Questions on UI for WinForms Forum

11 answers

161 views

GridView top Border missing in 2011 q2

Hi
I`ve downloaded 2011 q2
GridView not showing the top border,
I`ve set the Theme to ControlDefault and other Themes, but it`s not working.
tried to change border thikness and again not working
I`m sure I didn`t have this problem in 2011 q1.

if(It`s a bug in this release)
{
please fix it();
}
else
{
what`s the solution();
}

GridView

answered on 24 Jan 2012

5 answers

227 views

Non databinding performance

Hi,

I was wondering if the list view will improve its non-binding performance.

Our application uses the .NET list view and I'm seeing how well we can move to the telerik controls. So far the performance is terrible. When I moved our tree view to telerik, the performance was great, so this was a bit disappointing.

In my example below, the time for button1 to complete loading the telerik list view takes 18678ms, whereas the traditional Microsoft list view in button2 is 46ms.

When I add in some threading, the telerik list view needs about 65ms to draw before the form remains interactive, and takes 17765ms to add the list items. whereas the Microsoft list view needs 1ms per item and takes 136ms in total.

Will Telerik be improving this or should I find another way? I can't remember why I didn't try data binding, but I'll spend the afternoon reinvestigating it.

Imports Telerik.WinControls.UI

Public Class Form3

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()

Dim ListViewDetailColumn1 As Telerik.WinControls.UI.ListViewDetailColumn = New Telerik.WinControls.UI.ListViewDetailColumn("Column 0", "Column 0")

Dim ListViewDetailColumn2 As Telerik.WinControls.UI.ListViewDetailColumn = New Telerik.WinControls.UI.ListViewDetailColumn("Column 1", "Column 1")

Dim ListViewDetailColumn3 As Telerik.WinControls.UI.ListViewDetailColumn = New Telerik.WinControls.UI.ListViewDetailColumn("Column 2", "Column 2")

Dim ListViewDetailColumn4 As Telerik.WinControls.UI.ListViewDetailColumn = New Telerik.WinControls.UI.ListViewDetailColumn("Column 3", "Column 3")

Dim ListViewDetailColumn5 As Telerik.WinControls.UI.ListViewDetailColumn = New Telerik.WinControls.UI.ListViewDetailColumn("Column 4", "Column 4")

Dim ListViewDetailColumn6 As Telerik.WinControls.UI.ListViewDetailColumn = New Telerik.WinControls.UI.ListViewDetailColumn("Column 5", "Column 5")

Dim ListViewDetailColumn7 As Telerik.WinControls.UI.ListViewDetailColumn = New Telerik.WinControls.UI.ListViewDetailColumn("Column 6", "Column 6")

Dim ListViewDetailColumn8 As Telerik.WinControls.UI.ListViewDetailColumn = New Telerik.WinControls.UI.ListViewDetailColumn("Column 7", "Column 7")

Dim ListViewDetailColumn9 As Telerik.WinControls.UI.ListViewDetailColumn = New Telerik.WinControls.UI.ListViewDetailColumn("Column 8", "Column 8")

Dim ListViewDetailColumn10 As Telerik.WinControls.UI.ListViewDetailColumn = New Telerik.WinControls.UI.ListViewDetailColumn("Column 9", "Column 9")

Me.ListView1 = New Telerik.WinControls.UI.RadListView()

Me.ListView2 = New System.Windows.Forms.ListView()

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

Me.RadButton2 = New Telerik.WinControls.UI.RadButton()

Me.ColumnHeader1 = CType(New System.Windows.Forms.ColumnHeader(), System.Windows.Forms.ColumnHeader)

Me.ColumnHeader2 = CType(New System.Windows.Forms.ColumnHeader(), System.Windows.Forms.ColumnHeader)

Me.ColumnHeader3 = CType(New System.Windows.Forms.ColumnHeader(), System.Windows.Forms.ColumnHeader)

Me.ColumnHeader4 = CType(New System.Windows.Forms.ColumnHeader(), System.Windows.Forms.ColumnHeader)

Me.ColumnHeader5 = CType(New System.Windows.Forms.ColumnHeader(), System.Windows.Forms.ColumnHeader)

Me.ColumnHeader6 = CType(New System.Windows.Forms.ColumnHeader(), System.Windows.Forms.ColumnHeader)

Me.ColumnHeader7 = CType(New System.Windows.Forms.ColumnHeader(), System.Windows.Forms.ColumnHeader)

Me.ColumnHeader8 = CType(New System.Windows.Forms.ColumnHeader(), System.Windows.Forms.ColumnHeader)

