Questions on UI for WinForms Forum

2 answers

142 views

Hi Telerik

I've been struggling over the weekend with a problem in our app. We currently use a pageview in stack mode to display a collection of items grouped into the pageview's pages. The pageview and its pages are generated programmatically and we use another control dock/filled into the pages to contain the items.

The items display fine in stack mode but the number of items to be displayed now requires a mechanism of display which allows scrolling. I thought I woud use explorerbar for this but when I change the mode of the pageview to explorerbar the controls containing the items no longer show up in the pages. The pageview and its pages do show up.

I have not been able to reproduce the problem in a simple project (the explorerbar idea works fine in the simple project). More strangely I only need to change

RadPageView temp = new RadPageView() { Dock = DockStyle.Fill };

temp.ViewMode = PageViewMode.ExplorerBar;

to

RadPageView temp = new RadPageView() { Dock = DockStyle.Fill };

temp.ViewMode = PageViewMode.Stack;

and the rest of the code in the app creates the correct pages, controls and items and displays them.

Are there any properties I need to set specific to the explorerbar mode which will allow the content of my pages to show when in explorerbar mode?

Have you come across this problem before?

Regards
Ian Carson

PageView

answered on 21 Dec 2011

3 answers

221 views

Refilling a RadGridView using Entitiy Framework instead of Dataset

Hello,

I'm looking for the Entity Framework equivalent of dataset's tableAdapter.Fill/tableAdapter.FillByBy.

Because they were reusable to refill a GridView (Windforms), possibly using a different 'where clause'.

The only way I know to fill/refill the GridView from DB now using EF with different parameters:

this.myBindingSource.DataSource =  myNewSelectQueryObject;

the 'first fill' with this works fine, but the second one will cause the DataSource et the GirdView to be impossible to edit. (Although the BindingSource the GridView are NOT 'readonly'.) a,d EF.Refresh() doesn't seem to update records that could be in the DB but are not present in the 'EF'.

Thank you for your help.

GridView

answered on 21 Dec 2011

2 answers

209 views

radlistview transparent

Hi ,
i am using latest telerik version
in order to make radlistview transparent to form background i had set the color of radlistview to transparent but it always show a white background on runtime.
if there is any code or method to make radlistview transparent to parent form i will appreciate help.
Best regards, jack

ListView

answered on 21 Dec 2011

5 answers

255 views

DateTimeOffset

We continue to have problems with using a GridViewDateTimeColumn with DateTimeOffset. I *thought* we had this working months ago, but revisited a feature that we have not used for many months and we cannot get it to work. Don't know if it is due to the version of the controls we are using? Or something we have done.

We continue to either get "Converter can't convert" or other types of formatting errors. To help demonstrate this problem, we did a very simple sample. Just try to drop down one of the calendar drop downs and the error occurs.

Here is the code:

Imports System.ComponentModel

Imports Telerik.WinControls.UI

Public Class Form1

Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load

TimeCardGrid.MasterTemplate.AutoSizeColumnsMode = Telerik.WinControls.UI.GridViewAutoSizeColumnsMode.Fill

TimeCardBindingSource.DataSource = TimeCards.Retrieve()

End Sub

End Class

Public Class TimeCard

Public Property StartTime As DateTimeOffset?

Public Property endTime As DateTimeOffset?

End Class

Public Class TimeCards

Inherits BindingList(Of TimeCard)

Public Shared Function Retrieve() As TimeCards

Dim timeCardList As New TimeCards From

{New TimeCard With {.StartTime = New DateTimeOffset(2011, 12, 8, 9, 45, 30, New TimeSpan(-8, 0, 0)),

.endTime = New DateTimeOffset(2011, 12, 9, 11, 45, 30, New TimeSpan(-8, 0, 0))},

New TimeCard With {.StartTime = New DateTimeOffset(2011, 12, 11, 9, 45, 30, New TimeSpan(-8, 0, 0)),

.endTime = New DateTimeOffset(2011, 12, 12, 11, 45, 30, New TimeSpan(-8, 0, 0))}}

Return timeCardList

End Function

End Class

<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _

Partial Class Form1

Inherits System.Windows.Forms.Form

'Form overrides dispose to clean up the component list.

<System.Diagnostics.DebuggerNonUserCode()> _

Protected Overrides Sub Dispose(ByVal disposing As Boolean)

Try

If disposing AndAlso components IsNot Nothing Then

components.Dispose()

End If

Finally

MyBase.Dispose(disposing)

End Try

End Sub

'Required by the Windows Form Designer

Private components As System.ComponentModel.IContainer

'NOTE: The following procedure is required by the Windows Form Designer

'It can be modified using the Windows Form Designer.

'Do not modify it using the code editor.

<System.Diagnostics.DebuggerStepThrough()> _

Private Sub InitializeComponent()

Me.components = New System.ComponentModel.Container()

Dim GridViewDateTimeColumn1 As Telerik.WinControls.UI.GridViewDateTimeColumn = New Telerik.WinControls.UI.GridViewDateTimeColumn()

Dim GridViewDateTimeColumn2 As Telerik.WinControls.UI.GridViewDateTimeColumn = New Telerik.WinControls.UI.GridViewDateTimeColumn()

Me.TimeCardBindingSource = New System.Windows.Forms.BindingSource(Me.components)

Me.TimeCardGrid = New Telerik.WinControls.UI.RadGridView()

CType(Me.TimeCardBindingSource, System.ComponentModel.ISupportInitialize).BeginInit()

CType(Me.TimeCardGrid, System.ComponentModel.ISupportInitialize).BeginInit()

Me.SuspendLayout()

'

'TimeCardBindingSource

'

Me.TimeCardBindingSource.DataSource = GetType(WindowsApplication9.TimeCard)

