I can programmatically set the backcolor of a cell depending on its value but how can I then set the backcolor of an adjacent cell in the same row to the same color?

TIA

Hi Richard,

From my experience, we can only set the color of the cells in a row or a column. This is the code snippet:
    //Set the backcolor of the cells in the first row.

    dataGridView1.Rows[0].DefaultCellStyle.BackColor = Color.Red;

    //Set the backcolor of the cells in the first column.

dataGridView1.Columns[0].DefaultCellStyle.BackColor = Color.Red;

Based on my understanding, you did set the backcolor of one column and want to set the backcolor of one cell to another cell in the same row. You can follow the code snippet below:
    //Set the backcolor of column 2 to the backcolor of column 1.

dataGridView1.Columns[2].DefaultCellStyle.BackColor =   dataGridView1.Columns[1].DefaultCellStyle.BackColor;

We can also handle the CellPainting event to redraw the background of one cell to change the backcolor of only one cell. Did you set the color of one cell in this way?

Regards,
Aland Li

Hi,

We are changing the issue type to “General Discussion” because you have not followed up with the necessary information. If you have more time to look at the issue and provide more information, please feel free to change the issue type back to “Question” by opening the Options list at the top of the post window, and changing the type. If the issue is resolved, we will appreciate it if you can share the solution so that the answer can be found and used by other community members having similar questions.

Aland Li