From a C# program I have selected a specific SQL database record which I want to display on a Windows form. However, even though I wish to display all the fields in the database record for visual confirmation that I do indeed have the correct record there is only one field I wish to change. So, to prevent accidental updating of all other fields, I wish to protect these fields and only allow the user access to the one field I want updated. Can anyone point me in the right direction?
Thanks.
Depends on how you're displaying these fields. If you're just using normal GUI controls, use Labels to display the read-only fields. You can't edit a label. Or use a TextBox, and set it's ReadOnly property to true.
If you're using a DataGrid, there are ways to set columns to read only. You have to manually add the columns though, not auto-generate them.
6  1771 
Depends on how you're displaying these fields. If you're just using normal GUI controls, use Labels to display the read-only fields. You can't edit a label. Or use a TextBox, and set it's ReadOnly property to true.
If you're using a DataGrid, there are ways to set columns to read only. You have to manually add the columns though, not auto-generate them.
Thanks Curtis, I'll set the ReadOnly property. One other question, how do I close the current form and return to a previous calling form?
Joe
Again, depends. How did you create the new form (Show or ShowDialog)? Did you close the old form when you opened the new one? Hide it? Nothing?
You can call .Close() on a form and it will close.
I did a .Show, and I didn't do anything with the old form. It was only after googling that I realised it might be a good idea to close it. On a button1_Click event I tried form1.Close(); but it gave me an error "An object reference is required for the non-static field, method, or property..." Also, I'm intrigued by the "Hide" method you mentioned... so much new stuff to learn :-) Anyway, once again many thanks, I'm amazed at how many nice people there are in the IT fraternity, gives me hope in humanity. Joe
Well, if you want to hide the form, you would use .Hide.
The problem is, if you're using Show, then your Form1 has no idea when it should show itself. You have to use events. Subscribe to the child form's Closed event, and call "this.Show()" to bring it back.
Thank you, not 100% sure how to do that but now you have pointed me in the right direction it's amazing what one can find out with GOOGLE. :-)
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