How to only show rows have backcolor is color.red in datagridview C#

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I only show color.red (rows) in Datagridview. I don't know use databindings in this case

notes: I use CellFormatting in Datagridview for BackColor (red)

foreach (DataGridViewRow row in dgvVV1111.Rows)
{
  int X = Convert.ToInt32(row.Cells["TotalAmount"].Value);                    
  if (X == 0)
  {
    row.DefaultCellStyle.BackColor = Color.Red;
  }
}

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What I have tried:

I try to show only rows (color.red) in datagridview

Posted 10-Aug-20 17:47pm

Member 14836421

Updated 10-Aug-20 20:26pm

Garth J Lancaster

v3

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3 solutions

Solution 4

Thanks you for your helps. I have coded successfully...

if (chkRedLine.Checked == true)
            {
                foreach (DataGridViewRow row in dgvVV1111.Rows)
                {
                    int X = Convert.ToInt32(row.Cells["TotalAmount"].Value);
                    if (X == 0)
                    {
                        row.DefaultCellStyle.BackColor = Color.Red;
                    }
                    else
                    {
                        CurrencyManager currencyManager1 = (CurrencyManager)BindingContext[dgvVV1111.DataSource];
                        currencyManager1.SuspendBinding();
                        row.Visible = false;
                        currencyManager1.ResumeBinding();
                    //www.codeproject.com/Questions/657059/Row-associated-with-the-currency-managers-position
                    }                    
                }
            }

Posted 10-Aug-20 20:26pm

Member 14836421

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OriginalGriff · Accepted Answer · 2020-08-10T20:11:00

Solution 3

Is this of any help: Colouring DataGridView Cells According to their Content in WinForms[^]

Posted 10-Aug-20 20:11pm

OriginalGriff

Garth J Lancaster · Accepted Answer · 2020-08-10T18:09:00

iirc a datagridview row has a visible property eg dataGridView.Rows[Index].Visible = [false|true];

so could you do this perhaps ?

foreach (DataGridViewRow row in dgvVV1111.Rows)
{
  int X = Convert.ToInt32(row.Cells["TotalAmount"].Value);                    
  if (X == 0)
  {
    row.DefaultCellStyle.BackColor = Color.Red;
  }
  else
  {
    row.Visible = false;
  }
}

(You might need intellisense to check for the Visible property, this is a dim recollection) .. if it works you could add a button to show all rows by setting all Visible to true

[Edit] I think, depending on what else you need to do, you would be better off with a bindingsource and filter.

Some useful references may be A Detailed Data Binding Tutorial[^], Summary DataGridView[^] and DataGrid with built-in filter functionality[^] [/Edit]