Hi,

I have installed 2019.1.115.40 trial and I am testing RadGridView and trying to achieve require results using ColumnGroups view. From the documentation I have achieved the following.

ColumnGroupsViewDefinition view = new ColumnGroupsViewDefinition();

view.ColumnGroups[0].Rows.Add(new GridViewColumnGroupRow());
view.ColumnGroups[0].Rows[0].ColumnNames.Add("CompanyID");

I have learnt that the "CompanyID" should be same as of the Column-Heading of the data-table (data-source) provided to the grid.

My question is: Is it possible if I can change this "CompanyID" text after data has been loaded into the grid.

Or is there anything I can do, as with the datagridview, we use Name property for binding and Text property for display purpose.

Attached image might help.

Thanks

Regards,

Hi,

Is it possible to change the design of the progressbar in the GraphicalViewItem? I would like to make it a bit bigger and change the color. 

thanks!

Sebastiaan

Hello,

I use multiselect in my gridview. I've found a strange behavior when I deselect a row among several selected rows.

For example,

Step 1, I've selected 4 rows by using Shift+left click. Here is the row stats.

Row Index | IsSelected | highlighted | isCurrent

    0            |     yes         |      yes       |      no

    1            |     yes         |      yes       |      no

    2            |     yes         |      yes       |      no

    3            |     yes         |      yes       |     yes

Step 2, I've deselected third row by using Ctrl+left click. In terms of display, nothing changes.
Row Index | IsSelected | highlighted | isCurrent
    0            |      yes       |        yes     |        no
    1            |     yes        |        yes     |        no
    2            |     no          |        yes     |       yes
    3            |     yes        |        yes      |       no

Step 3, I've deselected second row by using Ctrl+left click. In terms of display, 3 rows are highlighted, but actually 2 rows are selected.
Row Index | IsSelected | highlighted | isCurrent
    0            |     yes        |       yes       |       no
    1            |     no          |      yes        |      yes
    2            |     no          |       no        |      no
    3            |     yes         |      yes       |       no

I understand that current row and selected row are both highlighted. It's comprehensible to developer. But this behavior is not such friendly to software user.

I tried to disable highlight to current row by using row formatting. No luck.

To be more clear, I hope that only selected row can be highlighted.

Please help me. Thank you.

Hi Guys,

Im currently using winforms to run multiple displays through a RadDocking system and have been asked to refresh the displays at the highest frequency possible. And i have a couple of questions regarding this.

What "graphics engine" does the ui use if any, e.g. directX etc.

Are there any optimizations i might have missed for updating the controls at high frequencies for controls like chartViews, GridViews and any other common control general optimizations.

Cheers

Dan

I would like to use the ChartView control to create charts of time line data. The SQL database that I am querying against has a data point for every minute for thousands of counters.  For space savings, the application that stores the data does not create a record if the value of the data points is ZERO for that minute.  For this data, that is a savings of more than 75%.

When creating a line chart, is it possible to have RadChartView treat the missing data points with the value of ZERO?  In my test application, ChartView seems to approximate the missing values and simply draws a straight line between the two point that do have a value.  This is not an accurate representation of the data. What I need is from the line chart to go to 0 for the minutes there there is no data.

I've used other charting applications that have this capability.

Chris

Hello
I have some problem with displaying RadGroupBox on HDPI that host in UserControl/System.Windows.Form and must be AutoSize = true.
In our scenario, the RadGroupBox contains RadLabel and must change size depending on the size of the text. So we set AutoSize = true. However such RadGroupBox have incorrect font scaling in the header, the font becomes at least 2 times larger than it should be, and if GB is in the scrolling container (like in the example below) even larger. 

If groupbox is hosted in RadForm the bug is not reproducible. 

I use Telerik 2018.3.1016.20 with .Net 3.5 
I very much rely on your help and advice.

Here are examples of my code and screenshots from different DPI. 

100% (Form) https://c2n.me/3Z4oYcS
100% (RadForm) https://c2n.me/3Z4p2L0
200% (Form) https://clip2net.com/s/3Z4pjSv
200% (RadForm) https://clip2net.com/s/3Z4pbV0

In native WinForm forms, a property called AutoValidate can be changed to EnableAllowFocusChange to allow users to continue to other controls if validation fails for an errorProvider.

I am trying to mimic this behavior with radGridView. Currently, users are unable to move onto other cells or rows, or other controls outside of the gridView until they input correct data into the cell.

I want to be able to allow the user to work on other things, add rows, edit cells on a new row or an existing row, etc without forcing them to input something just to get rid of the validation. Only at the end of the process would I loop through all controls and cells to see if an error exists, and remind the user before they can continue on.

This is so that the user doesn't put in erroneous data into the cell just so they can move on. For example, if they do not know what the account code is for an item, they would have to ask someone else and this may take some time. They should be able to work on other things on the form in the mean time.

I've tried cancelling the editor and calling EndEdit on the current active editor, but this isn't working. Users are still locked in on a cell if validation failed. How do I allow the user to get out of the cell even if an error exists?

See below on what I have tried:

   if (e.Row is GridViewDataRowInfo)
                    {
                        if (detailValidation.IsEmptyInput(((string)e.Value), out errorMsg) || (!detailValidation.IsValidDecimalFormat(((string)e.Value), out errorMsg)))
                        {
                            e.ActiveEditor.EndEdit();
                            e.Cancel = true;
                            var test = e.ActiveEditor as RadTextBoxEditor;

                            currentCell.BackColor = Color.FromArgb(255, 221, 221);
                            ((GridViewDataRowInfo)e.Row).ErrorText = errorMsg;
                            
                           
                        }
                        else
                        {
                            ((GridViewDataRowInfo)e.Row).ErrorText = string.Empty;
                        }
                    }