Questions on UI for WinForms Forum

1 answer

159 views

I am trying to use your combo box that when it is dropped down the contents displayed show two lines of data for each row, but I cannot find out what properties I need to set.

You can see an example found on this page http://www.telerik.com/products/winforms/multicolumncombo.aspx under "Rotating Items on Double-Click."

MultiColumn ComboBox

answered on 21 Jun 2011

3 answers

338 views

RadGroupBox BackColor from Form insead of RadPage

Hello.
I have RadGroupBox control placed on RadPageView. The problem is with RadGroupBox colors: in desing mode everything is ok (see desinger.PNG from atachement), but when I run my application, the BackColor of RagGroupBox seems to be from main form instead of PadPage (see running.PNG), so it looks strange.

How to fix this problem?

(version Q1 2011, WinForms)

Thanks in advance.
Darek.

GroupBox

answered on 21 Jun 2011

4 answers

180 views

[Solved] Visibility of a page

Hi,

Is there a way to hide a tab without removing it from the Pages collection? Can't find a property to do that.

Thanks!

PageView

answered on 20 Jun 2011

1 answer

252 views

Data binding Formatting the Cells

Hi,

I have a requirement where I have to compare dates which are in the binded data set to grid. The priority column has to be set to a value and format the cell color to red/orange/gree based on the value of Targetdt and warningdate which is available in the datasource binded to the grid.

I am doing the following.

void rGridViewTasks_ViewCellFormatting(object sender, CellFormattingEventArgs e)

        {

                if (e.CellElement.ColumnInfo.Name == "Priority")

{

//if ((DateTime)e.CellElement.RowInfo.Cells["TargetDt"].Value >= DateTime.Now )

//{

// e.CellElement.BackColor = Color.DarkRed;

// e.CellElement.Value = "1";

//}

//else if (((DateTime)e.CellElement.RowInfo.Cells["WarningDate"].Value >= DateTime.Now) &&

// ((DateTime)e.CellElement.RowInfo.Cells["TargetDt"].Value < DateTime.Now))

//{

// e.CellElement.BackColor = Color.DarkOrange;

// e.CellElement.Value = "2";

//}

//else

//{

// e.CellElement.BackColor = Color.DarkGreen;

// e.CellElement.Value = "3";

//}

}



}

the above WarningDate and TargetDt columns are not added as the columns in the grid, hence they are coming as null and giving a exception.

I checked the rowinfo databounditem and it is also null. Please advice.

regards,
Khizar

GridView

answered on 20 Jun 2011

1 answer

214 views

Ribbon Bar BackStage View Exception

I am using Telerik Ribbon on my Application's Main Form. which I call from the Login Form within a Separate Thread (i.e. I start a thread, and within that thread, I load Main Form) using Application.Run(new frmMain()). On Main Form's Load Event, I am selecting a tab of Back Stage View dynamically. using following code

mainRibbon.BackstageControl.SelectedItem = bsvTabAccount;
mainRibbon.BackstageControl.ShowPopup(new System.Drawing.Point(0, 56), mainRibbon.RibbonBarElement);

My problem is, if I hit Enter key on back stage view, application throws exception which states,

System.NullReferenceException: Object reference not set to an instance of an object.
at Telerik.WinControls.UI.BackstageViewElement.ProcessKeyboardSelection(Keys keyCode)
at Telerik.WinControls.UI.RadRibbonBarBackstageView.OnKeyDown(KeyEventArgs e)
at System.Windows.Forms.Control.ProcessKeyEventArgs(Message& m)
at System.Windows.Forms.Control.ProcessKeyMessage(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at Telerik.WinControls.RadControl.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Note: Exception does not appear if I click any tab of back stage view before I press Enter key.

Any help would be highly appreciated.

RibbonBar

answered on 20 Jun 2011

4 answers

167 views

combobox without dropdown.

Hi,

i have a datasource where there is a status column and it is a enumerator having just a status code, I have a requirement that it should show the status text in the grid, but the control should not be a dropdown, it is just a simple text field in the grid.

is this possible to implement something like a combo or lookup but not as a dropdown field?

Regards,
Khizar

GridView

answered on 20 Jun 2011

5 answers

953 views

how to install internal build?

how do i install the internal builds? where do i need to put he assemblies? in GAC or somewhere else? and do i have to add them to the toolbox manually?

General Discussions

answered on 20 Jun 2011

1 answer

105 views

Callbacks

Hi,

I have the following code, It encrypts the text into my access database but when I reopen the application I get encrypted text on the scheduler (it doesnt decrypt). Is there anything I am missing?

var summarySchedulerMapping = appointmentMappingInfo.FindBySchedulerProperty("Summary");
summarySchedulerMapping.ConvertToScheduler = new ConvertCallback(ConvertSummaryToScheduler);
summarySchedulerMapping.ConvertToDataSource = new ConvertCallback(ConvertSummaryToDataSource);

private object ConvertSummaryToScheduler(object item)
{
return Encryption.Decrypt((string)item);
}

private object ConvertSummaryToDataSource(object item)
{
return (object)Encryption.Encrypt((string)item);
}

Cheers

Scheduler and Reminder

answered on 20 Jun 2011

1 answer

202 views

X-Axies label overlap in chart

HI,

I have a need to display dynamic items on X axis i.e form one item to n number of items (may go to 100 or more)

problem is X-Axies label overlapping. i need do not overlap the label item

Need help to fit in my dynamic series and dynamic items on x-axis and the chart should look consistent.

Attached is the image for bad chart i am getting, there are more then 150 items .

Regards
Elumalai.K

Chart (obsolete as of Q1 2013)

answered on 20 Jun 2011

1 answer

124 views

[Solved] ResourceMappingInfo Color field

I'm binding to business objects for Appointments & Resources using EventMappingInfo and ResourceMappingInfo which is working ok, however I cannot see a way to add a Color property ResourceMappingInfo. I am grouping by resource in Timeline view. When the UI is displayed the resources all show up as a dark gray colour which is very hard to read. How can I set the colors of the resources?

Scheduler and Reminder

answered on 20 Jun 2011