DataGridViewRow.DefaultCellStyle Formatting

Question

I have this code attached on RowValidating event of a DataGridView:

private void dgvSrc_RowValidating(object sender, DataGridViewCellCancelEventArgs e)
{
    DataGridView dgv = sender as DataGridView;

    if (dgv.Rows[e.RowIndex].Cells["fullPath"].Value.ToString().Equals("none"))
        dgv.Rows[e.RowIndex].DefaultCellStyle.ForeColor = Color.Red;
    else
        dgv.Rows[e.RowIndex].DefaultCellStyle.ForeColor = Color.Black;
}

This works but not automatically, you need to focus or click first then select another row to see if its ForeColor is changed as red. I tried using Update and Refresh that does not automatically format the specific row. How can I fix this?

you should be subscribing to the `CellFormatting` event of the grid and then set the style — V4Vendetta, Jun 11 '13 at 06:37

score 1 · Answer 1 · answered Jun 11 '13 at 06:42

1

Use the CellFormatting event of the DataGridView

dgv.CellFormatting += dgv_CellFormatting

Handle it like

void dgv_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
    if(dgv.Rows[e.RowIndex].Cells["fullPath"].Value.ToString().Equals("none"))
      dgv.Rows[e.RowIndex].DefaultCellStyle.ForeColor = Color.Red;
    else
      dgv.Rows[e.RowIndex].DefaultCellStyle.ForeColor = Color.Black;
}

answered Jun 11 '13 at 06:42

V4Vendetta

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Found this useful but looping through all the rows after loading the data then using the conditions above seems faster on loading. Thanks anyway – Jon P Jun 11 '13 at 06:53
1

@nathan742 "Thank you anyway" As the question was asked, @ V4Vendetta probably give you the best answer. (I was starting to write the same, he beat me from a few seconds). "Looping through all the rows after loading the data" is a possible solution but it supposes that values the Grid is readonly. In your question you wrote "This works but not automatically,". I don't understand your comment "Man". – Chris Jun 11 '13 at 20:48
1

@Chris i guess what he means by automatically is it sets it only once when the loop is run and not at al times when the value might change – V4Vendetta Jun 12 '13 at 05:28
Yep, @V4Vendetta is right. That's what I did and what I meant. – Jon P Jun 13 '13 at 02:53

score 0 · Answer 2 · answered Jun 11 '13 at 06:20

0

You are subscribing to the wrong event. I think, you need this one: CellValueChanged

answered Jun 11 '13 at 06:20

Nikita B

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matzone · Answer 3 · 2013-06-13T07:08:20.327

0

You may do it in your dgv RowPrePaint event ..

Private void dgvSrc_RowPrePaint(object sender, DataGridViewCellCancelEventArgs e)
{
DataGridView dgv = sender as DataGridView;

if (dgv.Rows[e.RowIndex].Cells["fullPath"].Value.ToString().Equals("none"))
    dgv.Rows[e.RowIndex].DefaultCellStyle.ForeColor = Color.Red;
else
    dgv.Rows[e.RowIndex].DefaultCellStyle.ForeColor = Color.Black;
}

edited Jun 13 '13 at 07:08

answered Jun 12 '13 at 01:06

matzone

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DataGridViewRow.DefaultCellStyle Formatting

3 Answers3