c++/cli dataGridView cells

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Hi, guys. Sorry to bother you, but I need a little help.
I have a very simple dataGridView control (4 columns, 3 of them read-only).
I need:
1) to keep users from entering characters other than 0 and natural numbers (1 to 20) on column 3. Currently, it's formatted as numeric, zero decimals, but accepts anything, including spaces.
2) to have row 0, column 3 as the selected cell when the DGV first opens, so the user can start entering information right away. So far,

SQL

this->dataGridView1->ClearSelection();
         this->dataGridView1->Rows[0]->Cells[3]->Selected = true;

are not working.
I'd appreciate your help. Thank you very much!

Posted 8-Sep-12 0:19am

Mateo Hernández

Updated 10-Sep-12 5:43am

v3

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Sergey Alexandrovich Kryukov 10-Sep-12 15:49pm

System.Windows.Forms? Something else? Tag it.
--SA

Mateo Hernández 11-Sep-12 2:56am

PROBLEM SOLVED. Thanks for your reply.
It was a lot easier than I thought, and I learned a few things along the way.

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Mateo Hernández · Accepted Answer · 2012-09-10T21:08:00

Since only a few keystrokes were harmful to the cell value, I added a

C++

CellValueChanged

event. Then filtered out the read-only columns and made a string-to-integer conversion. After that, I included a try/catch block to take care of the

C++

FormatException^

and filtered out both the numbers outside the desired range (0 to 20) and the values that included the plus sign. Not rocket science, but it got the job done!