validating_开发者

In Winforms, why is validation not being fired after leaving TextBox and entering a DataGridView?

I\'m overriding the OnValidating event in a custom Winforms text box.I\'m finding that if the text box (which is bound to an object) has focus and then I give a grid focus using the mouse, the OnValid[详细]

2023-04-13 06:10 分类：问答

Referencing multiple IDs in an XML schema (XSD)

I was wondering whether it\'s possible to differentiate between ID fields in an XML schema. I\'m having the following schema:[详细]

2023-03-31 18:46 分类：问答

Python validating web forms data

I am able to extract the form field data, but I am NOT able to Put a check / validate the information to see if The field is not empty.[详细]

2023-03-30 23:49 分类：问答

How to show custom error message in ValidationSummary directly (without validator)?

Can I set custom message to the ValidationSummary control? I\'ve got Delete button in the edit page. I want if the validation fai开发者_如何学编程l to set the error message in the validation summery[详细]

2023-03-25 02:37 分类：问答

How do I display error text via Javascript?

I\'m validating forms with Java开发者_StackOverflow社区script, and I found out how to switch borders/backgrounds of input fields if there is an error, but I want to display text next to the box.How wo[详细]

2023-02-14 00:27 分类：问答

DataGridView Validation & Changing Cell Value

I would like to manipulate a cell in my DataGridView when it is validating so that if the user enters a value that is not valid for the database, but is easily converted to valid data, the program wil[详细]

2023-02-05 21:18 分类：问答

How can i check for character , number and special characters in a string?

I want to user to enter only numbers and characters in textbox i.e no special charaters. I don\'t want to use key press event of textbox.[详细]

2023-02-05 19:30 分类：问答

Checking numbers input with Regex - C#

I\'ve always been using Regex to check for user\'s input validity, ie checking for a correct mail adress, serial number, etc...[详细]

2023-01-25 18:15 分类：问答

Validate decimal max/min values in a NSTextField

First of all i have to do this without IB and without advanced Objective-C techniques like KVO. My problem comes from the simple fact that i can\'t find a way to get the whole new string value of th[详细]

2023-01-14 17:27 分类：问答

How to validate a DataGridView Cell is not empty, when the user never enters the cell?

I just want to check and make sure that a cell has some data in it.My situation is I have 3 columns in a DataGridView.When someone adds a new record the rows are blank.The first column is a ComboBox,[详细]

2023-01-03 16:26 分类：问答