Questions on UI for WinForms Forum

4 answers

338 views

Seems that since I've upgraded the ExportToExcelML command has been failing on me. It creates a file no problem, but I'm getting an "Excel cannot open the file 'blah.xlsx' because the file format or file extension is not valid." error.

Here is what I'm doing (and this worked prior to the recent upgrade)

void btnExportExcel_Click(object sender, EventArgs e)

{

this.SaveFileDialog.Filter = "Excel Workbook (*.xlsx) |*.xlsx|Excel 97-2003 Workbook (*.xls)|*.xls";

if (this.SaveFileDialog.ShowDialog() == DialogResult.OK)

{

ExportToExcelML exporter = new ExportToExcelML(this.dgResults);

exporter.HiddenColumnOption = Telerik.WinControls.UI.Export.HiddenOption.DoNotExport;

exporter.ExportVisualSettings = true;

exporter.SheetName = this.GridTitle;

if (Path.GetExtension(this.SaveFileDialog.FileName) == ".xls")

{

exporter.FileExtension = "xls";

exporter.SheetMaxRows = ExcelMaxRows._65536;

}

else

{

exporter.FileExtension = "xlsx";

exporter.SheetMaxRows = ExcelMaxRows._1048576;

}

try

{

this.lblReady.Text = "Exporting to Excel...";

this.StatusStrip.Refresh();

using (new UtilLib.Winforms.WaitCursor())

{

exporter.RunExport(this.SaveFileDialog.FileName);

}

catch (Exception ex) { UtilLib.Winforms.Feedback.DisplayError(ex); }

finally

{

this.lblReady.Text = "Ready";

}

Anyone else experiencing the same issue?

GridView

answered on 05 Jul 2013

3 answers

283 views

RadWaitingBar in RadStatusStrip issues...

Hello...

I am attempting to get a RadWaitingBar to work in a RadStatusStrip and having some issues... my status strip is build like this...

RadWaitingBar (200px) | RadLabelElement (Spring) | RadLabelElement (200px)

I found the article of putting the RadWaitingBar in a RadHostItem at...

http://www.telerik.com/community/forums/winforms/statusstrip/radwaitingbar-in-radstatusstrip.aspx

and followed the instructions but still the center LabelElement is over-springing all the way to the left underneath the RadHost + RadWaitingBar...

I am building this entirely in code due to the RadHostItem...

    
            private RadWaitingBar waitingBar = new RadWaitingBar(); 
        
            private RadLabelElement _statusLabelElementCenter= new RadLabelElement(); 
        
            private RadLabelElement _statusLabelElementRight= new RadLabelElement(); 
        
            waitingBar.BeginInit();  
        
            waitingBar.Size = new Size(200, 16);  
        
            waitingBar.MinimumSize = new Size(200, 16);   
        
            waitingBar.MaximumSize = new Size(200, 16); 
        
            waitingBar.EndInit(); 
        
            statusLabelElementCenter.AutoSize = true; 
        
            statusLabelElementCenter.Margin = new System.Windows.Forms.Padding(1); 
        
            statusLabelElementCenter.Text = "Here is some really long text that shows how the controls are overlapped."; 
        
            statusLabelElementRight.AutoSize = false; 
        
            statusLabelElementRight.Size = new Size(200, 16); 
        
            statusLabelElementRight.Margin = new System.Windows.Forms.Padding(1); 
        
            statusLabelElementRight.Text = "Right Label"; 
        
            //WaitingBar in RadHostItem, RadHostItem in PanelElement, based 
        
            //upon suggestions in previous post. 
        
            RadStatusBarPanelElement stripPanel = new RadStatusBarPanelElement(); 
        
            stripPanel.Size = new Size(200, 16); 
        
            stripPanel.Padding = new Padding(0); 
        
            stripPanel.Children.Add(new RadHostItem(waitingBar)); 
        
            radStatusStrip1.BeginInit(); 
        
            radStatusStrip1.Items.Add(stripPanel); 
        
            radStatusStrip1.Items.Add(statusLabelElementCenter); 
        
            radStatusStrip1.Items.Add(statusLabelElementRight); 
        
            radStatusStrip1.SetSpring(statusLabelElementCenter, true); 
        
            radStatusStrip1.EndInit();

when I run this... I get the following (attached image).... as you can see, the RadWaitingBar is on top of the center LabelElement.

