Questions on UI for WinForms Forum

1 answer

148 views

Radtimepicker step 15 minutes not working properly

So I want the user to choose a time with an interval of 15 mins, I disabled key presses because their is no proper way to handle it to round up to the nearest 15 mins.

Anyways my issue is that I tried using this setup so that the user can easily pick 15 mins interval

      this.ReturnTimePicker.Step = 15;
      this.ReturnTimePicker.TimeTables = Telerik.WinControls.UI.TimeTables.HoursAndMinutesInOneTable;

The result looks like this

So ok, probably a bug or 15 mins is not supported because of how many the choices would be.

So now I decided just to use the 2 tables instead of 1.

  this.ReturnTimePicker.Step = 15;
  this.ReturnTimePicker.TimeTables = Telerik.WinControls.UI.TimeTables.HoursAndMinutesInTwoTables;

The result is

It technically works and it's great but as you can see the Minutes is hidden, I need to drag the popup so it opens up properly.

I don't want my users to do that every time, so I want the control to be already expanded fully

Any fixes or alternatives on this issues?

TimePicker

answered on 09 Sep 2022

1 answer

118 views

It's possible to create RadContextMenuManager programmatically ?

Hi ,

I need to create RadContextMenuManager programmatically in a "base" RadForm ( wich is inherited by other Forms Classes).

I don't want to add it with the designer.

It's possible?

If i add a property RadContextMenuManager, i cannot see this.RadContextMenu .

Alessandro

Form

answered on 09 Sep 2022

1 answer

105 views

I want to add a text box with color to RadMap

Can I add a textbox on the map filled in a color of my choice just like in the attached photo ?

Map

answered on 08 Sep 2022

1 answer

96 views

RadDropDownList gives message in debug output window when I click

Hello community!!!

Every time I click on a RadDropDownList I get this message into my debug output window:

The thread 0x588c has exited with code 0 (0x0).

The 0x588c changes every time.

Any idea why is this happening? Is this a normal behavior of RadDropDownList or something?

Thank you for your time!!!

DropDownList

answered on 08 Sep 2022

1 answer

122 views

Adding Rows to non-bound RadDataGridView performance

I'm populating the RadDataGridView via setting up the columns, then suppling an array of objects for each row I need to add. I can't use a bound grid as we need columns that are not actual values of the object (for example View/Edit buttons that then open the record for the user). I cannot run this in a virtual grid as we are using the grouping functionality to allow users to organize the data. Currently populating the grid takes over half the time of the process. Anyone have additional suggestion for things to try?

 public void AdvancedRowsPopulation(IList<object[]> rows, bool doReset = true)
        {
            var tmr = System.Diagnostics.Stopwatch.StartNew();
            radGridView1.BeginUpdate();
//Have to reset the columns so the object[] matches up again
            string settings = GetGridXml();
            SetGridToXML(BaseGridSettingsXML);
            DetachColumnListeners();
            tmr.Stop();
            Log.Info($"Grid to default took {tmr.ElapsedMilliseconds / 1000.0}s.");

            tmr = System.Diagnostics.Stopwatch.StartNew();
            if (doReset)
            {
                radGridView1.Rows.Clear();
                cachedRows = new List<object[]>();
                lastDataSet = new DataTable();
                foreach (var col in radGridView1.Columns) lastDataSet.Columns.Add(col.HeaderText);
            }
            for (int y=0;y<rows.Count;y++)
            {
                var row =rows[y];
                radGridView1.Rows.Add(row);
                lastDataSet.Rows.Add(row);
            }
            lblDataCount.Text = radGridView1.Rows.Count.ToString();
            tmr.Stop();
            Log.Info($"Grid Row Population took {tmr.ElapsedMilliseconds / 1000.0}s.");

            tmr = System.Diagnostics.Stopwatch.StartNew();
            BaseGridSettingsXML = GetGridXml();
//Set grid back to what the user had last seen
            SetGridToXML(settings);

            radGridView1.EndUpdate();
            tmr.Stop();
            Log.Info($"Grid to user's layout took {tmr.ElapsedMilliseconds / 1000.0}s.");
        }

GridView

answered on 07 Sep 2022

1 answer

119 views

Is there any way resizing settingPane

hello, I want to show a form in settings pane, but the form is much larger, so I need to resize it . But

radDiagram1.DiagramElement.SettingsPane.Size doesn't work. How can I make this work ? Thanks

Diagram, DiagramRibbonBar, DiagramToolBox

answered on 06 Sep 2022

1 answer

101 views

MDI Parent Text

Hello,

i am using the mdi functionality in my winforms app. If i open a childform in maximized state, the text of the childform will appear in the text of the parent mdi form. How can i disable this so that the text of the parent mdi form will always stay the same?

