CODEWITHSUNDEEP
c#validationif-statement
Kpt.Khaos
Kpt.Khaos

Reputation: 693

Wrapping multiple method calls into one if statement

I have a validation method that I call to validate the fields on my form. I want to put these in an if statement check to see if they return true then in my else statement insert them into my database. i already have the method declared and the insert method declared. How can I write this if statement to check to see if all the validation methods return true?

My method validation calls:

formValidation(firstnameTextBox.Text);
formValidation(lastnameTextBox.Text);
formValidation(usernameTextBox.Text);
formValidation(passwordTextBox.Text);
formValidation(emailTextBox.Text);
formValidation(cellnumberTextBox.Text);

Upvotes: 0

Views: 183

Answers (1)

Servy
Servy

Reputation: 203828

Just use the AND operator (&&)

if(formValidation(firstnameTextBox.Text) &&
formValidation(lastnameTextBox.Text) &&
formValidation(usernameTextBox.Text) &&
formValidation(passwordTextBox.Text) &&
formValidation(emailTextBox.Text) &&
formValidation(cellnumberTextBox.Text))
{
}

As mentioned in the comments, if you want all of the methods to be run (to display the relevant errors for each field) no matter what, and to not stop as soon as it hits the first error, you can use a non-short circuiting AND, which is the & operator.

Alternatively, you could put the textboxes into a collection and act on that collection:

var fieldsToValidate = new TextBox[]{firstnameTextBox, lastnameTextBox, ...}
if(fieldsToValidate.All(field => formValidation(field.Text));

Upvotes: 4

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