Questions on UI for WinForms Forum

5 answers

177 views

[Solved] How to Allow Add New Row in all self-referencing hierarchical level?

In GridView/self-referencing WinForms demo sample,how to 'AllowAddNewRow' in all hierarchical level?
Best Regards.

GridView

answered on 12 Dec 2010

3 answers

218 views

[Solved] Issue Trying To Run 3-Level Hierarchy

Hi I am trying to run a routine that is to show three levels of hierarchy thus:-

Main Level RadGridView ('rgvInletDetails')       CylinderID, some fields.....        Bound to 'Inlet' Table
Second Level Template   ('CylTemplate')          CylinderID, some fields ........    Bound to 'Cylinders' table
Third Level Template     ('CylGasTemplate')      CylinderID, some fields .......     Bound to 'CylinderGas' table

My routine to accomplish this is as follows:-
======================================================================

Dim CylRelation                 As GridViewRelation
Dim CylGasRelation          As GridViewRelation
Dim CylTemplate               As GridViewTemplate
Dim CylGasTemplate        As GridViewTemplate

'setup the master template
rgvInletDetails.MasterTemplate.Columns.Clear
rgvInletDetails.MasterTemplate.AddNewRowPosition = SystemRowPosition.Top
rgvInletDetails.MasterTemplate.AllowAddNewRow = True
PopInletDetails(rgvInletDetails) ' Binding Source for rgvInletDetails.DataSource = 'Inlet' table

'setup the Cylinder child template (Level 2)
CylTemplate                                          = New GridViewTemplate()
CylTemplate.Caption                           = "Cylinders"
CylTemplate.AllowAddNewRow      = True
PopCylinderData(CylTemplate)                                                                'setup BindingSource for level 2 with 'Cylinder' table
rgvInletDetails.MasterTemplate.Templates.Add(CylTemplate)         ' add 2nd Level Template to MasterTemplates

'setup the CylinderGas child template (Level 3)
CylGasTemplate                                     = New GridViewTemplate()
CylGasTemplate.Caption                      = "Cylinder Gas"
CylGasTemplate.AllowAddNewRow = True
PopCylinderGas(CylGasTemplate)                                                         'setup BindingSource for level 3 with 'CylinderGas' table
rgvInletDetails.MasterTemplate.Templates.Add(CylGasTemplate)  ' add 3rd Level Template to MasterTemplates

'create the Cylinder relation
Cylrelation                                            = New GridViewRelation(rgvInletDetails.MasterTemplate)
CylRelation.ParentTemplate              = rgvInletDetails.MasterTemplate
Cylrelation.ChildTemplate                 = CylTemplate
Cylrelation.RelationName                  = "Cylinders"
Cylrelation.ParentColumnNames.Add("CylinderID")
Cylrelation.ChildColumnNames.Add("CylinderID")
rgvInletDetails.Relations.Add(Cylrelation)

'create the CylinderGas relation
CylGasRelation                                   = New GridViewRelation(rgvInletDetails.MasterTemplate)
CylGasRelation.ParentTemplate      = CylTemplate
CylGasRelation.ChildTemplate        = CylGasTemplate
CylGasRelation.RelationName         = "CylinderGas"
CylGasRelation.ParentColumnNames.Add("CylinderID")
CylGasRelation.ChildColumnNames.Add("CylinderID")
rgvInletDetails.Relations.Add(CylGasRelation)

================================================================

Ok - all done. Now when I run this the main grid is displayed correctly with a '+' showing there are records for the 2nd level. However, when I click on
that '+' button then I get this message:-

(see attachment 'errordisplay.jpg' )

Actually an example of a three level hierarchy would be invaluable as it isn't immediately clear on the set up for this arrangement. This requirement above is further complicated by the fact that both Relations have to specify the same field name and I was worried in case the grid thought that it might have to produce two Level 2 grids rather than a Level 2 and a Level 3. As it is I probably have this incorrectly specified. But it would be really nice if an example of both arrangements could be provided.

Many thanks for taking the time to read this and if there are any other details I can provide please ask.
I am using this in a VB.Net 2.0 VS2008 IDE for Windows Forms and the RadgridView is from the 2010.3.10.1109 release.

