Questions on UI for WinForms Forum

1 answer

245 views

Handle Double click on Gridview Header resize the column as per the content

Hi

I am using RadGridView with sorting enabled. Also Allowing resize columns.

But when I am double clicking on column text in header, it do sorting but also have extra behavior to expand (resize) the column width based on data, which we do not want.

Is there any way we can stop this behavior?

GridView

answered on 23 Nov 2023

1 answer

132 views

[Solved] How to manage radDataFilter filter for datetime

Hi, I'm using a RadDataFilter to filter data on a RaGridView.

For datetime columns I've noticed some problems.

First, in the control the date is displayed in english format (see first attached image). When I try to change the value a datetimepicker appears and in this case the date is in italian format (according to my pc settings).

Second, I've noticed when the radDataFilter.Expression is generated the date is in english format, including time, and it is inside a couple of #, i.e the expression generated is like:

[myDate] >= #11/20/2023 14:55:07#

I would like to have only the date without time, is it possible?
And how can manage this expression to generate the SQL expression, cause the # is not accepted.

Thank you in advance for any help.

DataFilter

DateTimePicker

GridView

answered on 23 Nov 2023

3 answers

259 views

[Solved] How to manage or hide filter "In in list"

Hi, I'm using a RadDataFilter connected to a RaGridView.

For the string column by default is available the "Is in list" filter.

But, if I try to use it, a single textbox is showed and when the filter is applied, and the generated filter expressioin is like "[FieldName] IN 1234" where 1234 is the exaxt text I digited, without quotes.
I think I've not understand how to use this filter, so can anyone suggest to me the correct way to use it?

Alternatively, how can I remove/hide this kind of filter (I do not really need to use this filter)?

Thank you

DataFilter

GridView

answered on 23 Nov 2023

2 answers

169 views

Grid is not resizing to minimum and Drag column here.... text is not wrapping

Hi Team,

When grouping is enabled , the grid size is not resizing to the size of the column and drag column here text is not wrapping, tried to use the minimum size property of radgridview but not able to solve the problem. Kindly suggest in this issue, attached screenshot related to the issue.

Thanks,

Sitaram

GridView

answered on 22 Nov 2023

1 answer

308 views

[Solved] Customising ListViewDataItem

Hello,

I'm currently building a material library tool using Telerik's RadListView. I pretty much got it near exactly what I'm after. However, I'm having some trouble with the last feature, and I'm hoping someone can provide some insight.

What I'd like to do is add an icon to the top left-hand corner of each item that will represent their category.

So far, using the following code and a bit of trickery with HTML markup, my ListView Items currently look like this.

(Written in C++)

    //Create a new ListView Item
    Item = gcnew ListViewDataItem();
    
    //Generate HTML Label
    String^ Label = "<html><strong>" + Name + "</strong><br><span style=\"color:f5f5f5\"><i>" + Latin + "</i></span></html>";
    Item->Text = Label;
    Item->TextAlignment = ContentAlignment::MiddleCenter;
    Item->TextImageRelation = Windows::Forms::TextImageRelation::ImageAboveText;

    //Load the Thumbnail
    String^ thumbnailPath = Path + "\\" + ThumbPath;
    Item->Image = Image::FromFile(thumbnailPath);
    Item->ImageAlignment = ContentAlignment::TopCenter;

However, what I'd like to achieve is this:

I was hoping there was a Background Image property for ListViewDataItem. However, that doesn't seem to be the case. Is there a clever trick to achieve this? Or is my only option to create a Custom ListViewDataItem as described here? https://docs.telerik.com/devtools/winforms/controls/listview/custom-items

Thanks!

ListView

answered on 21 Nov 2023

2 answers

125 views

Static Summary Row not scrollable horizontally

The summary row at top and bottom should not scroll while horizontal scroll.

GridView

answered on 20 Nov 2023

1 answer

300 views

RadGridView Summary row

Hi,

I want to hide grid column but condition is, summary row column should not be hidden.

I want to display summary column but not grid column.

GridView

answered on 17 Nov 2023

1 answer

196 views

Boolean column as image

Hi, I need to show a boolean column in a RadGridView.

I would like to show the column as in the attached image, i.e. with a tick for the true value and nothing for the false value.

I would like to use GridViewCheckBoxColumn but, this column always shows values as checkboxes. In my case, the table is readonly, so the standard checkboxed makes the user to think that he can click to change the check value.

I tried using a GridViewTextBoxColumn and using CellFormatting event:

private void radGrid_CellFormatting(object sender, CellFormattingEventArgs e)
{
      if (this.DesignMode) return;

			if (e.CellElement.ColumnInfo.FieldName == "ScambioPratiche") {
				if ((bool)((System.Data.DataRowView)e.CellElement.RowInfo.DataBoundItem).Row["ScambioPratiche"] == true)
				{
					e.CellElement.Image = MyApp.Main.Properties.Resources.tick;
				}
				else
				{
					e.CellElement.Image = null;
				}
				e.CellElement.Text = string.Empty;
			}
			else
			{
				e.CellElement.ResetValue(LightVisualElement.ImageProperty, ValueResetFlags.Local);
			}

		}

In this way, however, the filter is a text filter and not a checkboxfilter...
Is there a better way to gain my goal, possibly by GridViewCheckBoxColumn ?

GridView

answered on 17 Nov 2023

1 answer

141 views

RadRangeSelector: not properly sorted and not stacked

Hi

I am playing with the RadRangeSelector. I have associated it to an existing chart. The chart is dynamically filled using data from the database.

In the image here below, the top control is a RadRangeSelector, the bottom control is a RadChartView.

Notice that my bottom chart shows series as stacked. How can I get the RadRangeSelector also showing stacked series?

Also notice that the dates are not inlined between top and bottom. How can the RadRangeSelector be sorted by dates (as my chart is showing)?

ChartView

RangeSelector

answered on 15 Nov 2023

1 answer

160 views

[RadChartView] PieTwoLabelColumnsStrategy - DistanceBetweenLabels not working properly

Hi,

I'm using Telerik for Winforms 2023.3.1010 on .NET 7.

While trying to configure the position of my label position using PieTwoLabelColumnsStrategy, only the first label seems to be working with DistanceBetweenLabels property.

 PieTwoLabelColumnsStrategy strategy = new PieTwoLabelColumnsStrategy()
 {
     DistanceBetweenLabels = 50,
     DistanceToLabel = -100
 };

 SmartLabelsController smartLabelsController = new SmartLabelsController
 {
     Strategy = strategy
 };

 radChartView.Controllers.Add(smartLabelsController);
 radChartView.ShowSmartLabels = true;

Here is how I'm filling the chart:

   radChartView.AreaType = ChartAreaType.Pie;
   radChartView.Series.Clear();

   DonutSeries donut = new DonutSeries
   {
       ShowLabels = true,
       LabelMode = PieLabelModes.Horizontal,
       DrawLinesToLabels = true,
       SyncLinesToLabelsColor = true,
       NumberOfColors = categoryCount
   };

   foreach (var v in totals.OrderByDescending(s => s.Statut))
   {
       PieDataPoint point = new PieDataPoint(v.Nombre, v.Statut)
       {
           Label = $"{v.Percentage}% {v.Statut}"
       };

       donut.DataPoints.Add(point);
   }

   radChartView.Series.Add(donut);
   radChartView.Area.View.Palette = KnownPalette.Metro;
   radChartView.SelectionMode = ChartSelectionMode.SingleDataPoint;
   radChartView.BackColor = Color.WhiteSmoke;