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2 answers
80 views

When i create form with RadForm and inherited RadRibbonForm then button close control under display RadRibbonForm with theme Office2013Light

 

khanhnd
Top achievements
Rank 2
 answered on 21 Jan 2016
1 answer
351 views

Hi, I'm just getting to grips with Chartview for Winforms and wondered what the best way is to allow someone to draw shapes and lines on a chart, and have the ability for those shapes to zoom and pan with the chart? I saw a few posts suggesting that it might be possible to use RadDiagram together with Chartview to achieve this?

Any helpful reposnses would be grately appreciated.

Hristo
Telerik team
 answered on 20 Jan 2016
2 answers
188 views

Greetings,

I am attempting to search a loaded PDF document for a specific bit of text which can be located via the navigator controls but the PdfViewerElement.Find isn't able to find it.

 I have included my code below which I got from the online documentation and you can see the pdf I am searching at this address http://ab.rockwellautomation.com/Programmable-Controllers/MicroLogix-1100#documentation

 Is there something I am doing wrong in my code that the PDFNavigators search function can locate text but mine cannot?

 

Thank you!

Private Sub RadForm1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
    Dim opt As New Telerik.Windows.Pdf.Documents.Fixed.Search.TextSearchOptions
 
    DaViewer.LoadDocument("C:\Users\Sean\Desktop\1763-um001_-en-p.pdf")
 
    opt.CaseSensitive = False
    opt.WholeWordsOnly = False
 
    Dim res As Telerik.Windows.Pdf.Documents.Fixed.Search.SearchResult = DaViewer.PdfViewerElement.Find("Allen", opt)
 
    If res Is Telerik.Windows.Pdf.Documents.Fixed.Search.SearchResult.NotFound Then
        RadMessageBox.Show("String not found")
    Else
        RadMessageBox.Show("Result found on page " & res.Range.StartPosition.Page.PageNo)
    End If
End Sub

Hristo
Telerik team
 answered on 20 Jan 2016
2 answers
152 views

Hello there,

I have some problems with the gridview control when using three-stated checkboxcolumns. To recreate the problem, create a new telerik winforms project and in the mainform add a gridview. Dock this gridview to the form. 

 Then, add the following columns and change the options as follows:

GridViewTextBoxColumm

 FieldName: Id

 Name: Id

 MinWidth: 80 (important for later)

 

GridViewTextBoxColumm
FieldName: Name
Name: Name
MinWidth: 150

 

GridViewCheckBoxColumn

FieldName: Test1

Name: Test1

MinWidth: 80

ThreeState: true

 

GridViewCheckBoxColumn
FieldName: Test2
Name: Test2
MinWidth: 80
ThreeState: true

 

GridViewCheckBoxColumn
FieldName: Test3
Name: Test3
MinWidth: 80
ThreeState: true

 

GridViewDateTimeColumn

FieldName: CurrentDateTime

Name: CurrentDateTime

MinWidth: 200

 

GridViewDecimalColumn

FieldName: Nr

Name: Nr

 

GridViewCheckBoxColumn

FieldName: Test4

Name: Test4

MinWidth: 80

 

The extra columns and minimal width are only there to make the sure you can scroll horizontally.

Change the codebehind for RadForm1 to the following:

public partial class RadForm1 : Telerik.WinControls.UI.RadForm
 {
     public RadForm1()
     {
         InitializeComponent();
     }
 
     private void RadForm1_Load(object sender, EventArgs e)
     {
         this.radGridView1.DataSource = GetTestData();
     }
 
     private List<TestData> GetTestData()
     {
         List<TestData> test = new List<TestData>();
 
         for (int i = 0; i < 100; i++)
         {
             test.Add(new TestData()
                 {
                     Id = i + 1,
                     Name = i.ToString(),
                     Test1 = i % 2 == 0 ? true : (bool?)null,
                     Test2 = i % 3 == 0 ? false : (bool?)null,
                     Test3 = i % 5 == 0 ? (bool?)null : false,
                     CurrentDateTime = DateTime.Now,
                     Nr = i,
                     Test4 = i % 2 == 0 ? true : false
                 });
         }
 
         return test;
     }
 }

To trigger the error, run the project, do not enlarge the window, and try to add a new line. Fill in a new id and a new name, keep Test1 to it's initial (third) state and uncheck Test2. Then, without pressing enter, scroll left and right by grabbing the horizontal scrollbar and moving quickly left and right. At that moment you should get the following error:

