.NET Framework 4.8

Telerik controls 2022 R1

Only one of two checkbox columns can be checked at any given time for any given row. 

What I'm experiencing is when one column is checked and the other is selected, both are then unchecked including the one clicked.

Sample project illustrating the issue is attached and the event handler code is below.  

What am I doing wrong?  Any help would be most appreciated.

TIA

Event handler code:

        private void Dgv_MenuItems_ValueChanged(object sender, EventArgs e)
        {
            if (_settingItemAvail)
            {
                return;
            }

            if (sender != null && sender is RadCheckBoxEditor checkBoxEditor)
            {
                var cell = checkBoxEditor.EditorElement.Parent as GridDataCellElement;
                var cellName = cell.ColumnInfo.Name;
                var row = cell.RowInfo;

                if (row.Index < 0)
                {
                    return;
                }

                _settingItemAvail = true;

                switch (cellName)
                {
                    case "Unavailable":
                        if (checkBoxEditor.Value.ToString() == "On")
                        {
                            if ((bool)dgv_MenuItems.Rows[row.Index].Cells["Available"].Value)
                            {
                                dgv_MenuItems.Rows[row.Index].Cells["Available"].Value = false;
                            }
                        }
                        break;

                    case "Available":
                        if (checkBoxEditor.Value.ToString() == "On")
                        {
                            if ((bool)dgv_MenuItems.Rows[row.Index].Cells["Unavailable"].Value)
                            {
                                dgv_MenuItems.Rows[row.Index].Cells["Unavailable"].Value = false;
                            }

                        }
                        break;
                }

                _settingItemAvail = false;
            }
        }

Hello, I am having a bit of a weird issue. It seems the mouse down event / context menu only fires when I click the the border line of the control but not the inside of the control. When I click the inside of the control I get the default windows right click menu. Is there a way to fix this? 

 Private Sub txtHomePath_MouseDown(sender As Object, e As MouseEventArgs) Handles txtHomePath.MouseDown
        If e.Button = MouseButtons.Right Then
            Dim c As New RadDropDownMenu
            c.BeginInit()
            c.ThemeName = Me.ThemeName
            Dim item As New RadMenuItem("Delete Folder") With {.Image = My.Resources.folder_delete_fatcow.GetThumbnailImage(16, 16, Nothing, Nothing)}
            AddHandler item.Click, AddressOf DeleteFolder
            c.Items.Add(item)
            c.EndInit()
            c.Show(Control.MousePosition)
      End If

    End Sub

Dear Sir,

Telerik UI

Dear all,

I am having difficulties to fix the column size in a ListView in Detail mode.

My set up code is very simple and as follow :

        private void SetLisViewProduitBase()
        {
            ListViewDetailColumn PBaseColumn;
            rlvProduitBase.ViewType = ListViewType.DetailsView;
            rlvProduitBase.AutoSizeColumnsMode = ListViewAutoSizeColumnsMode.None;
            rlvProduitBase.HeaderHeight = 18;
            rlvProduitBase.Font = new Font(rlvProduitBase.Font, FontStyle.Regular);

            rlvProduitBase.ShowCheckBoxes = true;
            rlvProduitBase.ThreeStateMode = false;

            PBaseColumn = new ListViewDetailColumn("Code");
            PBaseColumn.Width = 40;
            rlvProduitBase.Columns.Add(PBaseColumn);

            PBaseColumn = new ListViewDetailColumn("Forme");
            PBaseColumn.Width = 50;
            rlvProduitBase.Columns.Add(PBaseColumn);

            PBaseColumn = new ListViewDetailColumn("Nom Usuel");
            PBaseColumn.Width = 100;
            rlvProduitBase.Columns.Add(PBaseColumn);

            PBaseColumn = new ListViewDetailColumn("Nom Botanique");
            PBaseColumn.Width = 100;
            rlvProduitBase.Columns.Add(PBaseColumn);

            PBaseColumn = new ListViewDetailColumn("Origine");
            PBaseColumn.Width = 70;
            rlvProduitBase.Columns.Add(PBaseColumn);

            PBaseColumn = new ListViewDetailColumn("Labels");
            PBaseColumn.Width = 70;
            rlvProduitBase.Columns.Add(PBaseColumn);
        }

While empty, the columns width are displaying fine as seen on image 1.

