Questions on UI for WinForms Forum

3 answers

77 views

Referring to columns in a typesafe manner

I've run into a number of times now where I find myself having to refer to a column by its name, which rubs me the wrong way; for example, the following snippet to run through and check whether or not all of the selected cells are in the same column:

allDataCells = true;

foreach (GridViewCellInfo cell in commandGridView.SelectedCells)

{

if (cell.ColumnInfo.Name != "columnData")

{

allDataCells = false;

break;

}

It bugs me that I'm using the text name rather than the actual column variable. I know, in my example scenario, that the column variable is actually "gridViewTextBoxColumn8" (which could be a better name, I know).

Other than comparing on the name variables, which is a little better:

gridViewTextBoxColumn8.Name == cell.ColumnInfo.Name

...is there a "good" way to do this? When given a GridViewCellInfo item, what's the type-safe and typo-safe way to compare the column?

Thanks!
Dave

GridView

answered on 01 Jul 2011

1 answer

145 views

Clone GridViewDataColumn

Is it possible to clone a GridViewDataColumn?

GridView

answered on 01 Jul 2011

2 answers

63 views

Newbie Asks, "How do I select a theme for a control?"

I am just starting to work with the window form controls. I am using the Rad Page View control (Backstage View). Working with the designer, I only have these options under ThemeName (Reset, ControlDefault).

How do I enable the other prepackaged themes? I think I can use one of the pre-packaged themes for my needs, I just can't find the switch.

Thanks for the help.

Tim

General Discussions

answered on 01 Jul 2011

1 answer

119 views

ExportToExcelML Freeze Column

Hello,

I am exporting the contents of a RadGridView to an Excel file and would like to freeze (or pin) the grid header and first column in the Excel file. I am aware that RAD ASP.NET controls can do this, but am unaware of how this can be accomplished with WinForms.

I have attempted setting the the "IsPinned" value for these rows/columns to true, but this does not affect the Excel file. Nor are there any options or events on either the grid or the ExportToExcelML object.

Please let me know as soon as possible, my deadline is drawing very near.

GridView

answered on 01 Jul 2011

5 answers

228 views

ExportToExcelML.RunExport exception

Hello,
I need to export radGridView into xls file throught ExportToExcelML. For these puprose I use this code

    
            SaveFileDialog saveDialog = new SaveFileDialog(); 
        
            saveDialog.DefaultExt = "xls"; 
        
            saveDialog.Filter = "Excel (*.xls)|*.xls"; 
        
            saveDialog.OverwritePrompt = true; 
        
            saveDialog.CreatePrompt = true; 
        
            if (saveDialog.ShowDialog() == DialogResult.OK) 
        
            { 
        
               if (string.IsNullOrEmpty(saveDialog.FileName)) 
        
               { 
        
                   MessageBox.Show("Please enter a file name."); 
        
                   return; 
        
               } 
        
               ExportToExcelML export = new ExportToExcelML(); 
        
               export.HiddenColumnOption = ExportToExcelML.HiddenOption.ExportAsHidden; 
        
               export.HiddenRowOption = ExportToExcelML.HiddenOption.ExportAsHidden; 
        
               export.RunExport(bestellungRadGridView, saveDialog.FileName, ExportToExcelML.ExcelMaxRows._65536, true);                 
        
            }

But on the last line of code (export.RunExport(....)) I get the exception "Worksheet collection cannot be empty." and the inner exception is empty.
Is there some problem in my code or it is some general problem of ExportToExcelML class?

Thank you for your response
Petr

GridView

answered on 01 Jul 2011

0 answers

138 views

ConditionalFormattingObject with CheckBox in row

Hi,

I'm having a little problem, I have a RadGridView where the startup form I do:




ConditionalFormattingObject c2 = new ConditionalFormattingObject("Test_A", ConditionTypes.Equal, "true", String.Empty, true);
            c2.CellForeColor =
            c2.RowForeColor = Color.Blue;
            gdvAuditoria2.Columns[NomesColunasGridAuditoria.Validar].ConditionalFormattingObjectList.Add(c2);
            gdvAuditoria2.Columns[NomesColunasGridAuditoria.Rejeitar].ConditionalFormattingObjectList.Add(c2);
 
            ConditionalFormattingObject c3 = new ConditionalFormattingObject("Test_B", ConditionTypes.Equal, String.Empty, String.Empty, true);
            c3.CellForeColor =
            c3.RowForeColor = Color.Black;
            gdvAuditoria2.Columns[NomesColunasGridAuditoria.CodAuditoria].ConditionalFormattingObjectList.Add(c3);
 
            ConditionalFormattingObject c1 = new ConditionalFormattingObject("Test_C", ConditionTypes.Equal, "true", String.Empty, true);
            c1.CellForeColor =
            c1.RowForeColor = Color.Red;
            gdvAuditoria2.Columns[NomesColunasGridAuditoria.Substituido].ConditionalFormattingObjectList.Add(c1);

More formatting that is being changed only when changing line.

How can I do to change a value after a row with checkbox that formatting is applied?



Marcelo

GridView

asked on 30 Jun 2011

4 answers

243 views

Updating appointments with TableAdapters

Hello,

I have a form that uses databinding using Dataset/TableAdapter for the Appointments. I have one table - Appointments. If I were to use a button to update the dataset to persist the data, will I still need to hit the "Ok" button before I hit the Update button? I am using the Timeline view and it displays the appointments from table correctly. However, after dragging to new start and end date, I have to select "All day event" then hit Ok and then the update button before my changes are saved.

What am I doing wrong?

Thanks.

Scheduler and Reminder

answered on 30 Jun 2011

1 answer

83 views

toolwindow not docking

Hi,
I have a problem when in my application I load a different layout from the default one:
If I have a project opened, his toolwindow is correctly docked under the ribbonbar and also the other toolwindows with the editing tools.
If I load a different layout for the toolwindows with the editing and the main toolwindow with the project is opened, the main toolwindow is automatically hidden.
I tried to force the main toolwindow to stay docked after the layout changes, but the only dock state allowed after the change is a floating toolwindow.
Is there a way to force the main toolwindow to stay docked after the layout change?

Thank you in advance.

Dock

answered on 30 Jun 2011

6 answers

361 views

Telerik.Wincontrol.UI.RadForm with Desert Theme

Everytime I create a Form with the Telerik RadForm then assign the Desert theme to it, it looks partly loaded only when I launch the application (As per screenshot).
If you look at the borders, they look blacked out.
I use Telerik Winforms 2011.1.11.419
It only seems to happen with Desert theme, and on all forms (even with no code in it).

Form

answered on 30 Jun 2011

2 answers

204 views

Grid combobox value changing

Hi All,

I have a grid, which contains some combobox column.

Is there a way to catch the moment, when the user selected a new item from the dropdown list of a combobox column, but does not leave the column? (e.g.: similar to the SelectedIndexChanged event of the raddropdownlist control).

Best regards,

Peter

GridView

answered on 30 Jun 2011