 

TargetInvocationException:  
bij System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
   bij System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
   bij System.Reflection.RuntimeMethodInfo.UnsafeInvoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   bij System.Delegate.DynamicInvokeImpl(Object[] args)
   bij System.Windows.Forms.Control.InvokeMarshaledCallbackDo(ThreadMethodEntry tme)
   bij System.Windows.Forms.Control.InvokeMarshaledCallbackHelper(Object obj)
   bij System.Threading.ExecutionContext.RunInternal(ExecutionContext
(Innerexception)
NullReferenceException: 
bij Telerik.WinControls.UI.BaseGridEditor.OnValueChanging(ValueChangingEventArgs e)
   bij Telerik.WinControls.UI.RadCheckBoxEditor.SetValue(Object value)
   bij Telerik.WinControls.UI.RadCheckBoxEditor.set_ThreeState(Boolean value)
   bij Telerik.WinControls.UI.GridCheckBoxCellElement.SetThreeState(GridViewColumn column)
   bij Telerik.WinControls.UI.GridCheckBoxCellElement.Initialize(GridViewColumn column, GridRowElement row)
   bij Telerik.WinControls.UI.GridVirtualizedCellElement.Attach(GridViewColumn data, Object context)
   bij Telerik.WinControls.UI.GridCheckBoxCellElement.Attach(GridViewColumn data, Object context)

 

So, my question would be: what am I doing wrong and how can I avoid this?

 

Thanks in advance

 Then, add the following columns and cha
 Then, add the following columns and cha
Jasper
Top achievements
Rank 1
 answered on 20 Jan 2016
1 answer
177 views

 Hi!

I have a Telerik GridView (RadGridView1), and two columns of this GridView contains cells (GridDataCellElement) with charts (RadChartElement())

Durung the scrolling all the cells are distorting. I've read a lot of topics, but I still don't understand how should I fix it. My case is different, than others.

How can I fix it?

 

Private Sub InitalizeGrid()
        AddHandler RadGridView1.CreateCell, AddressOf radGridView1_CreateCell
        Me.RadGridView1.TableElement.RowHeight = 130
        Me.RadGridView1.ReadOnly = True
        Me.RadGridView1.AutoExpandGroups = True
        Me.RadGridView1.AllowAddNewRow = False
        Me.RadGridView1.AllowColumnReorder = True
        Me.RadGridView1.EnableSorting = True
        Me.RadGridView1.ShowGroupPanel = False
        Me.RadGridView1.ShowRowHeaderColumn = True
        Me.RadGridView1.ForeColor = Color.Black
        Me.RadGridView1.AllowSearchRow = True
        Me.RadGridView1.AutoGenerateColumns = False
        Me.RadGridView1.VirtualMode = False
        Me.RadGridView1.MasterTemplate.VirtualMode = False

        RadGridView1.MasterTemplate.Columns.Add(newTextBoxColumn("ID", 100, "ID"))
        RadGridView1.MasterTemplate.Columns.Add(newTextBoxColumn("Name", 220, "Name"))
        RadGridView1.MasterTemplate.Columns.Add(newTextBoxColumn("Chart 1", 220, "Chart 1))
        RadGridView1.MasterTemplate.Columns.Add(newTextBoxColumn("Chart 2", 220, "Chart 2"))

        'SQL
        Dim sqlDt As SqlDataTable
        Try
----------------------------------------------
            Dim sqlDa As New SqlDataAdapter()
            sqlDa.SelectCommand = SqlCmd
            sqlDa.Fill(sqlDt)
----------------------------------------------

            Me.RadGridView1.MasterTemplate.BeginUpdate()
            RadGridView1.DataSource = sqlDt
            Me.RadGridView1.MasterTemplate.EndUpdate()

            gvSourceAnalysis.DataSource = sqlDt
            sqlDa.Dispose()
        Catch ex As Exception
            Throw ex
        End Try
    End Sub