Me.ColumnHeader9 = CType(New System.Windows.Forms.ColumnHeader(), System.Windows.Forms.ColumnHeader)

Me.ColumnHeader10 = CType(New System.Windows.Forms.ColumnHeader(), System.Windows.Forms.ColumnHeader)

Me.RadButton3 = New Telerik.WinControls.UI.RadButton()

Me.RadButton4 = New Telerik.WinControls.UI.RadButton()

Me.RadTextBox1 = New Telerik.WinControls.UI.RadTextBox()

Me.RadTextBox2 = New Telerik.WinControls.UI.RadTextBox()

CType(Me.ListView1, System.ComponentModel.ISupportInitialize).BeginInit()

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

CType(Me.RadButton2, System.ComponentModel.ISupportInitialize).BeginInit()

CType(Me.RadButton3, System.ComponentModel.ISupportInitialize).BeginInit()

CType(Me.RadButton4, System.ComponentModel.ISupportInitialize).BeginInit()

CType(Me.RadTextBox1, System.ComponentModel.ISupportInitialize).BeginInit()

CType(Me.RadTextBox2, System.ComponentModel.ISupportInitialize).BeginInit()

Me.SuspendLayout()

'

'ListView1

'

Me.ListView1.Anchor = CType((((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom) _

Or System.Windows.Forms.AnchorStyles.Left) _

Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)

ListViewDetailColumn1.HeaderText = "Column 0"

ListViewDetailColumn2.HeaderText = "Column 1"

ListViewDetailColumn3.HeaderText = "Column 2"

ListViewDetailColumn4.HeaderText = "Column 3"

ListViewDetailColumn5.HeaderText = "Column 4"

ListViewDetailColumn6.HeaderText = "Column 5"

ListViewDetailColumn7.HeaderText = "Column 6"

ListViewDetailColumn8.HeaderText = "Column 7"

ListViewDetailColumn9.HeaderText = "Column 8"

ListViewDetailColumn10.HeaderText = "Column 9"

Me.ListView1.Columns.AddRange(New

Telerik.WinControls.UI.ListViewDetailColumn() {ListViewDetailColumn1, ListViewDetailColumn2, ListViewDetailColumn3, ListViewDetailColumn4, ListViewDetailColumn5, ListViewDetailColumn6, ListViewDetailColumn7, ListViewDetailColumn8, ListViewDetailColumn9, ListViewDetailColumn10})

Me.ListView1.GroupItemSize = New System.Drawing.Size(200, 20)

Me.ListView1.ItemSize = New System.Drawing.Size(200, 20)

Me.ListView1.ItemSpacing = -1

Me.ListView1.Location = New System.Drawing.Point(49, 67)

Me.ListView1.Name = "ListView1"

Me.ListView1.Size = New System.Drawing.Size(782, 629)

Me.ListView1.TabIndex = 1

Me.ListView1.ViewType = Telerik.WinControls.UI.ListViewType.DetailsView

'

'ListView2

'

Me.ListView2.Columns.AddRange(New System.Windows.Forms.ColumnHeader() {Me.ColumnHeader1, Me.ColumnHeader2, Me.ColumnHeader3, Me.ColumnHeader4, Me.ColumnHeader5, Me.ColumnHeader6, Me.ColumnHeader7, Me.ColumnHeader8, Me.ColumnHeader9, Me.ColumnHeader10})

Me.ListView2.Location = New System.Drawing.Point(49, 67)

Me.ListView2.Name = "ListView2"

Me.ListView2.Size = New System.Drawing.Size(782, 629)

Me.ListView2.TabIndex = 2

Me.ListView2.UseCompatibleStateImageBehavior = False

Me.ListView2.View = System.Windows.Forms.View.Details

'

'RadButton1

'

Me.RadButton1.Location = New System.Drawing.Point(49, 37)

Me.RadButton1.Name = "RadButton1"

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

Me.RadButton1.TabIndex = 3

Me.RadButton1.Text = "RadButton1"

'

'RadButton2

'

Me.RadButton2.Location = New System.Drawing.Point(185, 37)

Me.RadButton2.Name = "RadButton2"

Me.RadButton2.Size = New System.Drawing.Size(130, 24)

Me.RadButton2.TabIndex = 3

Me.RadButton2.Text = "RadButton2"

'

'RadButton3

'

Me.RadButton3.Location = New System.Drawing.Point(353, 12)

Me.RadButton3.Name = "RadButton3"

Me.RadButton3.Size = New System.Drawing.Size(130, 24)

