndProc(Message& m) bei Telerik.WinControls.RadControl.WndProc(Message& m) bei Telerik.WinControls.UI.RadPopupControl.WndProc(Message& m) bei System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) bei System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) bei System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) # ShowThreadExceptionDialog ---> [L-0] >>> Void HandleThreadException(System.Object, System.Threading.ThreadExceptionEventArgs) >>> Void OnThreadException(System.Exception) >>> Void WndProcException(System.Exception) >>> Void OnThreadException(System.Exception) >>> IntPtr Callback(IntPtr, Int32, IntPtr, IntPtr) >>> IntPtr DispatchMessageW(MSG ByRef) >>> Boolean System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32, Int32, Int32) >>> Void RunMessageLoopInner(Int32, System.Windows.Forms.ApplicationContext) >>> Void RunMessageLoop(Int32, System.Windows.Forms.ApplicationContext) >>> Void Run(System.Windows.Forms.Form)

Can I handle this issue at my end? Please let me know.

Regards,
Renu

This issue, as far as I can see, is totally GUI based. I don't think you need any code to re-create it.

When there is a column (or two) in the "group by" panel, and you hold and slightly move one of the columns, but not enough to actually change the grouping, one of the group header's text will be cleared. In my case I have used the AutoGenerateColumns feature along with SaveLayout and LoadLayout. I am on Windows Vista. Even in this example application (for a different thing), the issue is still shown.