C validating tutorial
As I mentioned before, information is passed to the validation function in the event object, and in the code we see that the member ‘value’ is used to communicate the current value of the field.
The member ‘rc’ (or return code) is used to communicate back if the validation was successful or not.
There are other ways to highlight the field in question besides changing the text color, the border color or the fill color could be changed instead, or in addition, just make sure that you are not making the form impossible to read.
To learn more about the event object, take a look at JS.88.560– make sure to click on the button in the upper left corner to display the navigation pane if it’s not shown automatically.
First step to be able to use Lin Q on our SQL database, we will need to define a way, by which .
NET can recognize the database as Classes/Objects, so we will need to map the database tables/stored procedures to Lin Q to SQL classes.
tutorial overview, then how to get started very quickly with its usage on our C#.
After the “Edit” button is clicked, a new window will open that allows us to edit the new script: This script also includes a check for an empty string, so that the user can wipe out a wrong string and start from scratch.
Next, whenever we write something like “from u in my DB.