Questions on UI for WinForms Forum

1 answer

121 views

how to add hierarchy row without using gridview relation

Gridview hierarchy row create without using gridviewrelation class .If it is possible please write the simple code.

GridView

answered on 16 Nov 2011

5 answers

645 views

Disable close, floating button for Dock Panel

Hi,

May I know how can i Hide/Disable (prefer hide) the 3 button on top of each dock panel?

Please advice.

Regards,
Ching-Yen Beh

Dock

answered on 16 Nov 2011

3 answers

223 views

Magnetic windows

Hi,

I would like to implement a kind of magnetic behaviour for windows in floating state. Is this feature in your roadmap?
Any suggestion?

Thanks for help.
Lorenzo

Dock

answered on 16 Nov 2011

5 answers

189 views

DataTable GetChanges Issue

Hi,

I have a problem using datatable.getChanges method with a radGridView binded on a datatable, changing values programmaticaly:
The first changed value is not in the datatable.getChanges results.

Here is a simple example :

Designer.vb

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

Partial Class testTelerik

Inherits System.Windows.Forms.Form

'Form remplace la méthode Dispose pour nettoyer la liste des composants.

<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

'Requise par le Concepteur Windows Form

Private components As System.ComponentModel.IContainer

'REMARQUE : la procédure suivante est requise par le Concepteur Windows Form

'Elle peut être modifiée à l'aide du Concepteur Windows Form.

'Ne la modifiez pas à l'aide de l'éditeur de code.

<System.Diagnostics.DebuggerStepThrough()> _

Private Sub InitializeComponent()

Dim GridViewTextBoxColumn1 As Telerik.WinControls.UI.GridViewTextBoxColumn = New Telerik.WinControls.UI.GridViewTextBoxColumn()

Me.RadGridView1 = New Telerik.WinControls.UI.RadGridView()

Me.RadButton1 = New Telerik.WinControls.UI.RadButton()

CType(Me.RadGridView1, System.ComponentModel.ISupportInitialize).BeginInit()

CType(Me.RadButton1, System.ComponentModel.ISupportInitialize).BeginInit()

Me.SuspendLayout()

'

'RadGridView1

'

Me.RadGridView1.Location = New System.Drawing.Point(27, 34)

'

'RadGridView1

'

Me.RadGridView1.MasterTemplate.AllowAddNewRow = False

Me.RadGridView1.MasterTemplate.AllowDeleteRow = False

Me.RadGridView1.MasterTemplate.AllowEditRow = False

Me.RadGridView1.MasterTemplate.AutoSizeColumnsMode = Telerik.WinControls.UI.GridViewAutoSizeColumnsMode.Fill

GridViewTextBoxColumn1.FieldName = "Name"

GridViewTextBoxColumn1.FormatString = ""

GridViewTextBoxColumn1.HeaderText = "Name"

GridViewTextBoxColumn1.Name = "column1"

GridViewTextBoxColumn1.Width = 219

Me.RadGridView1.MasterTemplate.Columns.AddRange(New Telerik.WinControls.UI.GridViewDataColumn() {GridViewTextBoxColumn1})

Me.RadGridView1.Name = "RadGridView1"

Me.RadGridView1.Size = New System.Drawing.Size(240, 150)

Me.RadGridView1.TabIndex = 0

Me.RadGridView1.Text = "RadGridView1"

'

'RadButton1

'

Me.RadButton1.Location = New System.Drawing.Point(137, 212)

Me.RadButton1.Name = "RadButton1"

Me.RadButton1.Size = New System.Drawing.Size(130, 24)

Me.RadButton1.TabIndex = 1

Me.RadButton1.Text = "RadButton1"

'

'testTelerik

'

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

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

Me.ClientSize = New System.Drawing.Size(292, 266)

Me.Controls.Add(Me.RadButton1)

Me.Controls.Add(Me.RadGridView1)

Me.Name = "testTelerik"

Me.Text = "testTelerik"

CType(Me.RadGridView1, System.ComponentModel.ISupportInitialize).EndInit()

CType(Me.RadButton1, System.ComponentModel.ISupportInitialize).EndInit()

Me.ResumeLayout(False)

End Sub

Friend WithEvents RadGridView1 As Telerik.WinControls.UI.RadGridView

Friend WithEvents RadButton1 As Telerik.WinControls.UI.RadButton

End Class

Form.vb

Public Class testTelerik

Public Sub New()

' Cet appel est requis par le concepteur.

