Questions on UI for WinForms Forum

1 answer

99 views

Hi, how to change Word Icon to solid? I dont want the transperency effect. Scroll out the properties but I didnt found what I want.

Carousel

answered on 13 Oct 2014

1 answer

156 views

Alternate height for rows

I use a listview to display an image in a row and a description in another row. I'm trying to change the height of a smaller description but not work.

Private Sub RadListView1_VisualItemFormatting(sender As Object, e As ListViewVisualItemEventArgs) Handles RadListView1.VisualItemFormatting

e.VisualItem.ImageLayout = ImageLayout.Stretch

If Convert.ToInt32(e.VisualItem.Tag) / 2 = 0 Then 'images

e.VisualItem.BackColor = Color.Azure

e.VisualItem.Size = New Size(950, 259)

Else 'descripcion of image

e.VisualItem.BackColor = Color.Black

e.VisualItem.Font = New Font("Consolas", 20, FontStyle.Bold)

e.VisualItem.Size = New Size(950, 50)

End If

End Sub

ListView

answered on 13 Oct 2014

1 answer

208 views

Nodes order after Drag&Drop

Hi,

I have trouble with node dragging. It can be reproduced in your demo "Demo Application - Telerik UI for WinForms Q2 2014 SP1". Select "Tree View" -> "Drag & Drop". I am using left tree.
1. Click on the node "Drafts";
2. Press shift button and click on the "Outbox" node;
3. Release shift button;
4. Press left mouse button on the "Outbox" node and start dragging;
5. Drop selected nodes after node "Large Mail".

You can see that order of nodes was changed.
Before: "Drafts", "Inbox" and "Outbox"
After: "Outbox", "Drafts" and "Inbox"

How I can change this behavior?

Treeview

answered on 13 Oct 2014

5 answers

877 views

[Solved] can't find ExportToExcelML method

I am using RadControls for WinForms Q2 2010 SP2

I tried to use gridview to export data to Excel.

I have following namespaces:

Imports

Telerik.WinControls

Imports

Telerik.WinControls.UI

Imports

Telerik.WinControls.UI.Export

Imports

Telerik.WinControls.Data

But I can't get ExportToExcelML method to come up when I code

Dim

exporter As ExportToExcelML = New ExportToExcelML(Me.gridview)

Did I miss anything?

GridView

answered on 13 Oct 2014

1 answer

84 views

Reflecting Custom Object Changes in RGV Hierarchy

Hi,

I am using the hierarchy feature of the data grid. My data consist of two custom objects one composed of the other.

class MyClassA : INotifyPropertyChanged

{

String Porperty1 {get; set;}

BindiingList<MyClassB> Items {get; set;}

//...

}

class MyClassB : INotifyPropertyChanged{

String Property1 {get; set;}

int Property2{ get; set;}

//...

}

(My actual classes invoke the PropertyChanged event. I did not show the full setters here for simplicity.)

I am setting a BindingList<MyClassA> as the data source for the grid view. I understand from this post here that you must handle the change event on the data grid when using the hierarchy view. I did this below:

private void dataGrid_CellValueChanged(object sender, GridViewCellEventArgs e)

{

//if the column is from the child view we must handle the change to the data model directly

if(e.Column.OwnerTemplate == gridViewTemplate1)

{

var b = e.Row.DataBoundItem as MyClassB;

var property = typeof(MyClassB).GetProperty(e.Column.FieldName);

property.SetValue(b, e.Value, null);

}

This works for updating the data model when changes are made to the UI. How do I see changes reflected in the UI when changes are made to the model?

GridView

answered on 10 Oct 2014

3 answers

171 views

Grid is not saving layout when columns are grouped

We allow our users to reorder columns. Everything works when there is no grouping. I looked at xml layout and columns are saved in order they appear on screen.
But when we create groups programmaticaly the saved layout is always the same. Even if I reorder groups xml layout save doesn't change.
I tried to modify it by hand and reload and it worked. I moved columns of groups in and they appeared in modified order on screen.

