The telerik radgridview takes a long time to load all records.

  Dim strProp As String = "Select * from " & ViewName
  Dim daProp As New OleDb.OleDbDataAdapter(strProp, conNFAD_NEW)
  Dim dsProp As New DataSet
  daProp.Fill(dsProp, "dtProp")
  rgvMain.DataSource = dsProp.Tables("dtProp")

(rgvMain) being the radgridview

The query returns 31 000 records (8 columns). It takes about 10 seconds to load.

--------------

I tried instead of doing "select * from"  to do a "select top 500". But when you filter the radgridview it filters the 500 records it returned form the query not the 31 000. which is correct.

But:

Is there a way to re-query the grid when a filter is applied so that it would return the top 500 records with the applied filter.

Thanks,

Goran Djuric

I have a date coming from the database in the format yyyymmdd.  I would like it to display in the drop down as mm/dd/yyyy.  I thought I could accomplish this with the FormatString, but as I'm finding out...not so much.  Anybody got any ideas how to accomplish this?

Thanks
Steve

Hi - I'm trying to print silently to the default printer though either the the radPDFViewerNavigator print button or the radPDFViewer default context menu.

For the radPDFViewerNavigator print button click event, I have the following:
me.RadPdfViewer1.Print(False)

This causes the document to print directly to the default printer but then right after that it still brings up the print dialog box.  Is there any way to keep the dialog box from showing?

As for the context menu print option, I can't seem to find a way to get the click event of this in order to override showing the print dialog box.

Any assistance on this will be greatly appreciated.

Hi Team,

i am creating new design for my windows application and i am using visual style builder 2014.

i have created design for many controls till now but now i am facing issue in ListView.
When we create design for ListView it will be only applied to simple view but not icon view or detail view.

Now here i need to design Icon View for ListView. So, for this which event i should design?

Thank You.

Hello everybody I'm from Brazil so I do not know if what I wrote here is right, but back to the subject of a need to help make a BubbleBar, if someone had a project to send me an example would be grateful, because I do not know the codes got mount the RadControls for WinForms Q3 2010 Demos and multiple errors. I will mention a few:
* Error 1 'RadControlsWinFormsApp1.Form1'does not contain 'the definition for' EnabledQSFButtons' and the extension method 'EnabledQSFButtons' accepting a first argument of type' RadControlsWinFormsApp1.Form1 'could b found (are you missing a usingdirective or an assembly reference? ) C: \ test \ RadControlsWinFormsApp1 \ RadControlsWinFormsApp1 \ Form1.cs 17 18RadControlsWinFormsApp1
* Error   2   The type or namespace name 'Examples' does not exist in the namespace 'Telerik' (are you missing an assembly reference?)   C:\teste\RadControlsWinFormsApp1\RadControlsWinFormsApp1\Form1.Designer.cs   31   43   RadControlsWinFormsApp1
* Error   3   'RadControlsWinFormsApp1.Form1' does not contain a definition for 'settingsPanel' and no extension method 'settingsPanel' accepting a first argument of type 'RadControlsWinFormsApp1.Form1' could be found (are you missing a using directive or an assembly reference?)   C:\teste\RadControlsWinFormsApp1\RadControlsWinFormsApp1\Form1.Designer.cs   39   62   RadControlsWinFormsApp1
* Error   7   The type or namespace name 'Examples' does not exist in the namespace 'Telerik' (are you missing an assembly reference?)   C:\teste\RadControlsWinFormsApp1\RadControlsWinFormsApp1\Form1.Designer.cs   77   23   RadControlsWinFormsApp1
* Warning   10   Could not find type 'RadControlsWinFormsApp1.BubbleBar'.  Please make sure that the assembly that contains this type is referenced.  If this type is a part of your development project, make sure that the project has been successfully built.       0   0  
* Warning   11   The variable 'bubbleBar1' is either undeclared or was never assigned.   C:\teste\RadControlsWinFormsApp1\RadControlsWinFormsApp1\Form1.Designer.cs   169   0  
* Warning   13   Could not find type 'settingsPanel'.  Please make sure that the assembly that contains this type is referenced.  If this type is a part of your development project, make sure that the project has been successfully built.   C:\teste\RadControlsWinFormsApp1\RadControlsWinFormsApp1\Form1.Designer.cs   173   0   
The sooner help me be very grateful as I am doing my course conclusion work and would like to implement this option.
Thank you for your attention.
Alan

