How can I delete a selected row from a datagridview and it update my database?

Question

0.00/5 (No votes)

See more:

, +

I have a application where I need to use the buttons in the datagridview to delete a selected row. I know how to do that part but i need it to also update the database. That's what I'm struggling with.

What I have tried:

So this what I have it does delete the selected row when application is running but once the application is closed and ran again the deleted row is back.

C#

private void RecordsdataGridView_CellContentClick(object sender, DataGridViewCellEventArgs e)

if (RecordsdataGridView.Columns[e.ColumnIndex].Name == "Delete")
{
DialogResult result = MessageBox.Show("Are you sure you want to delete this patient report?", "Conformation", MessageBoxButtons.YesNo);

                if (result == DialogResult.Yes)

                {
                int rowIndex = RecordsdataGridView.CurrentCell.RowIndex;

               RecordsdataGridView.Rows.RemoveAt(rowIndex);
}

         else if (result == DialogResult.No)

                {
                    Application.Exit();
                }
}

Posted 28-Apr-20 12:20pm

Member 14802172

Updated 28-Apr-20 15:30pm

MadMyche

v2

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Garth J Lancaster · Answer 1 · 2020-04-28T15:31:00

One way of doing this, is, before this line

RecordsdataGridView.Rows.RemoveAt(rowIndex);

read the required (index) data from the selected DataGrid Row, and use that to run a 'delete from table where id = index-from-datarow' sort of thing - making sure you do the SQL properly, ie, no SQL injection, use a parameterized SQL statement.

If the DataGrid Row doesn't have an index or something to form a unique delete statement, then I suggest you change your original query to obtain it, but make the DataGrid column hidden so it doesnt display

Probably a better way of achieving the update/delete of an 'underlying' database table from a DataGridView is to 'bind' the DataGridView to the data-source (db table) - here's a link that may help illustrate this Database Updates From DatagridView[^]