Does anyone in Telerik know what the message "measure override returned positive infinity" actually means? Can't find any trace of it on the Internet.

GridView

answered on 12 Dec 2010

3 answers

329 views

[Solved] SpinEditor sound when Enter key is hit

Hello,

I attempted to use RadSpinEditor to edit an integer value. Everything was fine with one exception: when Enter key is hit by the user (at the end, to announce the completion of the editing process), an annoying sound (beep) is heared. There is a way to get rid of this sound?

Mircea

SpinEditor

answered on 12 Dec 2010

8 answers

372 views

[Solved] Auto scroll when selecting rows with mouse

Hi,

is it possible to auto scroll GridView when selecting data with mouse?
When I click on first row and first cell, hold the mouse button and drag with mouse to select more rows, I need that GridView auto scrolls to show me rows, which did not fit in a page.
Because now I cannot select rows which are not visible.

Van Elpho

GridView

answered on 11 Dec 2010

5 answers

1.2K+ views

[Solved] DropDownList item Visibility

Hello,

In the old ListControl i was using the item.Visibility Collapsed to hide some items while some conditions are not met, in the new version with the DropDownList i've noticed that the visibility property no longer applies to the item, it applies to the visual item, and it no longer works as before, and even more than this the IsVisible property of the item is readOnly, can someone please tell me how should i hide an item and not leave a blank space in the list ?

Thank you very much,

Best Regards,
Emanuel Varga

DropDownList

answered on 11 Dec 2010

8 answers

194 views

[Solved] A Jacked Out Wizard Control

I don't like having to use a Tab Control or Panels to make a Wizard. It's a Pain

New Product Suggestions

answered on 11 Dec 2010

6 answers

317 views

[Solved] Using RadMenu in an MDI Parent & Child with button menu items leaks memory

Hello,

I've got this memory leak, could you guys give an explanation/workaround? I've made the simplest test case (see below), factors for the bug to occur (that I already discovered):

- it's an MDI form situation with parent & child
- the child is maximized (the menu items are added into one menubar)
- the menu item provided by the client is a menu button
- a textbox is on the child form

TestMdiParent.cs

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using Telerik.WinControls.UI;

namespace MenuMemoryLeak

{

public partial class TestMdiParent : Telerik.WinControls.UI.RadForm

{

public TestMdiParent()

{

InitializeComponent();

}

//NOTE this stuff with the backgroundworker is just to repeatedly close/open the form, I know it's not fully correct but the bug occurs nevertheless

BackgroundWorker myWorker = new BackgroundWorker() { WorkerReportsProgress = true, WorkerSupportsCancellation = false };

TestMdiChild myMdiChild;

private void TestMdiParent_Shown(object sender, EventArgs e)

{

myWorker.DoWork += delegate

{

int count = 0;

while(true)

{

++count;

myWorker.ReportProgress(count);

System.Threading.Thread.Sleep(1000);

}

};

myWorker.ProgressChanged += delegate

{

if(myMdiChild != null)

{

myMdiChild.Close();

System.GC.Collect();

}

myMdiChild = new TestMdiChild() { MdiParent = this };

myMdiChild.Show();

};

myWorker.RunWorkerAsync();

}



TestMdiParent

.Designer.cs

namespace MenuMemoryLeak

{

partial class TestMdiParent

{

/// <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.testMenuItem = new Telerik.WinControls.UI.RadMenuItem();

this.testParentMenu = new Telerik.WinControls.UI.RadMenu();

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

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

this.SuspendLayout();

//

// testMenuItem

//

this.testMenuItem.Name = "testMenuItem";

this.testMenuItem.Text = "Parent";

//

// TestMdiParent

//

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

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

this.ClientSize = new System.Drawing.Size(902, 523);

//

// testParentMenu

//

this.testParentMenu.Items.AddRange(new Telerik.WinControls.RadItem[] {

this.testMenuItem});

this.testParentMenu.Location = new System.Drawing.Point(0, 0);

this.testParentMenu.Name = "testParentMenu";

this.testParentMenu.Size = new System.Drawing.Size(902, 24);

this.testParentMenu.TabIndex = 1;

this.testParentMenu.Text = "radMenu1";

this.Controls.Add(this.testParentMenu);

this.IsMdiContainer = true;

this.Name = "TestMdiParent";

