Questions on UI for WinForms Forum

1 answer

401 views

Enable selection in readonly textbox grid cell

Is there a way to enable selection in a readonly textbox grid cell? So a user cannot edit the text but can select part of the text?

GridView

answered on 14 Nov 2016

4 answers

1.2K+ views

Change Color Border For DateTimePicker ?

Hello
i want Change Change Color Border For DateTimePicker

i want put change color border buttom only and disable color for top,left , right

Calendar, DateTimePicker, TimePicker and Clock

answered on 11 Nov 2016

1 answer

301 views

RadGridView AutogenerateColumns. How much can I do with attributes alone?

I would love to avoid having to create columns by hand, and just rely on auto generation. I know I can set a title of the column by adding a DisplayName attribute. However, when I try to set a date format, it's breaking.

Here's what I am trying to do

[DisplayName("Invoice Date")]

[DisplayFormat(DataFormatString = "{0:MM/dd/yyyy}")]

public DateTime? InvoiceDate { get; set; }

However, the date still displays with the time.

Also, is there a way to get a column to be hidden through attributes alone?

GridView

answered on 11 Nov 2016

31 answers

1.5K+ views

Dynamically adding controls in the columns in the grid

Hi,
I am currently trying to create controls inside a column of the grid view dynamically. My requirement is like i want to create textbox or combo box and bind it into the column depending on the condition. Is it possible to have textbox and combobox in the same column?

Can you please enlighten us with some sample code?

Thanks in advance,
Veda

GridView

answered on 10 Nov 2016

3 answers

370 views

move to next control

how can move between controls by using enter

if ((e.KeyCode == Keys.Enter) )

{

this.SelectNextControl((Control)sender, true, true, true, true);

}

is not working

General Discussions

answered on 10 Nov 2016

2 answers

1.5K+ views

GridViewDateTimeColumn: Need Date without Time

I have a GridViewDateTimeColumn that I am trying to format to show only the date in the format: "MM/dd/yyyy", but instead I get the time in the form of all zeros following the date. (see screen shot).

Property Settings:

Format: Custom

FormatInfo: en-IN

CustomFormat: MM/dd/yyyy

EditorType: DateTimePicker

FilteringMode: Date

Is it possible to get rid of the time and just display the date? If so, how?

GridView

answered on 09 Nov 2016

4 answers

943 views

Can I change the color of the tab on RadPageView?

I want to be able to distinguish between different tabs using color. How can I change the tabs to look something like this?

PageView

answered on 09 Nov 2016

1 answer

138 views

HTML5

Hi,

As you probably know, Telegram has introduced its Gaming Platform recently which supports HTML5.
I developed a WinForms application with the help of your UI for WinForms product (e.g., GridView and ...). I know that you have a product called Kendo UI which supports HTML5, too. My question is that, is it possible to build an HTML5 page using Kendo UI and then render it into Telegram? If so, how?

Actually, since Telegram supports HTML5 from now on and since your Kendo UI supports HTML5, so I want to make some HTML5 pages (Specially GridView) and load them into Telegram and users can interact with my WinForms application using their Telegram app.

I you have any idea about this, please help.

Thanks in advance.

GridView

answered on 09 Nov 2016

3 answers

170 views

Unhandled ArgumentException when clearing content of DropDownList

Hi,

I am having troubles with the DropDownList. I have bound the "SelectedValue"-property of the DropDownList to an int:

myDropDownList.DataBindings.Add("SelectedValue", this, "myID", false, DataSourceUpdateMode.OnPropertyChanged);

When typing something in the DropDownList everything is OK. But I a remove the typed Text I get a very strange exception:

System.ArgumentException was unhandled

Message=Object of type 'System.DBNull' cannot be converted to type 'System.Int32'.

Source=System

StackTrace:

at System.ComponentModel.ReflectPropertyDescriptor.SetValue(Object component, Object value)

at System.Windows.Forms.BindToObject.SetValue(Object value)

at System.Windows.Forms.Binding.PullData(Boolean reformat, Boolean force)

at System.Windows.Forms.Binding.Target_PropertyChanged(Object sender, EventArgs e)

at Telerik.WinControls.UI.RadDropDownList.OnSelectedValueChanged(Object sender, Int32 newIndex, Object oldValue, Object newValue)

at Telerik.WinControls.UI.RadDropDownList.element_SelectedValueChanged(Object sender, ValueChangedEventArgs e)

at Telerik.WinControls.UI.RadDropDownListElement.OnSelectedValueChanged(Object sender, ValueChangedEventArgs e)

at Telerik.WinControls.UI.RadDropDownListElement.NotifyOwner(PopupEditorNotificationData notificationData)

at Telerik.WinControls.UI.PopupEditorElement.listElement_SelectedValueChanged(Object sender, EventArgs e)

at Telerik.WinControls.UI.RadListElement.OnSelectedValueChanged(Int32 newIndex)

at Telerik.WinControls.UI.RadListElement.OnSelectedIndexChanged(Int32 newIndex)

at Telerik.WinControls.UI.RadListElement.SetSelectedIndex(Int32 value)

at Telerik.WinControls.UI.RadDropDownListElement.set_SelectedIndex(Int32 value)

at Telerik.WinControls.UI.RadDropDownListElement.OnTextChanged(RadDropDownListEditableAreaElement sender, EventArgs args)

at Telerik.WinControls.UI.RadDropDownListElement.NotifyOwner(PopupEditorNotificationData notificationData)

at Telerik.WinControls.UI.RadDropDownListEditableAreaElement.textBox_TextChanged(Object sender, EventArgs e)

at Telerik.WinControls.RadItem.OnTextChanged(EventArgs e)

at Telerik.WinControls.RadItem.OnPropertyChanged(RadPropertyChangedEventArgs e)

at Telerik.WinControls.RadObject.RaisePropertyNotifications(RadPropertyValue propVal, Object oldValue, Object newValue, ValueSource oldSource)

at Telerik.WinControls.RadObject.SetValueCore(RadPropertyValue propVal, Object propModifier, Object newValue, ValueSource source)

at Telerik.WinControls.RadElement.SetValueCore(RadPropertyValue propVal, Object propModifier, Object newValue, ValueSource source)

at Telerik.WinControls.RadObject.OnTwoWayBoundPropertyChanged(PropertyBinding binding, Object newValue)

at Telerik.WinControls.PropertyBinding.UpdateSourceProperty(Object newValue)

at Telerik.WinControls.RadPropertyValue.SetLocalValue(Object value)

at Telerik.WinControls.RadObject.SetValueCore(RadPropertyValue propVal, Object propModifier, Object newValue, ValueSource source)

at Telerik.WinControls.RadElement.SetValueCore(RadPropertyValue propVal, Object propModifier, Object newValue, ValueSource source)

at Telerik.WinControls.UI.RadTextBoxItem.TextBoxControl_TextChanged(Object sender, EventArgs e)

Can anybody help?

DropDownList

answered on 09 Nov 2016

5 answers

189 views

DateTimeCategorical Axis an automatic mode for MajorTickInterval ?

Hello,

I have a chart which display will should display timeserie data which could vary from a few point to hunderds. And of course the chart could be resized. In some this end up in an unreadable chart with too much tick label (or not enough).

It will be great if the chartview control could be able to update automatically the MajorTickInterval to prevent this. Just like the chart in Excel !

I attach two screenshot (one of the ChartView, one of Excel) to illustrate.

ChartView

answered on 08 Nov 2016