I am working on a Windows Forms Application that automatically loads a PDF file and then scrolls through the pages.  I am using 2 timers, one to scroll the page, and the other to check for a new version of the PDF file.  When I find a new version of the PDF file, I unload the current file and then load the new file.  All of this appears to work.  The problem is that the document does not appear unless I click on the form.  I can see the scroll bar moving.

Here is the subroutine that loads the document:

    Private Sub LoadPDFFile()

        If File.Exists(My.Settings.PDFFileName) Then
            mCurrrentFileInfo = My.Computer.FileSystem.GetFileInfo(My.Settings.PDFFileName)

            If PdfViewer.IsLoaded Then
                PdfViewer.UnloadDocument()
            End If

            PdfViewer.LoadDocument(My.Settings.PDFFileName)
            PdfViewer.PdfViewerElement.GoToPage(1)
        End If

    End Sub


OS: Windows 8
.Net 4.5
PDFViewer Version: 2014.2.715.40

I am experimenting with an application that will give me CPU Usage, Memory Usage, and I want to expand it from there. Right now it goes to two Text Boxes. I combined it into the first text box 

How do I display each value in two GridView Columns?

Here is what I have now;

Hello,

I develop stock manager application for my company

I've a error message  converter can't convert

With VS2013 DataGridView, it's work but not with RadGridView

My code :

Private Sub MasterTemplate_CellClick(sender As Object, e As Telerik.WinControls.UI.GridViewCellEventArgs) Handles RadGridView1.CellClick
        If e.ColumnIndex = 0 Then
            Dim oCell As GridViewCellInfo = DirectCast(RadGridView1.Rows(e.RowIndex).Cells(e.ColumnIndex), GridViewCellInfo)
            If OpenFileDialog1.ShowDialog() = DialogResult.OK Then
                Dim oImage As Image = Image.FromFile(OpenFileDialog1.FileName)
                oCell.Value = resizeImage(oImage, 48, 48)
            Else
                Dim oResult As DialogResult = MessageBox.Show("Voulez-vous supprimer l'icône associée à ce produit ?", "Icône du produit", MessageBoxButtons.YesNo, MessageBoxIcon.Question)
                If oResult = Windows.Forms.DialogResult.Yes Then oCell.Value = Nothing
            End If
        End If
End Sub

Private Function resizeImage(ByVal oImage As Image, iWidth As Integer, iHeight As Integer) As Image
        Dim oSource As Bitmap = New Bitmap(oImage)
        Dim dScale As Double = oSource.Height / oSource.Width
        Dim oDest As New Bitmap(iWidth, iHeight)
        Dim gDest As Graphics = Graphics.FromImage(oDest)
        With gDest
            .InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic
            .SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias
            .CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality
            .DrawImage(oSource, 0, 0, oDest.Width, oDest.Height)
            Return oDest
        End With
End Function

Hi,

I use telerik Version 2011.1.411.2 (Runtime 2.0.50727).

I added a new colum in my database schema (for information double d_Value),
and I want that the data that is already memorized in database take value "1.0" not "0.0".

Can you explain how can I do ?

In advance, Thanks,
Richard.

Hello to all!

I've a GridViewMaskBoxColumn, where float are displayed using the exponental notation.  When I try to change a cells value, I can put the wished values, but when I leave the editor, the application crashs (even if I put only a '0')

The crash happens immediately after leaving the 'CellEndEdit'.