'

'TimeCardGrid

'

Me.TimeCardGrid.Location = New System.Drawing.Point(12, 12)

'

'TimeCardGrid

'

Me.TimeCardGrid.MasterTemplate.AllowAddNewRow = False

Me.TimeCardGrid.MasterTemplate.AllowColumnChooser = False

Me.TimeCardGrid.MasterTemplate.AllowColumnReorder = False

Me.TimeCardGrid.MasterTemplate.AllowDeleteRow = False

Me.TimeCardGrid.MasterTemplate.AllowDragToGroup = False

Me.TimeCardGrid.MasterTemplate.AutoGenerateColumns = False

GridViewDateTimeColumn1.DataType = GetType(System.Nullable(Of System.DateTimeOffset))

GridViewDateTimeColumn1.FieldName = "StartTime"

GridViewDateTimeColumn1.Format = System.Windows.Forms.DateTimePickerFormat.[Short]

GridViewDateTimeColumn1.FormatString = "{0:d}"

GridViewDateTimeColumn1.HeaderText = "StartTime"

GridViewDateTimeColumn1.Name = "StartTime"

GridViewDateTimeColumn2.DataType = GetType(System.Nullable(Of System.DateTimeOffset))

GridViewDateTimeColumn2.FieldName = "EndTime"

GridViewDateTimeColumn2.Format = System.Windows.Forms.DateTimePickerFormat.[Short]

GridViewDateTimeColumn2.FormatString = "{0:d}"

GridViewDateTimeColumn2.HeaderText = "EndTime"

GridViewDateTimeColumn2.Name = "EndTime"

Me.TimeCardGrid.MasterTemplate.Columns.AddRange(New Telerik.WinControls.UI.GridViewDataColumn() {GridViewDateTimeColumn1, GridViewDateTimeColumn2})

Me.TimeCardGrid.MasterTemplate.DataSource = Me.TimeCardBindingSource

Me.TimeCardGrid.MasterTemplate.ShowFilteringRow = False

Me.TimeCardGrid.MasterTemplate.ShowRowHeaderColumn = False

Me.TimeCardGrid.Name = "TimeCardGrid"

Me.TimeCardGrid.ShowGroupPanel = False

Me.TimeCardGrid.Size = New System.Drawing.Size(315, 235)

Me.TimeCardGrid.TabIndex = 2

Me.TimeCardGrid.Text = "RadGridView1"

'

'Form1

'

Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)

Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font

Me.ClientSize = New System.Drawing.Size(347, 263)

Me.Controls.Add(Me.TimeCardGrid)

Me.Name = "Form1"

Me.Text = "Form1"

CType(Me.TimeCardBindingSource, System.ComponentModel.ISupportInitialize).EndInit()

CType(Me.TimeCardGrid, System.ComponentModel.ISupportInitialize).EndInit()

Me.ResumeLayout(False)

End Sub

Friend WithEvents TimeCardBindingSource As System.Windows.Forms.BindingSource

Friend WithEvents TimeCardGrid As Telerik.WinControls.UI.RadGridView

End Class

Please let us know what we need to do to get this to work.

THANKS!

GridView

answered on 21 Dec 2011

1 answer

97 views

listview

is there a method to make listview transparent

ListView

answered on 21 Dec 2011

2 answers

282 views

Cannot render controls in Design View

Hello, I am having an issue rendering RadControls For WInforms in the VS2008 IDE, seems when I drop any controls on a form they do not render on the page so that can click resize move around etc. I see all controls represented at the bottom of the form as if they were objects that are not visually represented such as DataBindingDatasources controls. I have uninstalled the Controls and re-installed but this has not solved the issue. (See attached Screen shot)

Visual Studio 2008 Pro Sp1
Using Microsoft.Net v2.0.50727 (with 3, 3.5 framework)
Windows Server 2003 sp2
WinForms_2011_3_11_1116

Thank You

General Discussions

answered on 20 Dec 2011

1 answer

108 views

Checkbox Event Quection

Hello Guys,

        private void radGridViewTakeSomeData_CellValueChanged(object sender, GridViewCellEventArgs e)
        {
            bool isChecked = (bool)e.Row.Cells[4].Value;
          if (isChecked == true)
            {
                            //Do something....
            }
        }

When I check GridViewCheckBoxColumn , the event acts the moment I click somewhere else in the grid. Should I change the event I'm using or is any "End Edit Mode" property in order to act immediately after I tick the Checkbox??

Thanks in advance!!

Buttons, RadioButton, CheckBox, etc

answered on 20 Dec 2011

4 answers

167 views

2011 Q1 Custom Sorting

Dear,

I would like to customize sorting with the treeview.

For instance I bound treeview to Person class entity list.

Then I would like to sort by firstname or lastname or age.

I tried SortDescriptors without success.

Thanks

Marc

Treeview

answered on 20 Dec 2011

1 answer

149 views

Cancel Item Check

Hello

I am setting a flag that is evaluated in ItemCheckedChanging. At times I need to stop an item from being checked. I have tried e.Cancel but it does not seem to work. In addition I looked for a property that contained previous checked state property but did not find anything.

I would like to be able to keep an item from being checked on a per item base.

Any suggestions?

Thank You

CheckedListBox

answered on 20 Dec 2011

1 answer

284 views

Databinding and radDateTimePicker

Hi

I have a problem with the ValueChanged event. It does not fire when i populate the record, but when the control is shown.
This is because the control is binded to the object. So I really dont know if the change is done by the user or bye the binding it self.
Is there a way to check if the value is set by the object binding or by the user?

Regards
Svein Thomas

Calendar, DateTimePicker, TimePicker and Clock

answered on 19 Dec 2011