Me.RadButton3.TabIndex = 4

Me.RadButton3.Text = "RadButton3"

'

'RadButton4

'

Me.RadButton4.Location = New System.Drawing.Point(489, 12)

Me.RadButton4.Name = "RadButton4"

Me.RadButton4.Size = New System.Drawing.Size(130, 24)

Me.RadButton4.TabIndex = 4

Me.RadButton4.Text = "RadButton4"

'

'RadTextBox1

'

Me.RadTextBox1.Location = New System.Drawing.Point(353, 37)

Me.RadTextBox1.Name = "RadTextBox1"

Me.RadTextBox1.Size = New System.Drawing.Size(100, 20)

Me.RadTextBox1.TabIndex = 5

Me.RadTextBox1.TabStop = False

Me.RadTextBox1.Text = "65"

'

'RadTextBox2

'

Me.RadTextBox2.Location = New System.Drawing.Point(489, 37)

Me.RadTextBox2.Name = "RadTextBox2"

Me.RadTextBox2.Size = New System.Drawing.Size(100, 20)

Me.RadTextBox2.TabIndex = 5

Me.RadTextBox2.TabStop = False

Me.RadTextBox2.Text = "1"

'

'Form3

'

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

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

Me.ClientSize = New System.Drawing.Size(880, 724)

Me.Controls.Add(Me.RadTextBox2)

Me.Controls.Add(Me.RadTextBox1)

Me.Controls.Add(Me.RadButton4)

Me.Controls.Add(Me.RadButton3)

Me.Controls.Add(Me.RadButton2)

Me.Controls.Add(Me.RadButton1)

Me.Controls.Add(Me.ListView2)

Me.Controls.Add(Me.ListView1)

Me.Name = "Form3"

Me.Text = "Form3"

CType(Me.ListView1, System.ComponentModel.ISupportInitialize).EndInit()

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

CType(Me.RadButton2, System.ComponentModel.ISupportInitialize).EndInit()

CType(Me.RadButton3, System.ComponentModel.ISupportInitialize).EndInit()

CType(Me.RadButton4, System.ComponentModel.ISupportInitialize).EndInit()

CType(Me.RadTextBox1, System.ComponentModel.ISupportInitialize).EndInit()

CType(Me.RadTextBox2, System.ComponentModel.ISupportInitialize).EndInit()

Me.ResumeLayout(False)

Me.PerformLayout()

End Sub

Private WithEvents ListView1 As Telerik.WinControls.UI.RadListView

Friend WithEvents ListView2 As System.Windows.Forms.ListView

Friend WithEvents RadButton1 As Telerik.WinControls.UI.RadButton

Friend WithEvents RadButton2 As Telerik.WinControls.UI.RadButton

Friend WithEvents ColumnHeader1 As System.Windows.Forms.ColumnHeader

Friend WithEvents ColumnHeader2 As System.Windows.Forms.ColumnHeader

Friend WithEvents ColumnHeader3 As System.Windows.Forms.ColumnHeader

Friend WithEvents ColumnHeader4 As System.Windows.Forms.ColumnHeader

Friend WithEvents ColumnHeader5 As System.Windows.Forms.ColumnHeader

Friend WithEvents ColumnHeader6 As System.Windows.Forms.ColumnHeader

Friend WithEvents ColumnHeader7 As System.Windows.Forms.ColumnHeader

Friend WithEvents ColumnHeader8 As System.Windows.Forms.ColumnHeader

Friend WithEvents ColumnHeader9 As System.Windows.Forms.ColumnHeader

Friend WithEvents ColumnHeader10 As System.Windows.Forms.ColumnHeader

Friend WithEvents RadButton3 As Telerik.WinControls.UI.RadButton

Friend WithEvents RadButton4 As Telerik.WinControls.UI.RadButton

Friend WithEvents RadTextBox1 As Telerik.WinControls.UI.RadTextBox

Friend WithEvents RadTextBox2 As Telerik.WinControls.UI.RadTextBox

Dim list As New List(Of String())

Private Sub Form3_Load(sender As Object, e As System.EventArgs) Handles Me.Load

For i = 0 To 300

list.Add({"one " + i.ToString,

"two " + i.ToString,

"three " + i.ToString,

"four " + i.ToString,

"five " + i.ToString,

"six " + i.ToString,

"seven " + i.ToString,

"eight " + i.ToString,

"nine " + i.ToString,

"ten " + i.ToString})

Next

End Sub

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

ListView1.BringToFront()

ListView1.Items.Clear()

time = New Stopwatch()

For Each i In list

Dim li As New ListViewDataItem(i(0), i.ToArray())

time.Start()

