Question

Somewhat new to .NET 4.0 C# development and have a quick question. I am working on a basic windows form application where I am using a DataGridView to view data stored in an Access Database.

I would like to use ALT+N to select the next row down and ALT+P to select the next row up (wrapping if possible or maybe just not move at all if already at top of row list or bottom).

I have done a fair amount of looking into this via the internet and I am just not seeing how I can accomplish this, and I am not seeing an option via the properties of the control. :-/

Can anyone provide a solution that will work in a .NET 4.0 C# development environment?

Answer 1

I ended up using the below event code for a “Next” and “Previous” button making use of the “Alt+N” and “Alt+P” hot keys. Thanks to “Chuck Wilbur” for his contribution as well to this solution.

private void btnNext_Click(object sender, EventArgs e)
        {
            //Get number of records displayed in the data grid view and subtract one to keep in line with index that starts with 0
            int numOfRows = dataGrdViewCases.Rows.Count - 1;

            //Get current row selected
            int index = dataGrdViewCases.SelectedRows[0].Index;

            // Determine if the next record exists or cycle back to the first record in the set
            if (index < numOfRows)
            {
                //Change the selected row to next row down in the data set
                dataGrdViewCases.CurrentCell = dataGrdViewCases[0, index + 1];
            }
            else
            {
                // Select the first record of the data set
                dataGrdViewCases.CurrentCell = dataGrdViewCases[0, 0];
            }
        }

        private void btnPrevious_Click(object sender, EventArgs e)
        {
            //Get number of records displayed in the data grid view and subtract one to keep in line with index that starts with 0
            int numOfRows = dataGrdViewCases.Rows.Count - 1;

            //Get current row selected
            int index = dataGrdViewCases.SelectedRows[0].Index;

            // Determine if the previous record exists or cycle back to the last record in the set
            if (index != 0)
            {
                //Change the selected row to next row down in the data set
                dataGrdViewCases.CurrentCell = dataGrdViewCases[0, index - 1];
            }
            else
            {
                // Select the first record of the data set
                dataGrdViewCases.CurrentCell = dataGrdViewCases[0, numOfRows];
            }
        }

By using the above event code I am able to cycle through the rows in a circular manner in either direction. Works well for me at least.

Thanks again for the help and taking the time to assist “Chuck Wilbur”!