Questions on UI for WinForms Forum

2 answers

179 views

Select first element in list by first letter

Hi.
I encounter with problem for RadDropDownList, with DropDownStyle = DropDownList.
I'm trying to select first element by typing first letter of the element in active control, but it don't work. It works for other elements in list, except first.

Is there any solution for this problem?

ListControl

answered on 09 Oct 2012

1 answer

134 views

Allowing Drag and Drop only on top of selected row

I want to drag an ui element from another part of the screen to only the selected row of a gridview. The workflow is that use selects one row on the gridview (row multiselection is disabled) and then drags something on that row.
So only if the mouse cursor is on top of the selected row the cursor should change to DragDropEffects.Link. Any other row, column header, filter header, grouping are etc. should show DragDropEffects.None. I also want to change the row border od the selected row ro green color if possible to indicate that this drop is allowed.

Then I have some business logic to with the AddressBase object in the gridviewinfo.tag of the selected row and the data in the DragEventArgs. So far I have managed to do this in the grid's DragOver event handler. But how do I check that the element at mouse location is within the border of the selected row.

private void PersonMailingGridOnDragOver(object sender, DragEventArgs e)
{
Point location = PersonMailingGrid.PointToClient(new Point(e.X, e.Y));

GridDataCellElement element = PersonMailingGrid.ElementTree.GetElementAtPoint(location) as GridDataCellElement;

// check that the element is inside the selected row

if (element != null && !(element is GridFilterCheckBoxCellElement))
{
  AddressEventArgs data = (AddressEventArgs)e.Data.GetData(typeof(AddressEventArgs));
  AddressBase dragAddress = data.Address;
  AddressBase rowAddress = element.GridViewElement.CurrentRow.Tag as AddressBase;

_lastDragElement = element.GridViewElement;
_lastDragElementBackColor = element.RowElement.BackColor;

  if (rowAddress != null && rowAddress.AddressContactType == dragAddress.AddressContactType)
  {
   e.Effect = DragDropEffects.Link;
   element.RowElement.BackColor = _dragStateBorderColourAllowed;
  }
  else
  {
   e.Effect = DragDropEffects.None;
   element.RowElement.BackColor = _dragStateBorderColourNotAllowed;
  }
}
}

GridView

answered on 08 Oct 2012

1 answer

79 views

Migration VS2008 to VS2010

Hello,

This week we migrated our software from Visual Studio 2008 to 2010. We have a treeview (few places) and it contains an imagelist. Which worked perfectly in VS2008. But now in VS2010 the images are gone and we go back to the basic view with the + and - before a node.

We did not change anything but our own images are not shown anymore. We did not upgrade our Telerik DLL or anything. Just migrated to 2010.

We hope anyone knows a solution.

Thanks,

Niels den Otter

Treeview

answered on 08 Oct 2012

1 answer

285 views

Find and Highlight text by code

Q1 2012

VS 2010

The following snippet does not run.

private void HightlightText(string textToHighlight)

{

DocumentTextSearch search = new DocumentTextSearch(this.radRichTextBox.Document);

foreach (var textRange in search.FindAll(textToHighlight))

{

this.radRichTextBox.Document.Selection.AddSelectionStart(textRange.StartPosition);

this.radRichTextBox.Document.Selection.AddSelectionStart(textRange.EndPosition);

this.radRichTextBox.ChangeTextHighlightColor(Color.Red);

}

How can I highlight with red color all the occurrences of the text?

Tommaso

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 08 Oct 2012

1 answer

79 views

Error installing Windows Forms project due to Telerik

I am trying to install my vs2010 windows program on a user's computer. I have enabled the app to copy over the bin files but I still get a dependency error during installation. The app also complains about versions. When I try to install it on a user's computer, I get the following installer error:

http://screencast.com/t/1MEpc4Tr8PQ9

Please assist.

General Discussions

answered on 08 Oct 2012

2 answers

165 views

messagebox text reverse

hello
I use messagebox and set the Rtl=Yes,the text message language is in persian or arabic,then
I want to change the font of messagebox so I use html in message text
(RadMessageBox.Show(this, "<html><font=Tahoma>سلام دوست من</html>", "title",
MessageBoxButtons.OK, RadMessageIcon.Info, MessageBoxDefaultButton.Button1, RightToLeft.Yes);)
but when the messagebox is showDialog the Text is displayed in reverse.
for example i write "سلام دوست من" in textmessage but its shown "من دوست سلام" .
please help me to solve this problem.

MessageBox

answered on 06 Oct 2012

1 answer

95 views

Self referencing hierarchical grid - horizontal scrolling with column freeze

Hi

We have a self referencing hierarchical radgrid and would like to make it easier for our users to use it in our application.

Currently we have the following set which crams all the columns into the current view:

grid.MasterTemplate.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;

What we'd like to do is to change this parameter to GridViewAutoSizeColumnsMode.None and allow the user to scroll horizontally but to still keep the hierarchy on the left visible (i.e. freeze the left most column). Is there a way to do this?

Thanks

GridView

answered on 05 Oct 2012

2 answers

126 views

Tootips in strip view mode

Hi Telerik team, I working with RadPageView in strip view mode. I this mode the button More show the tooltip “Add New Page”. How I can change this tooltip by another? For example “Add new playlist” . Thank you ahead of time and sorry for my English

PageView

answered on 05 Oct 2012

5 answers

298 views

CellFormatting event is fired high frequence

Hi,
When the program execute the following codes:
this.radGridView1.Rows[1].Cells[1].Style.DrawFill = true;
his.radGridView1.Rows[1].Cells[1].Style.NumberOfColors = 1;
this.radGridView1.Rows[1].Cells[1].Style.CustomizeFill = true;
this.radGridView1.Rows[1].Cells[1].Style.BackColor = Color.Brown;

all the cells of the second row will trig the cellFormatting event. The performace is low.