ListView1.Items.Add(li)

time.Stop()

Next

msg()

End Sub

Private Sub RadButton2_Click(sender As System.Object, e As System.EventArgs) Handles RadButton2.Click

ListView2.BringToFront()

ListView2.Items.Clear()

time = New Stopwatch()

For Each i In list

Dim li As New ListViewItem(i(0))

li.SubItems.AddRange(i.Skip(1).ToArray())

time.Start()

ListView2.Items.Add(li)

time.Stop()

Next

msg()

End Sub

Dim time As Stopwatch

Private Sub RadButton3_Click(sender As System.Object, e As System.EventArgs) Handles RadButton3.Click

ListView1.BringToFront()

ListView1.Items.Clear()

Dim wait = CInt(RadTextBox1.Text)

time = New Stopwatch()

Threading.Tasks.Task.Factory.StartNew(

Sub()

Dim last = list.Last()

For Each i In list

Dim ii = i

Dim li As New ListViewDataItem(i(0), i.ToArray())

Threading.Thread.Sleep(wait)

Me.BeginInvoke(

Sub()

time.Start()

ListView1.Items.Add(li)

time.Stop()

If ii Is last Then msg()

End Sub)

Next

End Sub)

End Sub

Sub msg()

MsgBox("Total is " + time.ElapsedMilliseconds.ToString)

End Sub

Private Sub RadButton4_Click(sender As System.Object, e As System.EventArgs) Handles RadButton4.Click

ListView2.BringToFront()

ListView2.Items.Clear()

time = New Stopwatch()

Dim wait = CInt(RadTextBox2.Text)

Threading.Tasks.Task.Factory.StartNew(

Sub()

Dim last = list.Last()

For Each i In list

Dim ii = i

Dim li As New ListViewItem(i(0))

li.SubItems.AddRange(i.Skip(1).ToArray())

Threading.Thread.Sleep(wait)

Me.BeginInvoke(

Sub()

time.Start()

ListView2.Items.Add(li)

time.Stop()

If ii Is last Then msg()

End Sub)

Next

End Sub)

End Sub

End Class

My experience with .Net is 7 years. My experience with Rad is about 2 weeks.

OS version and applied service packs

Microsoft Windows Server 2003, Standard Edition, Service Pack 2

Regional and language settings, if different from En-US

English (Australia)

.NET version (.NET2, .NET3, .NET3.5)

.NET 4.0.30319 SP1Rel, Visual Studio 2010 Version 10.0.40219.1 SP1Rel

Exact version of the Telerik product

Runtime Version v2.0.50727, Version 2011.2.11.831

ListView

answered on 24 Jan 2012

2 answers

183 views

No borders when exporting to PDF

I have a RadRichTextBox control, it loads content from DOCX file and then it can be modiified, but when to export to PDF, the file is created correctly, the tables have the correct sizes, but can't draw the border, I tried to make the line width bigger, using some colors, but nothing works, even if I load the first content via HTML.

RichTextBox (obsolete as of Q3 2014 SP1)

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3 answers

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Fixed stack panel header

Is it possible to fix the stack panel header? By default, the header text reflects the selected page's text.

I've attached the header outlined in red. Thanks.

PageView

answered on 23 Jan 2012

1 answer

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GridViewComboBoxColumn contents not appearing on first time click only

I have a GridView with a GridViewComboBox column. I create a datasource in the Load handler of the form but do not assign it to the GridViewComboBox yet. The datasource is an IQueryable object and is located in the class accessible to all methods of the class.

private IQueryable<BUILDING> dataBuildings;

The GridViewComboBox datasource gets assigned in the CellEditorInitialized event handler of the gridView.

When the app runs and I click in the cell with the combobox, the contents of the dropdown are empty but the size of the dropdown is as if it were filled. If I click on another cell, same row or another row, and then click back into the combobox cell, the contents are filled as expected.

Why would this be?

GridView

answered on 23 Jan 2012

4 answers

313 views

How to removed dotted vertical line in CommandBar?

Hi!

How can I remove the dotted vertical line positioned on the left side of a CommandBar?

Thanks!

CommandBar

answered on 23 Jan 2012

15 answers

3.1K+ views

You can right click to click button

Hi Telerik

I face this case: we can you click a button by using right click of the mouse. How to disable it?
Thanks

Buttons, RadioButton, CheckBox, etc

answered on 21 Jan 2012

3 answers

531 views

Creating RAD MDI parent and child form

Hi Telerik Support Team:

How to create a Rad MDI form to the application ?
Because I see there is no option to add the MDI form from the add windows forms dialog.
I like to have a RadRibbonForm as my MDI parent form -- How to do this?
and how to add RadForm as MDI child form for the above RadRibbonForm (MDI parent form)

Expecting your valuable reply please.
Regards,
Thiru.