//

this.RootElement.ApplyShapeToControl = true;

this.Text = "TestMdiParent";

this.ThemeName = "ControlDefault";

this.Shown += new System.EventHandler(this.TestMdiParent_Shown);

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

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

this.ResumeLayout(false);

this.PerformLayout();

}

#endregion

private Telerik.WinControls.UI.RadMenuItem testMenuItem;

private Telerik.WinControls.UI.RadMenu testParentMenu;

}

TestMdiChild.cs

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using Telerik.WinControls;

namespace MenuMemoryLeak

{

public partial class TestMdiChild : Telerik.WinControls.UI.RadForm

{

public TestMdiChild()

{

InitializeComponent();

//NOTE required for bug to occur

this.WindowState = FormWindowState.Maximized;

}

TestMdiChild.Designer.cs

namespace MenuMemoryLeak

{

partial class TestMdiChild

{

/// <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.testMenuButtonItem = new Telerik.WinControls.UI.RadMenuButtonItem();

this.testChildMenu = new Telerik.WinControls.UI.RadMenu();

this.testTextBox = new Telerik.WinControls.UI.RadTextBox();

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

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

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

this.SuspendLayout();

//

// testMenuButtonItem

//

this.testMenuButtonItem.Name = "testMenuButtonItem";

this.testMenuButtonItem.Text = "Child";

//

// testChildMenu

//

this.testChildMenu.AllowMerge = false;

this.testChildMenu.IsMainMenu = false;

this.testChildMenu.Items.AddRange(new Telerik.WinControls.RadItem[] {

this.testMenuButtonItem});

this.testChildMenu.Location = new System.Drawing.Point(0, 0);

this.testChildMenu.Name = "testChildMenu";

this.testChildMenu.Size = new System.Drawing.Size(467, 24);

this.testChildMenu.TabIndex = 2;

this.testChildMenu.Text = "radMenu1";

//

// testTextBox

//

this.testTextBox.Location = new System.Drawing.Point(22, 23);

this.testTextBox.Name = "testTextBox";

this.testTextBox.Size = new System.Drawing.Size(100, 20);

this.testTextBox.TabIndex = 1;

this.testTextBox.TabStop = false;

this.testTextBox.Text = "test";

//

// TestMdiChild

//

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

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

this.ClientSize = new System.Drawing.Size(467, 268);

this.Controls.Add(this.testChildMenu);

this.Controls.Add(this.testTextBox);

this.Name = "TestMdiChild";

//

this.RootElement.ApplyShapeToControl = true;

this.Text = "TestMdiChild";

this.ThemeName = "ControlDefault";

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

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

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

this.ResumeLayout(false);

this.PerformLayout();

}

#endregion

private Telerik.WinControls.UI.RadMenuButtonItem testMenuButtonItem;

private Telerik.WinControls.UI.RadMenu testChildMenu;

private Telerik.WinControls.UI.RadTextBox testTextBox;

}

If you call the parent MDI form and let it run a bit you should see the GDI objects increase by one each second and never get released.

If you know a solution/workaround, thanks a lot

Frederik

Menu

answered on 11 Dec 2010

3 answers

187 views

GridViewColumnGroup show/hide

Hi all,
i need a simple feature - to hide/show a ColumnGroup (including all columns and ColumnGroups within).
something exactly like hide column method (via the column chooser).
thanks,
Gal.

GridView

answered on 11 Dec 2010

4 answers

199 views

[Solved] Navigator localization

Hi Telerik,

I am searching for an option to localize the schedule navigator, but haven't found any solution.

What is the best practise to localize the schedule navigator?

best regards

Ulrik

Scheduler and Reminder

answered on 11 Dec 2010

11 answers

661 views

RadGridView scrolls to end

My grid has grouping enabled. when i expand the group, and if the grid has a horizontal scrollbar, the grid automatically scrolls to the rightmost column.
Any clues as to why it could be doing this? Is there a property I can enable/disable to prevent this from happening.
Or workarounds?

Thanks
Anisha

GridView

answered on 11 Dec 2010