Can we avoid it ,and only make the above cell to trig the cellformatting event?

Regrads!

GridView

answered on 05 Oct 2012

1 answer

175 views

Problems with the RadGridView CellFormatting

I am developing an application where I use the RadGridView to display information from various stores. I use a GridView and show only the information of one store at a time.

In CellFormating'm formatting the text of GridView and am placing an image in the GridView cells when it has a note or comment.

The problem with it is that sometimes CellFormatting puts the image of the note in cells where it is not and does not remove the image of the note when changing store. The data in the GridView if the images are updated but the notes are not removed.

My code is as follows:

//----- Implementación del evento para el formateo de las celdas -----//
private void rgvResOper_CellFormatting(object sender, CellFormattingEventArgs e)
{
int iRenglon, iColumna, iRenCom, iColCom, iElemento1;
string sDato;
Font MiFont001 = new Font(new FontFamily("Verdana"), 6.0F, FontStyle.Bold);

try
{
Cursor.Current = Cursors.WaitCursor;

//--------------------------------------------------------------------------------------------------------------------//
//----- S e d a f o r m a t o a l a c e l d a q u e s e e n c u e n t r a a c t i v a -----//
//--------------------------------------------------------------------------------------------------------------------//
if (e.CellElement.ViewTemplate.Caption == "Información de las Cuentas Contables afectadas por la Póliza")
{
//e.CellElement.DrawFill = true;

e.CellElement.BackColor = Color.FromArgb(240, 240, 255);
e.CellElement.TableElement.RowHeight = 17;
e.CellElement.NumberOfColors = 1;
}
else if (e.CellElement.ViewTemplate.Caption == "Información de las Pólizas que conforman el Concepto")
{
//e.CellElement.DrawFill = true;

e.CellElement.BackColor = Color.FromArgb(240, 255, 240);
e.CellElement.TableElement.RowHeight = 18;
e.CellElement.NumberOfColors = 1;
}
else if (e.CellElement.ViewTemplate.Caption == "")
{
if (e.CellElement.ColumnInfo.HeaderText == "IdConcepto")
{
e.CellElement.Font = MiFont001;
}

if (e.CellElement.Text == "GROSS PROFIT" ||
e.CellElement.Text == "COST" ||
e.CellElement.Text == "OTHERS COST / PROFITS" ||
e.CellElement.Text == "EXTRA POSITIONS" ||
e.CellElement.Text == "OTHERS" ||
e.CellElement.Text == "PROFIT" ||
e.CellElement.Text == "CASH-FLOW Before Corporate Tax" ||
e.CellElement.Text == "EBITDA" ||
e.CellElement.Text == "EBIT")
{
e.CellElement.ForeColor = Color.Maroon;
}

//-------------------------------------------------------------------------------------------------------------------------------------------------//
//----- S e o b t i e n e l a i n f o r m a c i ó n d e l c o m e n t a r i o p a r a c o l o c a r e l m a r c a d o r -----//
//-------------------------------------------------------------------------------------------------------------------------------------------------//
if (this.dtResComentarios.Rows.Count > 0 && this.rgvResOper.Rows.Count > 0)
{
for (iElemento1 = 0; iElemento1 <= this.dtResComentarios.Rows.Count - 1; iElemento1++)
{
if (this.rrbCifrasMes.ToggleState == Telerik.WinControls.Enumerations.ToggleState.On)
{
if (this.dtResComentarios.Rows[iElemento1]["DescColumna"].ToString() == e.CellElement.ColumnInfo.FieldName.ToString() &&
(Convert.ToInt32(this.dtResComentarios.Rows[iElemento1]["IdConcepto"]) - 1) == e.CellElement.RowIndex &&
iDeptoTda == Convert.ToInt32(this.dtResComentarios.Rows[iElemento1]["IdCtoUtilidad"]))
{
e.CellElement.Image = Image.FromFile(Application.StartupPath + "\\Imagenes\\Iconos\\Nota2.png");
e.CellElement.ImageAlignment = ContentAlignment.MiddleRight;
e.CellElement.TextImageRelation = TextImageRelation.TextBeforeImage;
e.CellElement.TextAlignment = ContentAlignment.MiddleRight;
}
}
}
}
}
else
{
e.CellElement.ResetValue(LightVisualElement.DrawFillProperty, Telerik.WinControls.ValueResetFlags.Local);
e.CellElement.ResetValue(LightVisualElement.ForeColorProperty, Telerik.WinControls.ValueResetFlags.Local);
e.CellElement.ResetValue(LightVisualElement.NumberOfColorsProperty, Telerik.WinControls.ValueResetFlags.Local);
e.CellElement.ResetValue(LightVisualElement.BackColorProperty, Telerik.WinControls.ValueResetFlags.Local);
}

Cursor.Current = Cursors.Default;
}
catch (Exception ex)
{
Cursor.Current = Cursors.Default;
MessageBox.Show(ex.Message.ToString(), "Emisión de Reportes", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}

Can you help me please.

Not if worth something if I inform you that I have a license for WinForms controls Tellerik.

Greetings ...

GridView

answered on 05 Oct 2012