Form

answered on 21 Jan 2012

2 answers

491 views

Editable GridViewComboBoxColumn

I need to have a column in the grid where a user can either select a value from a list or type in a value. For example, if the user is enter a face amount for a life insurance policy the user can either select one of these three options: Minimum, Maximum, Target or enter a number from 100,000 to 10,000,000.

I tried using the GridViewComboBoxColumn and setting the DropDownStyle to DropDown. This allowed me to edit the value in the cell, but when I leave the cell, the cell's display value flips back to what it was previously.

In the example attached, click on the first row where it says 'Minimum' and type in 100000, then hit the tab key to move to a new cell. The cell flips from 100000 back to 'Minimum'.

Is there a way to use the GridViewComboBoxColumn to allow the user to either select a value from the drop down list or type in a value?

Here is the Form1.Designer.cs file:

namespace GridComboBoxColumn

{

partial class Form1

{

/// <summary>

/// Required designer variable.

/// </summary>

private System.ComponentModel.IContainer components = null;

/// <summary>

/// Clean up any resources being used.

/// </summary>

/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>

protected override void Dispose(bool disposing)

{

if (disposing && (components != null))

{

components.Dispose();

}

base.Dispose(disposing);

}

#region Windows Form Designer generated code

/// <summary>

/// Required method for Designer support - do not modify

/// the contents of this method with the code editor.

/// </summary>

private void InitializeComponent()

{

this._grid = new Telerik.WinControls.UI.RadGridView();

((System.ComponentModel.ISupportInitialize)(this._grid)).BeginInit();

this.SuspendLayout();

//

// _grid

//

this._grid.Location = new System.Drawing.Point(13, 13);

this._grid.Name = "_grid";

this._grid.Size = new System.Drawing.Size(259, 237);

this._grid.TabIndex = 0;

this._grid.Text = "radGridView1";

//

// Form1

//

this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);

this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;

this.ClientSize = new System.Drawing.Size(284, 262);

this.Controls.Add(this._grid);

this.Name = "Form1";

this.Text = "Form1";

((System.ComponentModel.ISupportInitialize)(this._grid)).EndInit();

this.ResumeLayout(false);

}

#endregion

private Telerik.WinControls.UI.RadGridView _grid;

}

Here is the sample Form1.cs file:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using Telerik.WinControls.Primitives;

using Telerik.WinControls.UI;

namespace GridComboBoxColumn

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

SetupGrid();

}

private void SetupGrid()

{

// Add Column

{

GridViewComboBoxColumn column = new GridViewComboBoxColumn();

column.Name = "Policy.FaceAmount";

column.HeaderText = "Total Face Amount";

column.ValueMember = "Value";

column.DisplayMember = "Name";

column.DropDownStyle = Telerik.WinControls.RadDropDownStyle.DropDown;

column.ReadOnly = false;

BindingList<QuestionSelectionItem> list = new BindingList<QuestionSelectionItem>();

list.Add(new QuestionSelectionItem("Minimum", "MIN"));

list.Add(new QuestionSelectionItem("Maxmimum", "MAX"));

list.Add(new QuestionSelectionItem("Target", "TGT"));

column.DataSource = list;

_grid.Columns.Add(column);

}

// Add Row

{

// First Row

{

GridViewRowInfo row = _grid.Rows.AddNew();

row.Cells["Policy.FaceAmount"].Value = "MIN";

}

// Second Row

{

GridViewRowInfo row = _grid.Rows.AddNew();

row.Cells["Policy.FaceAmount"].Value = "100000";

}

// Third Row

{

GridViewRowInfo row = _grid.Rows.AddNew();

row.Cells["Policy.FaceAmount"].Value = "MAX";

}

protected class QuestionSelectionItem

{

private string _name = null;

private string _value = null;

public QuestionSelectionItem(string aName, string aValue)

{

_name = aName;

_value = aValue;

}

public string Name

{

get { return _name; }

set { _name = value; }

}

public string Value

{

get { return _value; }

set { _value = value; }

}

GridView

answered on 20 Jan 2012

4 answers

344 views

Add a DateTimePicker to a CommandBar

Hi,
I would like to add a DateTimePicker to a CommandBar. Is this Possible? How can it be done?
Thanks

CommandBar

answered on 20 Jan 2012