Questions on UI for WinForms Forum

1 answer

148 views

I'm getting this odd error popping up when I'm using the radGrid and defining my own columns.

I've got the data bound to a business object, and all seems well, text gets updated etc.. until I bumped into trying to use an int in the grid. Using the designer generated code based off the object, I came up with:

            colText = new GridViewTextBoxColumn(); 
            colText.DataField = "SheetWidth"; 
            colText.DataType = typeof(int); 
            colText.HeaderText = "Width"; 
            colText.UniqueName = "SheetWidth"; 
            colText.MinWidth = 75; 
            uiSheets.MasterGridViewTemplate.Columns.Add(colText); 

Seemed like a pretty standard way of doing things. The grid loads up fine, displays the values, etc, however if I try to EDIT the values, it errors out with this error:

StackTrace  "   at System.ComponentModel.ReflectPropertyDescriptor.SetValue(Object component, Object value)\r\n   at Telerik.WinControls.UI.GridViewData.PushValue(Int32 boundColumnIndex, Int32 columnIndex, Int32 rowIndex, Object value)"    string 
Message "Object of type 'System.String' cannot be converted to type 'System.Int32'."    string 

Not only that, but it works for the second int column just fine. Literally identical columns, just different names, and yet one works as normal, and the other just refuses to take any value at all, just errors out.

It's one of the more irritating errors out there - if you guys haven't seen it before, I'll see if I can create a project for it.

GridView

answered on 12 Dec 2007

5 answers

261 views

Fixed tool bar

Hi Telerik Team,

I would like to know how can I recreate the same tool bar than in VS 2005 (i.e. Solution Explorer Panel). I want to disappear the line of points to the left and make the tool bar fixed inside the docked panel.

Thanks in advance & regards,

Julio

Toolstrip (obsolete as of Q3 2010)

answered on 12 Dec 2007

2 answers

229 views

Listbox Horizontal Scroll

I have a list box that I do not want the horizontal scroll to ever show. I want the vertical if it is needed though. How can I force the horizontal to never show? I tried setting Visibility to hidden, but it still shows.

Thanks,
C

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 12 Dec 2007

4 answers

221 views

Grouping Header Text

Hi,

I've got a problem with the format string of the group by expression, since i've upgraded to Q2 2007 SP1, it doesn't take it.

Is there something to do ?

Thanks

Dom

GridView

answered on 12 Dec 2007

4 answers

521 views

Value of check box

How do I get the value from a check box after it has been clicked? The code below in the ValueChanged event seems to return random results. Note that "InitialAssignee" is the column name that I happen to be clicking on.

        private void radGrid_ValueChanged(object _sender, EventArgs _e)  

        {  

            MessageBox.Show(radGrid.MasterGridViewInfo.CurrentRow.Cells["InitialAssignee"].Value.ToString(), "");  

        }

Thanks.

GridView

answered on 11 Dec 2007

2 answers

116 views

Ampersands in RadGridView (Windows)

The data that is being bound to the RadGridView control in my WinForms app has ampersands in it, and the are being changed to underscores per the normal Windows hot key marking scheme (i.e. &File results in File, with the F underlined). Can this be shut off? Or do I need to handle each row as it's inserted?

Thanks.

GridView

answered on 11 Dec 2007

4 answers

263 views

ListBox styling

I have a ListBox that before without any styling it had an attractive background (I don't remember if it was white or a blue or what) and the selected item would have nice highlighting. After the Beta, the list has a gray background and the highlighted item looks the same as it used to.
It appears that a style was left out possibly? Or if it is meant to be a gray background, I'll just set it manually to something nicer. I have a feeling it was a mistake or oversight though.

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 11 Dec 2007

1 answer

177 views

Text property not updating

The text property of a dockpanel is not updated when set at runtime. If I change the Text property of a dockpanel at runtime only the "caption" is updated and not the text on the tab.

If I dock the panel and click the tab it's text is updated but then the tab is not wide enough to show the complete text. Undocking the panel again will show the text correctly.

How do I make the text update properly at runtime?

Thanks!

Dock

answered on 11 Dec 2007

1 answer

148 views

DragDrop to Other Controls

In the ASP.Net version of the RadTreeView, you can drag a node not only onto another RadTreeView, but also onto other controls as long as you set up the right JavaScript to handle it.

In the WinForms version, is it possible to drag a node onto another control? I tried setting the AllowDrop flag on the destination control to true, but when I drag a node over it, it has a little "no" cursor.

Treeview

answered on 11 Dec 2007

1 answer

412 views

GridView Selected row

Hi there,

I have a Grid in a win app and want to select the current row when the user refreshes the grid so use:

radGridView1.Rows[someIndex].IsSelected = true;
radGridView1.GridElement.Update(false);

The above code kinda works but the first row of the grid is always selected as well. More than likely i'm missing the obvious.

Cheers
J

GridView

answered on 11 Dec 2007