One solution is to modify layout returned by grid to make it in line with order of groups on screen and then save it. But I don't like it.

I'm using Version=2012.1.321.20

GridView

answered on 10 Oct 2014

3 answers

255 views

[Solved] FullRowSelect disable

Hi,

I'm trying to disable to fullrowselect in a ListView with detail as its viewtype and thereby only have a one or more cells selected.
Please see the code below:

public partial class ListViewFullRowSelect : Form

{

public ListViewFullRowSelect()

{

InitializeComponent();

radListView1.ViewType = Telerik.WinControls.UI.ListViewType.DetailsView;

radListView1.FullRowSelect = false;

List<Test> testList = new List<Test>();

Random r = new Random();

for (int i = 0; i < 500; i+=3)

{

int nextvalue = r.Next(10)+1;

testList.Add(new Test(i, i + " times " + nextvalue+ " = " + i * nextvalue));

}

radListView1.DataSource = testList;

}

public class Test

{

public int id { get; set; }

public string result { get; set; }

public Test(int id, string name)

{

this.id = id;

this.result = name;

}

Is what i'm trying to do possible or does it conflict with the whole idea of listview?

Regards,
Thomas

ListView

answered on 09 Oct 2014

8 answers

265 views

[Solved] Problems with shortcuts in RadRichTextbox

Hi.

I'm a little new in telerik controls, but i have a problem with RichTextbox. When I try to type letter 'ą', which is combination of keys Alt + a, the text in control is selected but I have not the letter 'ą' in my control. Is there any possible to disable shortcuts in RichTextBox ?
Thanks for the response.
Best regards
Lukasz

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 09 Oct 2014

1 answer

116 views

[Solved] Create Filtered Dataset from Filtered RadGridView

Is there any way to take a filtered RadGridView and create a corresponding dataset that can be passed to a Telerik report? How do I even get to the filter expression for the GridView? I have found examples of how to get the filter expression on a RadGrid but not a RadGridView. Thanks.

GridView

answered on 08 Oct 2014

1 answer

1.9K+ views

[Solved] Memory Leak after disposing a dialog?

Hi

( Please if I'm wrong with my understanding of this rectify me )

Reading about good and bad programming practices I heared that when calling a ShowDialog method (at least in a normal Windows.Form) that Form is not disposed after the DialogResult is sent, the Form remain in memory so it will be disposed manually, well, then following that good practices that is was I'm trying to do with a RadForm, this is the code:

If ConfigureCorner.ShowDialog() = Windows.Forms.DialogResult.OK Then

Telerik.WinControls.RadMessageBox.Show(Me,

"Action applied",

Me.Name,

MessageBoxButtons.OK,

Telerik.WinControls.RadMessageIcon.Info)

End If

ConfigureCorner.Dispose

The problem is that every time that I call ShowDialog after the Form is disposed for first time the memory increases like 5-10 mb each time, and it needs much execution time to display the Form and its controls.

I attached an image to show the Form contents, but his is the detailed content of the RadForm:

· 3 different themes

· 15 RadButtons
· 5 RadCheckBoxes
· 1 RadDropDownList
· 8 RadGroupBoxes
· 21 RadLabels
· 1 RadPageView
· 12 RadPageViewPages
· 2 RadRadioButtons
· 12 RadSeparators
· 8 RadTextBoxControls

· 2 Custom dialogs for open folder/files.

As you see seems that I'm not using anything special that should 'cause this memory leak,
the images of the controls are set directlly in the designer property grid as 'Image' property,
I'm not loading or instancing any disposable object before closing the RadForm.

Also, I'm trying to force garbage collecting aftear each call to Dispose method after calling ShowDialog, but that does not solve anything:

GC.Collect()

GC.WaitForPendingFinalizers()

GC.WaitForFullGCApproach()

GC.WaitForFullGCComplete()

GC.Collect()

This is normal?

Any information will be very appreciated, thanks in advance.

Form