What went wrong in my source?

Thanks for your help!




   
   System.NullReferenceException wurde nicht behandelt.
  Message=Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt.
  Source=Telerik.WinControls.UI
  StackTrace:
       bei Telerik.WinControls.UI.RegexMaskTextBoxProvider.KeyDown(Object sender, KeyEventArgs e)
       bei Telerik.WinControls.UI.RadMaskedEditBoxElement.TextBoxItem_KeyDown(Object sender, KeyEventArgs e)
       bei System.Windows.Forms.KeyEventHandler.Invoke(Object sender, KeyEventArgs e)
       bei Telerik.WinControls.RadItem.OnKeyDown(KeyEventArgs e)
       bei Telerik.WinControls.UI.RadTextBoxItem.TextBoxControl_KeyDown(Object sender, KeyEventArgs e)
       bei System.Windows.Forms.Control.OnKeyDown(KeyEventArgs e)
       bei System.Windows.Forms.Control.ProcessKeyEventArgs(Message& m)
       bei System.Windows.Forms.Control.ProcessKeyMessage(Message& m)
       bei System.Windows.Forms.Control.WmKeyChar(Message& m)
       bei System.Windows.Forms.Control.WndProc(Message& m)
       bei System.Windows.Forms.TextBoxBase.WndProc(Message& m)
       bei System.Windows.Forms.TextBox.WndProc(Message& m)
       bei Telerik.WinControls.UI.HostedTextBoxBase.WndProc(Message& message)
       bei System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
       bei System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
       bei System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
       bei System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
       bei System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
       bei System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       bei System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       bei System.Windows.Forms.Application.Run(Form mainForm)
       bei Maxsyma.PLCExplorer.Program.Main() in e:\...\SourceCode\Regex\Program.cs:Zeile 40.
  InnerException:



Here is my code:

private void InitializeGrid()
{
..
    newColumn = new GridViewMaskBoxColumn();    // for float
    newColumn.Name = "Gleitpunkt";
    newColumn.TextAlignment = ContentAlignment.MiddleRight;
    newColumn.Width = 60;
    newColumn.HeaderText = "Gleitpunkt";
    newColumn.FormatString = "{0:0.000000e0}";
    this.radGridViewCapture.Columns.Add(newColumn);
..
}

private void CellBeginEdit(object sender, GridViewCellCancelEventArgs e)
{
    if (this.radGridViewCapture.ActiveEditor is RadMaskedEditBoxEditor)
    {
        RadMaskedEditBoxEditor spinEditor = this.radGridViewCapture.ActiveEditor as RadMaskedEditBoxEditor;
        spinEditor.EditorElement.Alignment = ContentAlignment.MiddleCenter;
        spinEditor.EditorElement.StretchVertically = false;
        this.radGridViewCapture.CurrentCell.Alignment = ContentAlignment.MiddleCenter;
    }
}

private void CellEditorInitialized(object sender, GridViewCellEventArgs e)
{
    if (this.radGridViewCapture.ActiveEditor is RadMaskedEditBoxEditor)
    {
        RadMaskedEditBoxEditor spinEditor = this.radGridViewCapture.ActiveEditor as RadMaskedEditBoxEditor;
        if (e.Column.Name == ColumnName.Names[ColumnName.ResultGleitpunkt])
        {
            spinEditor.MaskTextBox.MaskType = MaskType.Regex;
            spinEditor.MaskTextBox.Mask = "[-+]?([0-9]*[,.])?[0-9]+([eE][-+]?[0-9]+)?"; // e.g. 123.4e+5
        }
    }
}

private void CellEndEdit(object sender, GridViewCellEventArgs e)
{
    if (e.Column.Name == "Gleitpunkt")
    {
        float myNewValue = float.Parse(e.Row.Cells[e.ColumnIndex].Value.ToString());
        
        // myNewValue is e.g. 0 or  123  or  123.4e-88 and is correct so far
    }
}