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Home>IT Tests>Questions>C# Winforms

21 interview questions on C# Winformsfor developers (2024)

Test your technical skills before an interview of C# Winforms with 21 corrected questions. Beginner, Intermediate or Expert level.

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21 questions
Medium
1 vote215 runs0 comment

What is the default value of the SelectionMode property of a ListView in C#?

Back-end developer
c#
enum
Guillaume Broutat Nov 24, 2021
Hard
0 vote226 runs0 comment

What are triggers in C#?

Back-end developer
c#
triggers
Guillaume Broutat Nov 24, 2021
Medium
0 vote219 runs0 comment

Write a C# program that prints the following output: Tree

Back-end developer
tree
c#
Guillaume Broutat Nov 24, 2021
Medium
0 vote218 runs0 comment

What is the default culture in C#?

Back-end developer
culture
Guillaume Broutat Nov 24, 2021
Medium
0 vote216 runs0 comment

How to implement drag and drop in a WPF ListView.

Back-end developer
drag and drop
event
Guillaume Broutat Nov 24, 2021
Medium
0 vote215 runs0 comment

How to make a dialog box full screen in C#

Back-end developer
c#
dialog
showdialog
Guillaume Broutat Nov 28, 2021
Medium
0 vote214 runs0 comment

How to check if a variable is undefined in C#

Back-end developer
c#
null
Guillaume Broutat Nov 24, 2021
Medium
0 vote213 runs0 comment

Create a new frmSecondary object and show it.

Back-end developer
dialog
form
Guillaume Broutat Nov 24, 2021
Medium
0 vote212 runs0 comment

Create an MSI file that targets 64-bit platforms and an MSI file that targets 32-bit platforms.

Back-end developer
msi
c#
Guillaume Broutat Nov 24, 2021
Hard
0 vote210 runs0 comment

How to bind a ComboBox to a DataTable in C#

Back-end developer
c#
databinding
Guillaume Broutat Nov 30, 2021
Medium
0 vote210 runs0 comment

How to read an XML file in C#

Back-end developer
xml
reader
Guillaume Broutat Nov 24, 2021
Expert
0 vote210 runs0 comment

Add a ToolStripControlHost to a ContextMenuStrip in C#

Back-end developer
c#
control
Guillaume Broutat Nov 24, 2021
Medium
0 vote210 runs0 comment

What is the type of the keycode of a key pressed in C#?

Back-end developer
c#
keyboard
Guillaume Broutat Nov 24, 2021
Medium
0 vote209 runs0 comment

How to set the splitter distance and the fixed panel of a split container in C#

Back-end developer
c#
spcframe
Guillaume Broutat Nov 11, 2021
Hard
0 vote208 runs0 comment

What is the name of the technology that allows you to deploy a C# application to a user's computer without the user having to install it?

Back-end developer
clickonce
Guillaume Broutat Mar 7, 2023
Easy
0 vote208 runs0 comment

How to make a variable of type 'Sizable' in C#

Back-end developer
c#
null
Guillaume Broutat Nov 24, 2021
Medium
0 vote208 runs0 comment

How to add a new item to a List in C#

Back-end developer
collections
c#
Guillaume Broutat Nov 24, 2021
Expert
0 vote206 runs0 comment

How to get the selected item in a ListBox in C#

Back-end developer
c#
listbox
Guillaume Broutat Apr 11, 2023
Medium
0 vote206 runs0 comment

How to open a child form in a parent form in C#

Back-end developer
c#
mdi
Guillaume Broutat Nov 24, 2021
Medium
0 vote203 runs0 comment

Create a custom control in C#

Back-end developer
c#
usercontrol
Guillaume Broutat Nov 24, 2021