When I connect the Datasource (as in https://docs.telerik.com/devtools/winforms/controls/listview/populating-with-data/data-binding), all columns get the same "default" size.

As you say (in the Adding Columns doc) that using a datasource will require to set the column width within the ColumnCreating event, I have tried this.

When this event is first called after defining the columns as in the previous code, I get a NullReference exception as if the columns are not defined.

If I try to create the columns them within the event and test first for column existence, I will get a column already exist exception (An item with the same key already exist).

What am I doing wrong ?

Many thanks for your answers

Patrick

Hello,

I'd like to translate parts of the date filter in the radgridview - see the pic (numbers 1, 2, 3 are in order of clicks to get to the specific filter settings).

Those red rectangles need to be translated. And the date format should be in a short form (like 11.05.2022).

How to do that? It seems it has to do something with a FilterPopupInitialized event but I don't know what to do there.

Thanks in advance.

Regards,

Tomáš

Hi

Is there a way to create a floating action button like this but in Telerik WinForms ?

Thank you.

I have a RadPageView control in a RadForm. When I show the form, the first RadPageViewPage is scaling regarding DPI as expected. But when I select the second RadPageViewPage it is not scaled. When I move the form to another screen and back, it is scaled as expected. The RadPageViewPAge contains a UserControl with another RadPageView control.

As expected:

Too small:

Hi there

I have a column in my DataTable that is called "checked"

I want to make this a checkbox.

With this code it is not changing it:

                GridViewCheckBoxColumn checkboxcolumn = new GridViewCheckBoxColumn();
                checkboxcolumn.DataType = typeof(int);
                checkboxcolumn.Name = "checked";
                checkboxcolumn.FieldName = "checked";
                checkboxcolumn.HeaderText = "Checked?";
                this.grdIssueAcceptance.MasterTemplate.Columns.Add(checkboxcolumn);

With this it added the type nicely, but it is another field. I do not want to ADD a field. 

                GridViewCheckBoxColumn checkboxcolumn = new GridViewCheckBoxColumn();
                checkboxcolumn.DataType = typeof(int);
                checkboxcolumn.Name = "checked02";
                checkboxcolumn.FieldName = "checked02";
                checkboxcolumn.HeaderText = "Checked?";
                this.grdIssueAcceptance.MasterTemplate.Columns.Add(checkboxcolumn);

Regards

Kobus

Hello Guys,

we are trying to use the Nuget to install the telerik controls instead of local installation, but I found under the winFrom project, it doesn't work, I try to search "Telerik.WinControls.ChartView",  but no expected results return, my telerik Nuget settings is like below:

I don't think the ".Telerik.Windows.ChartView" is what we want.

the only thing for winforms controls is named "TelerikWinCompositeUI", when I installed it,

I found the "Telerik.WinControls.ChartView" doesn't exist.

Hi,

Is it possible to get an example of how to to create a custom TextHighlightTag? To try and recreate what the 'Find All' achieves in the search dialog.

It's the only TaggerBase I'm having trouble getting working. I've literally copied the source code from TextSearchHighlightTagger.cs but no matter what when I try to use UpdateSearchWord it results in an exception 'Object reference not set to an instance of an object.'

If I don't register a custom tagger and just use:

syntaxEditor1.SyntaxEditorElement.HighlightAllMatches("Test");

It does exactly what I want to do, only that I can't seem to set the TextFormatDefinition.

What I'm hoping to achieve is to have a text field that controls what is highlighted. Custom would be ideal as I could have more than one then but for my intended purpose I'd be happy just to be able to configure the default colors.

Thanks in advanced!

Regards