   Private Function newTextBoxColumn(ByVal columnName As String, ByVal columnWidth As Integer, ByVal fieldName As String) As GridViewTextBoxColumn
        Dim textBoxColumn As New GridViewTextBoxColumn()
        textBoxColumn.Name = columnName
        textBoxColumn.HeaderText = columnName
        textBoxColumn.FieldName = fieldName
        textBoxColumn.Width = columnWidth
        textBoxColumn.TextAlignment = ContentAlignment.BottomRight
        textBoxColumn.ReadOnly = True
        Return textBoxColumn
    End Function

    Private Sub radGridView1_CreateCell(ByVal sender As Object, ByVal e As GridViewCreateCellEventArgs)
        If e.CellType Is GetType(GridDataCellElement) AndAlso (e.Column.Name = "Chart 1" OrElse
                                                               e.Column.Name = "Chart 2" OrElse) Then
            Dim chart As New RadChartElement()
            Dim lineSeries As New LineSeries()
            chart.View.Margin = New Padding(3)
            chart.GradientStyle = Telerik.WinControls.GradientStyles.Solid
            chart.AutoToolTip = True
            chart.View.ShowTrackBall = True

            lineSeries = New LineSeries()
            lineSeries.BorderColor = Color.FromArgb(68, 68, 68)
            'lineSeries.PointSize = New SizeF()
            If sqlDt.Rows.Count > 0 Then
                If e.Column.Name = "Chart 1" Then
                    lineSeries.DataPoints.Add(New CategoricalDataPoint(CDbl(Val(sqlDt.Rows(e.Row.Data.Index).Item("ColumnFromSql1"))), "1"))
                    lineSeries.DataPoints.Add(New CategoricalDataPoint(CDbl(Val(sqlDt.Rows(e.Row.Data.Index).Item("ColumnFromSql2"))), "2"))
                    lineSeries.DataPoints.Add(New CategoricalDataPoint(CDbl(Val(sqlDt.Rows(e.Row.Data.Index).Item("ColumnFromSql3"))), "3"))
                    lineSeries.DataPoints.Add(New CategoricalDataPoint(CDbl(Val(sqlDt.Rows(e.Row.Data.Index).Item("ColumnFromSql4"))), "4"))
                    lineSeries.DataPoints.Add(New CategoricalDataPoint(CDbl(Val(sqlDt.Rows(e.Row.Data.Index).Item("ColumnFromSql5"))), "5"))
                    lineSeries.DataPoints.Add(New CategoricalDataPoint(CDbl(Val(sqlDt.Rows(e.Row.Data.Index).Item("ColumnFromSql6"))), "6"))
                ElseIf e.Column.Name = "Chart 2" Then
                    lineSeries.DataPoints.Add(New CategoricalDataPoint(CDbl(Val(sqlDt.Rows(e.Row.Data.Index).Item("ColumnFromSql7"))), "7"))
                    lineSeries.DataPoints.Add(New CategoricalDataPoint(CDbl(Val(sqlDt.Rows(e.Row.Data.Index).Item("ColumnFromSql8"))), "8"))
                    lineSeries.DataPoints.Add(New CategoricalDataPoint(CDbl(Val(sqlDt.Rows(e.Row.Data.Index).Item("ColumnFromSql9"))), "9"))
                    lineSeries.DataPoints.Add(New CategoricalDataPoint(CDbl(Val(sqlDt.Rows(e.Row.Data.Index).Item("ColumnFromSql10"))), "10"))
                    lineSeries.DataPoints.Add(New CategoricalDataPoint(CDbl(Val(sqlDt.Rows(e.Row.Data.Index).Item("ColumnFromSql11"))), "11"))
                    lineSeries.DataPoints.Add(New CategoricalDataPoint(CDbl(Val(sqlDt.Rows(e.Row.Data.Index).Item("ColumnFromSql12"))), "12"))
                End If
            End If
            chart.View.Series.Add(lineSeries)
            Dim gridDataCell As New GridDataCellElement(e.Column, e.Row)
            gridDataCell.Padding = New Padding(0)
            gridDataCell.Children.Add(chart)
            e.CellElement = gridDataCell
            e.CellType = GetType(GridDataCellElement)
        End If
    End Sub

Dimitar
Telerik team
 answered on 20 Jan 2016
3 answers
164 views

I'm having issues with the theming of the RadDropDownList using the VisualStudio2012Light theme. I've set my RDDL to have a height of 20px and without theming the text vertically centers normally and there are no hassles whatsoever. As soon as I apply the theme then things start getting pear shaped.

