C# Tutorial - Validation using Error Provider | FoxLearn

Display Error Icons for Form Validation using Error Provider control in C#. The C# Basics beginner course is a free C# Tutorial Series that helps beginning programmers learn the basics of the C# Programming Language.
Website: foxlearn.com
This video shows you how to use ErrorProvider C# Control - Simple Login Validate Example or Simple errorprovider example in windows form visual studio c#
You can also find this video through topics:
C# Validation Form With ErrorProvider
Validation in Windows Form C# using ErrorProvider Control
Validation Form Application in C#
textbox validation in c# windows application
c# - Validating multiple textboxes using errorprovider
C# ErrorProvider Control: Windows Forms
Error Provider Control in Windows Application Form - CodeProject
Using Error Provider Control in Windows Forms and C#
Error Provider in a C# Windows Forms Application
How to use errorprovider control to validate a textbox
c# - Input validation for text boxes in a Form
User Input Validation in Windows Forms - MSDN
Input Validation C# Textbox Controls

[@Blue-Scorpion]

Thanks for this. You have definitely best tutorials.Your videos are short, clear and most importantly solve problem in a best manner!

[@exogendesign4582]

After A while Damn, I just realized that your way of coding is so Clean and Concise, I now Appreciate it. hehehehe sorry for all my bad comments.

[@KouYaku]

definitely helped me with my assignment

[@blankf0cku]

Thanks Simple and exact tutorial!

[@udayabandara824]

It's worked. Thanks a lot...

[@MrAhmedHaider]

It doesn't allow me to close the form if (txtUsername.Text) is empty! How to override this?!

[@aryanbhaskar7872]

I want to use if condition with text string of textbox how to do it plz help me !!!

[@garudakurt5166]

Its not work using multiple textbox! Even if I set the tab orders.

[@xlnwinglx]

muchas gracias, que linda voz... tienes enamoras *-*

[@foxlearn]

You're welcome. Thank you !

[@D_ev]

Thanks😀

[@MuhammadUsamaQamar]

After doing this even if you enter values to textbox 1 it won't let you go down.

[@dakidare99]

Just if somebody needs a solution.. Open errorProvider Properties and open ContainerControls menu. A bunch of properties will open. Find "AutoValidate" and set it to "Disable". :)

[@user-xg7hi5mh3g]

nice wht i searched for a time 😊😍

[@foxlearn]

Thank you !

[@trollplayz6483]

thanks for that :)

[@annoyingmouse799]

errorProvider doesnot exist how to fix it?

[@annoyingmouse799]

please need fast respond

[@ayeitsgr4ce]

How to not let the messagebox at the end show?

[@siddalingeshapatil8973]

If i nsert new button with name "Close" when i click on close button the form not closing it will show Error Providers ??????????????????????????????????????

[@foxlearn]

Hi, Please check valid data, make sure you data is valid

[@kingsleyufot797]

when values inputted in my textbox button dont work........pls how do i full?

[@elkinggomez9463]

same here :c

[@SVT000]

videos great and stuff but g damn, the intro about "fox learn" is driving me crazy at this point

[@arbertguanzon9391]

i tried it but with multiple with multiple textbox then its misbehave even i input on the first textbox i cannot go into the next textbox

[@foxlearn]

You should set tab order for your text box control

[@arbertguanzon9391]

@@foxlearn i set tab orders

[@arbertguanzon9391]

if (ValidateChildren(ValidationConstraints.Enabled)) { MessageBox.Show(txtid.Text, "Message", MessageBoxButtons.OK, MessageBoxIcon.Information); MessageBox.Show(txtfn.Text, "Message", MessageBoxButtons.OK, MessageBoxIcon.Information); MessageBox.Show(txtln.Text, "Message", MessageBoxButtons.OK, MessageBoxIcon.Information); MessageBox.Show(txtmn.Text, "Message", MessageBoxButtons.OK, MessageBoxIcon.Information); MessageBox.Show(cmbc.Text, "Message", MessageBoxButtons.OK, MessageBoxIcon.Information); }

[@agungfirmansyah9196]

Thanks

[@foxlearn]

Thanks

[@danielsefr6509]

@@foxlearn Thanks

[@siddalingeshapatil8973]

i Can't able to close the form .....close form not working

[@foxlearn]

Hi, Please check valid data, make sure you data is valid

[@jsdevelopers3182]

where is object of errorProvider there show only referrence ErrorProvider plz guide me

[@learnthroughanimation6924]

First Declare like this. ErrorProvider errorProvider = new ErrorProvider();

[@imligaya1983]

@@learnthroughanimation6924 thank you for this

[@agungfirmansyah9196]

I will Worked the Material from the Studied, and I want to Make it class Transaction using at Windows Application C #, You know to send to me the Tutorial to make it the Program ?

[@foxlearn]

Hi, Can you describe more details? thank you

[@AdiPrimandaGinting]

Feels like in Feeding frenzy game

[@foxlearn]

Thank you !

[@learncode3483]

👍👍👍❤

[@foxlearn]

Thank you !

[@nathanunderbsd5972]

i tried this code VS 2017, it totally crashed the form, sorry.

[@foxlearn]

What error are you getting?

[@nathanunderbsd5972]

@@foxlearn it is like a bug on error provider itself under vs 2017 - c# (keeps on loop without termination. )

[@nathanunderbsd5972]

@@foxlearn there is no error thrown, just crashed (hang on memory heap with high memory usage).

[@agungfirmansyah9196]

I'm you cant to help me ?

[@foxlearn]

Hi, Can you describe more details? thanks

[@user-lc7ku6je1o]

So, you wrote some code and... explained nothing.