Questions on UI for WinForms Forum

1 answer

104 views

TextBlockFormatting not work properly in Datasource binding

I am binding a Datasource to RadCheckedDropDownList. This RadCheckedDropDownList have checked items. TextBlockFormatting not working binding time (Figure 1).
After binding i checked or unchecked item TextBlockFormatting working properly(Figure 2). I need a RadCheckedDropDownList like Figure 2..
Waiting for your favourable response.

Binding code...
RadCheckedDropDownList1.DataSource = Nothing
RadCheckedDropDownList1.CheckedMember = "vaIsProductVariant"
RadCheckedDropDownList1.DisplayMember = "ProductVariantValueID"
RadCheckedDropDownList1.ValueMember = "VariantValue"
RadCheckedDropDownList1.DataSource = value

Formatting Code....
Private Sub chkVariantValue_TextBlockFormatting(sender As Object, e As TextBlockFormattingEventArgs)

Dim token As TokenizedTextBlockElement = TryCast(e.TextBlock, TokenizedTextBlockElement)

If token IsNot Nothing Then
token.GradientStyle = Telerik.WinControls.GradientStyles.Solid
token.BackColor = ColorTranslator.FromHtml(TokenColor)
token.BorderColor = ColorTranslator.FromHtml(TokenColor)
token.SmoothingMode = Drawing2D.SmoothingMode.HighQuality
token.Shape = New RoundRectShape
End If

End Sub

CheckedDropDownList

answered on 30 Jul 2019

4 answers

534 views

CheckedDropDownList with Databound list with default checked items issue

I have a RadCheckedDropDownList that I am binding a BindingList to it. Some of the items in the list will have the CheckedMember property filled in. However, after the control loads, the items that are checked do not show up in TEXT area of the control. However, if you open the dropdown, you can see items checked. As soon as you uncheck or check an item, all the checked items do show up. This is a problem, I need the items that are checked by default to show up in the TEXT area. Below is my code that I use to bind my list to the control. Am I missing something?

private static void BindList (this RadCheckedDropDownList radDropDownList, BindingList<CheckedListItem> dropDownList, string valueMember = "Key", string displayMember = "Value", string checkedMember = "Checked")
{
radDropDownList.BeginUpdate();
radDropDownList.ValueMember = valueMember;
radDropDownList.DisplayMember = displayMember;
radDropDownList.CheckedMember = checkedMember;
radDropDownList.DataSource = dropDownList;
radDropDownList.EndUpdate();
radDropDownList.SelectedIndex = -1;
}

CheckedDropDownList

answered on 30 Jul 2019

1 answer

418 views

How to get ValueMember value of GridViewComboBoxColumn

Hi,
Is there anyway to retrieve the ValueMember value of GridViewComboBoxColumn in the CellEndEdit ? Thanks.

GridView

answered on 30 Jul 2019

10 answers

299 views

RadTextBoxControl auto complete

I've trying to get autocomplete working. After failing in my main project I created a test project with a single radtextboxcontrol and the following code from the docs, and I'm not getting any word suggestions.

I'd prefer to have something like

var items = new List{ "Matthew", "Mark", "Luke", "John"}

radTextBoxControl1.AutoCompleteItems.AddRange(items);

but that didn't work either.

Thanks.

namespace TelerikWinFormsApp1

{

public partial class RadForm1 : Telerik.WinControls.UI.RadForm

{

public RadForm1()

{

InitializeComponent();

AddAutoCompleteItems();

}

private void AddAutoCompleteItems()

{

this.radTextBoxControl1.AutoCompleteMode = AutoCompleteMode.Suggest;

RadListDataItemCollection autoCompleteItems = this.radTextBoxControl1.AutoCompleteItems;

autoCompleteItems.Add(new RadListDataItem("Luke"));

autoCompleteItems.Add(new RadListDataItem("Max"));

autoCompleteItems.Add(new RadListDataItem("Adam"));

autoCompleteItems.Add(new RadListDataItem("Henry"));

autoCompleteItems.Add(new RadListDataItem("Jack"));

autoCompleteItems.Add(new RadListDataItem("Ben"));

autoCompleteItems.Add(new RadListDataItem("Tyler"));

autoCompleteItems.Add(new RadListDataItem("Ethan"));

autoCompleteItems.Add(new RadListDataItem("David"));

autoCompleteItems.Add(new RadListDataItem("Mike"));

}

TextBoxControl

answered on 30 Jul 2019

4 answers

819 views

Label to the top of textbox?

Hi! I've found the TextPlacement property of DataLayoutControlItem, but the control is kept to the right of the label. Is it possible to place the control under the label with their lefts aligned?

DataLayout

answered on 30 Jul 2019

4 answers

125 views

Font issue in breadcrumb

Hello,

I have a font issue only for the question mark (?) in breadcrumb. I've tried some different themes. They all have the same issue. It doesn't depend on the theme.

Please see the attached picture.

I've found a similar thread in the forum, but the solution hasn't worked for me.

https://www.telerik.com/forums/set-usemnemonic-to-false-for-breadcrumb

Thank you by advance.

Treeview

answered on 29 Jul 2019

2 answers

319 views

After add BeginUpdate/EndUpdate, the the error

I have a gridview, I want to display in Master-Child mode. But the performance is really bad when loading data. I added BeginUpdate/EndUpdate before and after I want to load or modify some binding data. But I get the following error randomly after I modify my data several times.

GridView

answered on 29 Jul 2019

9 answers

710 views

Change RadChartView background color

Hello,

I'm desperately trying to change the color of the background of my chart (inside of the axis = plot area in Excel - see attached). I tried the background property for the area, the grid... I also tried to alternate the same color in my grid.

How should I do that?

Thanks,

Mathias

ChartView