Form

answered on 06 Sep 2022

1 answer

885 views

How to Scroll to top of Radgridview after Sorting

Whenever a sort filter is applied to my radgridview, it holds the selectedItem and scrolls to it further down in the list. How to I programatically scroll to the top or disable this from jumping to the selected item? (Sorting is pre-set in the UI component, not programmatic)

Thanks!

GridView

ScrollBar

answered on 02 Sep 2022

2 answers

589 views

Cell Select/focus color change on RadGridView

Hello Team,
we are using the Radgrid in our application. we need to change the cell select/focus color change on gridview.

Actual required

I need to change the blue color with dark blue border in cell selected highlighter on the grid focus and I need to change the yellow color in grid focus out. we have added the screenshot for your reference. Please help us.

Screenshot : https://prnt.sc/X529hq6pL0Uz

GridView

answered on 02 Sep 2022

1 answer

117 views

[RadGridView] Conditional cell formatting is applied to cells that shouldn't match the formatting criteria

.NET Framework 4.8

Telerik 2022 R1

There are two conditional cell formats: one for the command cell and another for a checkbox.

The formatting for the command cell works without issue. However, for the unavailable column the formatting is applied to other cells and even other columns regardless of the value which is needed.

Only the first two rows, "1 Giant Slice" and "10inch Small", should have the unavailable cells in red. These two rows are consistently formatted correctly, but other rows have both unavailable and available cells formatted in red, too. The rows which have incorrect formatted do not seem to be consistent.

The debugger and logging the values of the data bound item shows that the proper values are there and only.

e.g.

only the two items and for the proper column are processed by the if statement that applies formatting to the unavailable cell (line 134 in form).

2022-09-01 10:26:08.749  [DEBUG]  Item: 1 Giant Slice  -  Next Available: [01/01/2024 12:30:00]  -  Column Name: Unavailable
2022-09-01 10:26:08.761  [DEBUG]  Item: 10inch Small  -  Next Available: [01/01/2024 12:30:00]  -  Column Name: Unavailable

I've attached a sample project with some sample JSON data that is loaded when the Form Load event is handled.

There has to be something I'm doing wrong but I just can't figure out what it is.

Any help would be most appreciated. TIA

Cell formatting event handler:

        private void Dgv_MenuItems_CellFormatting(object sender, CellFormattingEventArgs e)
        {
            if (_isFiltering)
            {
                return;
            }
            
            if (sender is GridCommandCellElement cellElement)
            {
                var row = dgv_MenuItems.Rows[e.RowIndex];
                var boundObj = (MenuItemAvailabilityModel)row.DataBoundItem;

                //This conditional formatting works without issue
                if (boundObj.CustomAvailability.Count > 0)
                {
                    cellElement.CommandButton.Text = "Change";
                    cellElement.CommandButton.ButtonFillElement.BackColor = Color.LightGreen;
                }
                else
                {
                    cellElement.CommandButton.Text = "Add";
                    cellElement.CommandButton.ButtonFillElement.BackColor = default;
                }
            }
            else if (e.Column.Name == nameof(MenuItemAvailabilityModel.Unavailable))
            {
                var row = dgv_MenuItems.Rows[e.RowIndex];
                var boundObj = (MenuItemAvailabilityModel)row.DataBoundItem;

                //This conditional formatting is applied to cells for which no NextAvailable is set in the data
                if (boundObj.NextAvailableAt.HasValue && boundObj.NextAvailableAt.Value > DateTime.Now)
                {
                    e.CellElement.DrawFill = true;
                    e.CellElement.BackColor = Color.Red;
                    e.CellElement.NumberOfColors = 1;
                }
            }
        }

GridView

answered on 02 Sep 2022