Questions on UI for WinForms Forum

1 answer

130 views

Hi,

I have downloaded the trial version of the rad controls and tried installing the same in my home.

I face the following issue.

D:\Downloads\RadControls_WinForms_2010_2_10_713_trial.exe is not a valid Win32 application.

Attached the screen shot.

-Yuva

General Discussions

answered on 27 Jul 2010

2 answers

143 views

[Solved] Upgrading from Wincontrols Q1 2010 to Wincontrols Q2 2010

I'm not sure this question has been already asked but..
I have a pretty large Vb.net project that uses the combo box, listbox and TabStrip controls pretty heavily. The project is already just about halfway thru but these controls have been changed in the Q2 2010. So my question is, will the Upgrade wizard change the controls, replacing the old with the new, or, will I be forced to have to go into each of the forms replacing one with the other as shown in the videos.? Trying to get a handle on how much my Schedule may be adjusted with this change.
Thanks

General Discussions

answered on 26 Jul 2010

2 answers

191 views

[Solved] Rad Application Menu right-click

Hi,

I have a requirement to make RadApplicationMenu to open only by mouse right-click. How can I prevent mouse left button click and 'Enter' key pressing?

Thank you in advance.

ApplicationMenu

answered on 26 Jul 2010

1 answer

287 views

GridElement.BeginUpdate

Hello,

in Q2 2010 is GridElement obsolete. Is BeginUpdate also not necessary anymore (for the case that i am create manual multiple rows in code) ?

Regards,
Thomas

GridView

answered on 26 Jul 2010

1 answer

153 views

Prevent selection of cells

Hello,

i have implemented a method that prevent the selections of cells in the first 3 columns. this method works, but it is extreme slowly. This is my method. Is there a better way to prevent selection?

private void Event_SelectionChanged(object sender, EventArgs e)

{

GridViewCellInfo[] cells = (from GridViewCellInfo entry in

this.SelectedCells where entry.ColumnInfo.Index <

CurveContentGridView.FIRST_DATACOLUMN_INDEX ||

entry.RowInfo.Index == -1

select entry).ToArray();

for (int i = 0; i < cells.Length; i++)

{

cells[i].IsSelected = false;

}

GridView

answered on 26 Jul 2010

8 answers

299 views

Q2 Gridview Changes

I am trying to implement the new Q2 controls and am having the following issues with the GridView:

1) I have a routine that changes a regular GridViewTextBoxColumn to a GridViewCheckBoxColumn. Because in the previous grid, you couldn't just change the type of the column, I had to record the column index, remove it, create a new GVCBC and set the index of it. The index property is no longer settable.

2) I have a method that lets me programatically set the selected row. I used to say SelectedRows.Clear() and then Rows[x].Selected = true; Now the Clear() method is missing from the SelectedRows collection.

Thanks in advance,

Lars Solberg

GridView

answered on 26 Jul 2010

1 answer

155 views

adding gridviewcomboboxcolumn in datagridview

Hi

i would like to add the gridviewcomboboxcolumn in datagridview to get autocomplete functionality. i could not find a way to do this, can any body help me.

i have tried a lot and i cant change my orignal grid with the telerik one.

quick reply would be appreciated.

thanks.

GridView

answered on 26 Jul 2010

7 answers

606 views

[Solved] Doubleclick row in grid - ignore scrollbar?

Hi. I'm trying to do something straightforward but getting caught on an odd problem. I want to pop open a dialog when a user double-clicks on a row in a grid. Not seeing an event specifically for "double-clicking on a row", I am hooking RadGridview.DoubleClick. When the event handler is called, I check to see if just one row is selected, and if so, I pop open my dialog.

However, I am having a problem where if the user selects a row (single-click), then double-clicks the scrollbar I cannot distinguish that the user didn't double-click on a row. How can I prevent this from happening?

I think I need one of the following:
* A better event to hook
* A way to programmatically figure out if the user double-clicked on a row
* A way to programmatically figure out if the double-click is on the scrollbar so that I might ignore it (NOTE: the doubleclick event does not provide the mouse coordinates, so this is hard)

I'm running VS 2008, .NET 3.5, and Telerik WinForms controls 2010 Q1 SP2 all on Win 7 x64.

Thanks,
Patrick

GridView

answered on 26 Jul 2010

1 answer

317 views

Hiding Checkboxes for NULL DataSet entries..?

I have a standard WinForms DataSet being populated programatically (but bound at design-time to a discrete DataSet control on the .NET form). My question is simple: how can I hide (for example) the 2nd and 3rd checkboxes if these values are NULL values in the data for that row? If they are non-NULL, I want to present the checkbox and have it be editable. However, if they are NULL in the dataset I don't want the checkbox there at all.

I can't figure out a simple (or even non-simple) way of hiding these NULL-representing checkboxes. I have tried intercepting the cell formatting event programatically but setting the various e.CellElement._ values to hide/indicate invisible/set ShouldPaint to false/etc.. All efforts to hide these NULL-backed checkboxes seem to be completely ignored by the RadControls GridView. The GridView checkbox column just treats NULL as "false" and allows the user to click them / check them to "true" anyway.

Is there a simple way to conditionally NOT display the checkbox in a RadControls GridView checkbox column, so I can hide/show them for some rows but not for others..? Help..?!

Many thanks in advance,

Ralph

GridView

answered on 26 Jul 2010

2 answers

134 views

GETTING ERROR 'gridview already declared'

I am doing a project using sql and whenever i run the form it says "gridview already declared' but i declared it only once.... plz help

GridView

answered on 26 Jul 2010