Any ideas on how to fix this?

WaitingBar

answered on 05 Jul 2013

1 answer

136 views

Display Custom Filed in RadScheduler

Hi,

I am Have problem regarding radScheduler in Windows Application.
ex: I have added custom Email filed in appointment dialoge box , now I want to show this custom email in main radScheduler window where all appointment are listed by day view , month view etc... i have see so many example related to custom field in RadScheduler, but in all example no one can display the custom Filed in main radscheduler window ...... Its Urgent Pls Help

Scheduler and Reminder

answered on 05 Jul 2013

3 answers

154 views

suppres row/cell receycling (Virtual mode)

Hello supportteam,

according to the article "Create pop-up user control for row editing" we implemented a UserControl acting as a roweditor, which is hosted in a RadMenuHostItem by a Custom cell - all works fine. As proposed in the example the editor control is instantiated in a RadGridView.CreateCell event handler.

Now the problem: When I remove a row from the grid and add a new one the CreatedCell handler will not be called, I guess because there is no need hence the grid receycles the removed row to display the new one (Virtual mode).

Is there a way to suppres "receyling" of gridrows, so CreatedCell is fired all the time I call RadGridView.Rows.AddRow? Performance is not a not problem as the the number of rows will be just a few.

Best regards &
Thanks for any advice,
Oliver

GridView

answered on 05 Jul 2013

16 answers

535 views

ListView DragDrop (and other questions)

I'm having trouble implementing DragDrop to sequence the ListViewDataItems. I've seen the forum entry from 2011 about enabling DragDrop and I voted for that feature. I see the DragDrop event in ListView but it doesn't seem to fire. Is this feature coming soon or am I failing to implement it correctly?

The attached picture should help clarify this. I also want to:
2. Hide borders on ListViews.
3. Use some type of panel (FlowLayoutPanel or Rad anything) where I can prevent a horizontal scrollbar from appearing but show the vertical scrollbar.
4. Put some kind of label above the ListView that implements the current theme (backcolor, backcolor2, backcolor3, backcolor4) like RadButton or the text area on the ToolWindow.
5. Control the location of text (and Images) on the ListViewDataItem so I can move it (them) to the right some x pixels.

Thank you,
Gary

ListView

answered on 04 Jul 2013

1 answer

119 views

RichRibbonBar Error on Save

Using the RichRibbonBar, I get an error any time I use the "Save" button. I don't get the error when using "Save As". This happens when using the QuickAccessToolbar or the File menu.

The error is "Object reference not set to an instance of an object." in this Sub on the line "Me.SaveDocument(button.Tag.ToString())"

Private Sub buttonSave_Click(ByVal sender As Object, ByVal e As EventArgs)

Dim button As RadButton = TryCast(sender, RadButton)

Me.BackstageControl.HidePopup()

Me.SaveDocument(button.Tag.ToString())

End Sub

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 04 Jul 2013

1 answer

309 views

Details View: Column Header Appearance

I put a ListView with ViewMode.DetailsView next to a GridView. I made one of the two columns not visible. I'd like the visible column's column header to have the same appearance (color) as the column headers in that GridView. How do I do that?

Thank you,
Gary

ListView

answered on 04 Jul 2013

1 answer

497 views

RadContextMenu item size/spacing

I am working with a RadContextMenu attached to a RadTreeView. When I am using the default theme, the spacing between the menu items is similar to menus in most Windows applications. When I switch to the Windows 7 theme (which I would like to use), the space between the menu items is much larger. Is there a way to modify the context menu spacing to be similar to the control default when I am using the Windows 7 theme? Do I have to create a custom theme?

.NET 4.0 WinForms application
Visual Studio 2010
Telerik 2013 Q2

ContextMenu

answered on 04 Jul 2013

1 answer

578 views

Combobox selected Index changed Event in GridView

sd

GridView

answered on 04 Jul 2013

2 answers

436 views

[Solved] How to Get all RadControls from the RadForm?

I need to get all the controls from the radform to get some properties and configure it in runtime.
The components i have in the form is:
- RadTextbox
- RadMulticolumnCombobox
- RadPageView
- RadLabel
- RadGridView.

How i can get all controls and childs in the form?

General Discussions

answered on 04 Jul 2013