InitializeComponent()

Dim dt As New DataTable

dt.Columns.Add("Name", GetType(String))

Dim dr As DataRow = dt.NewRow

dr("Name") = "Johnson"

dt.Rows.Add(dr)

dr = dt.NewRow

dr("Name") = "Peter"

dt.Rows.Add(dr)

dt.AcceptChanges()

RadGridView1.DataSource = dt

End Sub

Private Sub RadButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadButton1.Click

Dim dt As DataTable = DirectCast(RadGridView1.DataSource, DataTable)

RadGridView1.Rows(0).Cells(0).Value = "NewOne"

RadGridView1.Rows(1).Cells(0).Value = "NewOne2"

Dim changes As DataTable = dt.GetChanges

MessageBox.Show(changes.Rows.Count.ToString + " change(s)")

End Sub

End Class

I expect 2 changes whereas i have only 1..

Is this a bug ?
Is there a workaround?

Thanks,
Gerald

GridView

answered on 15 Nov 2011

1 answer

80 views

Can items rotate AROUND a center object?

I really like the look of the Carousel and I'm wondering if it's possible to put an image in the center (axis) around which the elements rotate.

So, when it rotates to the back, it would go behind the image and then come back out again on the other side.

My idea is to put a logo in the center. The items would never STOP behind the logo, but it would be a cool effect to have the items pass behind it. Really sells the 3D illusion.

Carousel

answered on 15 Nov 2011

1 answer

205 views

RadTextBox focus issue

Hi,

        i created an sample application with rad textbox and set autoscroll property to true. i have a list box with some data wheni click the data present in the list will be added to the textbox . when i keep on adding in this way i am unable to see the focus of the data in the text box .

i need to scroll down to see the last added data from the list.

how to set the focus to textbox on the currently added data instead scroll down and see.

i have attached two images please refer it.

please provide me a suggestion on this.

Regards,
Selva

TextBox

answered on 15 Nov 2011

4 answers

637 views

Grouping items in Dropdownlist

Is it possible to group the items in a dropdownlist similar to the attached image?

DropDownList

answered on 15 Nov 2011

3 answers

161 views

Populate GridViewMultiComboBoxColumn with Dataset

Is it possible to populate a column from a radGridView that has type RadGridMultiComboBoxColumn with a Dataset?
I want to fill each cell on event 'BeginEdit' and clear on EndEdit event
Can somebody help me?
Thanks

GridView

answered on 15 Nov 2011

1 answer

193 views

Raising or Firing ExpandGroup Event Programmatically

I have defined a group in a RadGridView using the following code:

Dim groupingDescriptor As New tlrkDt.GroupDescriptor

groupingDescriptor.GroupNames.Add("Period", System.ComponentModel.ListSortDirection.Ascending)

Me.rgvBids.GroupDescriptors.Add(groupingDescriptor)

Dim sortDescriptor As New tlrkDt.SortDescriptor

sortDescriptor.PropertyName = "Period"

Me.rgvBids.SortDescriptors.Add(sortDescriptor)

The user is able to expand and collapse the group by clicking on the arrow just before the group header. However, the user has requested to be able to expand/collapse the group by clicking on the group header itself.

How can I programmatically raise the event necessary for a RadGridView's group to expand and collapse when the user clicks on the header (not just the arrow)?

Thanks in advance for any help you may provide,

Hector

GridView

answered on 15 Nov 2011

1 answer

105 views

Recommended database back end?

I'm writing a desktop app that will be used on a single machine, single user (at a time).

It will need a database but the data is never likely to get beyond 100,000 records.

Any recommendations on a back end database?

I'm pretty familiar with SQL Server, so would SQL Server Express be good?

If so, how does that work? Does the SSExpress app need to be running before my app can access it? Or, does the act of accessing the data sufficient?

Thanks in advance for your help.

General Discussions

answered on 15 Nov 2011