Questions on UI for WinForms Forum

1 answer

105 views

DropDownList with datasource, not working as expected

Hello,

I try to use DropDownList with datasource, but is not working as expected.

When I Clear() the BindingSource, the RAD component still have "Text" with last item displayed which is abnormal.

Please see the code, the normal windows ComboBox works as expected.

Any fixes?

public partial class Form1 : Form

{

List<string> list = new List<string>();

BindingSource bsource = new BindingSource();

public Form1()

{

InitializeComponent();

bsource.DataSource = list;

}

private void Form1_Load(object sender, EventArgs e)

{

//Set list dataSource

comboBox1.DataSource = bsource;

radDropDownList1.DataSource = bsource;

//Now add an element via Binding object

bsource.Add("One");

bsource.Add("Two");

}

private void button1_Click(object sender, EventArgs e)

{

bsource.Add("Three");

}

private void button2_Click(object sender, EventArgs e)

{

bsource.Clear();

}

DropDownList

answered on 08 Jun 2015

1 answer

128 views

Event VisibleRange?

Hi to all,

in past I used ScheduleView for WPF and Silverlight.

Now I have to use Scheduler for WinForm, but I need to populate DataSource every time change period range, indipendently ViewType.

I need to this features because I can't link this control directly to my database, then I need to know when user change period range that he see.

Is it possible?

In WPF and Silverlight I used VisibleRange event.

Scheduler and Reminder

answered on 08 Jun 2015

5 answers

524 views

Buttons can be clicked with middle or right click

We've run into some situations where a right click on a particular Telerik control behaves in the way we expect only a left click to behave.

For example, we have a Command Bar with a bunch of buttons. If you right click one of the buttons, the Click event occurs and our application ends up doing the logic associated with the button. End users are confused because they don't expect a right-click to trigger a button click. The same goes for the middle click. It seems like the buttons in a command bar should only raise the Click event if they are clicked with the left mouse (assuming right-handed mouse). I'm not sure if the command bar supports keyboard navigation....but if so, then pressing the spacebar with the button focused should also trigger the Click event.

For normal buttons, this seems to work as I expect (right or middle click does nothing, spacebar triggers click event, etc.). I also found this old forum thread that talked about similar issues that I think have been fixed: http://www.telerik.com/forums/you-can-right-click-to-click-button

There are two other places where I've noticed right click works and I think those are bugs as well.

1. Checkboxes can be checked/unchecked by right/middle clicking on them (or clicking on the label). That seems wrong to me. The checkboxes inside of tree views also have this problem. However, checkboxes inside grids don't seem to have this problem.

2. I can open dropdowns by right/middle clicking the little down arrow on the right edge of the dropdown. That seems wrong.

Finally, I've noticed that buttons show the 'clicked' state on mouse down of the middle button. That doesn't seem right although I'm not 100% about that. The mouse down state also appears for right click if I right click enough time. This happens even on regular buttons.

Hopefully my explanations of the various issues I'm seeing make sense. I can see all of these problems in the demos included with the installation so I don't think any of them are issues with my code.

CommandBar

answered on 05 Jun 2015

3 answers

96 views

Dock host window Scrollbars

Hi Telerik,

I'm trying to use RadDock in Your Demos and i have a problem:
When I add alot of documents ( such as 20 docs), the main screen only show 10 documents and i must click to OverlowDropdownButton on the right to know all document opened.

I wants to ask:
1. How to show Next and Previous Button beside OverflowDropdownButton

I tried all samples from here:

http://www.telerik.com/community/forums/winforms/dock/next-and-previous-button.aspx

but doesnt work with Q3 2012 SP1, why? Buttons are drawn, but program crashes on close and list button, scoll buttons have no function.

Thanks in advance

Dock

answered on 05 Jun 2015

1 answer

125 views

Smart Labels not working properly

I have a PieChart and when I enable the Smart Labels, it's doesn't work correctly.

I've attached two pictures, without smart labels and with smart labels enabled.

ChartView

answered on 05 Jun 2015

3 answers

213 views

Hyperlink in ProperyGrid and more subgroups

Hello Telerik,

I have two small questions about PropertyGrid.

1. Is possible to have a hyperlink in one Property Value (not entire column, just one or several values to be URL)

2. I've tested the nice feature of grouping. Can I have more sub-groups there, or expandable one, eg:

Distributors (main group)

Belnor ( sub group)

Property - Value

Kirkwald (sub group)

Property - Value

Thanks in advance,

PropertyGrid

answered on 05 Jun 2015

0 answers

141 views

Change text of a cell with checkbox

Hello.

I want to change the text of the column in listview with checkbox

I have

Public Sub lvRegDePedido_ItemCheckedChanged(sender As Object, e As ListViewItemEventArgs) Handles lvRegDePedido.ItemCheckedChanged

formatoDeCellda()

End Sub

Private Sub formatoDeCellda()

Try

Dim e As ListViewCellFormattingEventArgs

e = Nothing

If e.CellElement.Data.HeaderText = "Estado del articulo" Then

If e.CellElement.Text = "No entregado" Then

e.CellElement.ForeColor = Color.Aqua

End If

Catch ex As Exception : MsgBox(ex.Message)

End Try

End Sub

I work in the trial version (demo)

Adj Img

CheckedListBox

asked on 04 Jun 2015

1 answer

85 views

Password Textbox support similar to Android EditText

Hello

Does RadControls have a textbox where in I can implement a textbox password field similar to Android Environment.

I should be able to enter a character, display the character entered for a few milliseconds before masking it using "asterix" or any other password

character. Also I should be able to edit/insert/delete any character anywhere in the content.

TextBox

answered on 04 Jun 2015

1 answer

111 views

Bypass the cell selection behavior or make the rows non selectable

I have a grid (Q2 2014 SP1) with several columns and one checkbox column. The checkbox is the only information that can be modified by the users. Now, depending on the checkbox state, I paint the row using this code (where "IsConcilie" is the checkbox's column name):

if (row.Cells["IsConcilie"].Value.Equals(true))
{
rowElement.DrawFill = true;
rowElement.GradientStyle = GradientStyles.Solid;
rowElement.BackColor = Color.Gray;
rowElement.ForeColor = Color.White;
}
else
{
rowElement.ResetValue(LightVisualElement.BackColorProperty, ValueResetFlags.Local);
rowElement.ResetValue(LightVisualElement.GradientStyleProperty, ValueResetFlags.Local);
rowElement.ResetValue(LightVisualElement.DrawFillProperty, ValueResetFlags.Local);
rowElement.ResetValue(LightVisualElement.ForeColorProperty, ValueResetFlags.Local);
}

The problem I have is when one of the cell is clicked, the cell is selected and painted using the default colors which makes the cell hard to read because it keeps my foreground color setting.

Since only the checkbox can be modified, is here a way we can prevent the selected cell to paint using the default painting behavior? Or how can I handle the painting of the cell myself and bypass the default settings? Or even, can we make the rows non-selectable?

Thanks.

GridView

answered on 03 Jun 2015

1 answer

96 views

Minimum column widths using ColumnGroups

Trying to implement this feature-

http://feedback.telerik.com/Project/154/Feedback/Details/112143-fix-horizontal-scroll-bar-should-appear-when-auto-size-columns-mode-is-enabled-a

With ColumnGroups and it does not seem to honor the minimum column widths. Is there a way to implement scrolling when using auto sized columns when the view has been put into ColumnGroups?

GridView

answered on 03 Jun 2015