The RDDL automatically adjusts its height to 24px which is not what I want. This mismatches all the other controls I have with the same theme - none of them resize when the theme is applied.

When I adjust the height of the RDDL to 20px after the theming has been applied the height adjusts fine but the text remains in the same position and gets cut off. The offset doesn't adjust.

I know in the past themes have been buggy at times but this is the first time I've come across this particular issue. I can say for certain that with 2013.2.724.40 this wasn't an issue but after checking some other versions it was also a problem in 2015 Q2.

I'm using VS2012, .NET 4.0. The attached image shows:

1. How the text is cut off

2. How the RDDL resized itself

3. How the RDDL compares to a RadTextBox and a RadDateTimePicker

Dess | Tech Support Engineer, Principal
Telerik team
 answered on 19 Jan 2016
2 answers
166 views

Hi,

I have a problem with unselecting the new Row in my grid.

To explain the problem, i have a grid, where the user can add data to by using the new Row.

When clicking the new Row, it gets populated with some default data and can be edited.

I wanted to make sure the edited data gets saved when the user leaves the new Row,

so i used the UserAddingRow event to open a MessageBox to ask the user if he wants to save.

If yes, all right.

If no, I use e.Cancel to reject the data.

=> At this point I would like the new Row to change back to the initial "Click here to add new row" state,

but it stays selected or defined as CurrentRow. The data is gone, but an empty row stays as long as I don't switch to

another row manually, even when the data bound to the grid changes.

I can't find a way to unselect the row or set CurrentRow = null, as it seems not to be possible out of the event.

Also there seems to be no other event to hook up to after UserAddingRow when cancelled.

 

Maybe there is an easy way of unselecting, or maybe I'm using the wrong event for that purpose.

I would be glad for some help. :)

  

01.private void RadGridViewClockTimeUserAddingRow(object sender, GridViewRowCancelEventArgs e)
02.        {
03.            var result = RadMessageBox.Show(
04.                this,
05.                Resources.DoYouWantToSaveNew,
06.                Resources.Save,
07.                MessageBoxButtons.OKCancel);
08. 
09.            if (result == DialogResult.OK) return;
10. 
11.            e.Cancel = true;
12.            // CurrentRow = null ??
13.        }

Bjoern
Top achievements
Rank 1
 answered on 19 Jan 2016
1 answer
120 views

I recently upgraded the telerik controls from 2011.2.11.831 to 2015.1.331.20 and I am having an issue with the group by feature of the radgridview. Is this a known issue, and if is then is there a way to fix this?

grid1.png: The screen is stretched, the vertical scroll bar is clearly visible on the right.

grid2.png: As I reduce the width of the screen, the vertical scrollbar comes in with it as expected.

grid3.png: At this point the horizontal scroll bar is visible but the vertical one is not. This is with the horizontal scrollbar all the way to the right. Some content is also cut off.

grid4.png: This is how it looks before the telerik controls were updated to 2015.1.331.20.

 

Dess | Tech Support Engineer, Principal
Telerik team
 answered on 19 Jan 2016
3 answers
470 views

I'm sure this question has been asked a 1000 times, but this will make 1001. I have a RadGridView and for the purposes of this discussion let make it a single column grid. I set the columntype to GridViewCommandColumn. Let's pretend I have 5 rows of data. On even numbered rows I DON'T want a button or any other editor/control. I just want a readonly bit of text to show (or no text at all for that matter). Basically, I want to change the even numbered rows/cells to a different cell type. In this case I want a readonly textbox or something similar. More generically, I want to know how to change individual cells at both design and runtime. Is this doable? If so, I could sure use some guidance.

Thanks ... Ed

 

 

Dess | Tech Support Engineer, Principal
Telerik team
 answered on 19 Jan 2016
1 answer
895 views

I have a Windows application written in VB.Net.  It has a RadDropDownList control that has Items added to it at Design time.

I would like to Filter the items in the RadDropDownList control or disable/enable some items in the RadDropDownList control depending on the data in the other controls on the WinForm.

I have tried looking at the documentation but it is not clear on how to filter the RadDropDownList or find some items to be enabled or disabled in the RadDropDownList when the control has items added at design time not at runtime.

I am using version 2015.3.1104.40 of the RadDropDownList.

 Please help.  Thanks!

Hristo
Telerik team
 answered on 18 Jan 2016
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