How to achieve datagridview row color

kyoetsuu

Fields in the table

status
0
1

How to make rows with status 0 display blue and 1 display red

22151146

If data binding is used, the RowDataBound event of datagridview can be triggered
protected void GridViewTransportPapers_RowDataBound (object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            int i = e.Row.DataItem as int; // This depends on your situation
            if (i == null)
            {
                return;
            }
            if (i == 0)
            {
                e.Row.BackColor = Color.Red;
            }
            else
            {
                e.Row.BackColor = Color.Blue;
            }
        }
    }

ooloife

Rewrite the onpaint function of datagird, and use dataGridTableStyle. Roughly as follows
public class DataGridColoredTextBoxColumn: DataGridTextBoxColumn
{
public DataView dv = null;

protected override void Paint (Graphics g, Rectangle bounds, CurrencyManager source, int rowNum, Brush backBrush, Brush foreBrush, bool alignToRight)
{
try
{
switch (dv [rowNum] .Row [3] .ToString ())
{
case "critical": backBrush = Brushes.Red; break;
case "major": backBrush = Brushes.Red; break;
case "minor": backBrush = Brushes.Orange; break;
case "warning": backBrush = Brushes.Orange; break;
default: break;
}
}
catch (Exception ex)
{
MessageBox.Show (ex.Message);
}
finally
{
base.Paint (g, bounds, source, rowNum, backBrush, foreBrush, alignToRight);
}
}
}
Use this class instead of DataGridTextBoxColumn to define variables: as follows
private DataGridColoredTextBoxColumn IDColumn;
That's it.

22151146

. . . . . . I was wrong, mine was on asp.net. . .
Did not see clearly

kyoetsuu

For WINFORM, the method ofooloifewas not tried out!

22151146

Not done yet?
Trigger the DataBindingComplete event
private void dataGridView1_DataBindingComplete (object sender, DataGridViewBindingCompleteEventArgs e)
{
    // traverse each line
    foreach (DataGridViewRow dgv in dataGridViewOutMacs.Rows)
    {
        // Take the value of a specific column, the column index is INDEX
        int i = dgv.Cells [INDEX] .Value as int;
        if (i == null)
        {
            continue; // The conversion is unsuccessful
        }
        if (i == 0)
        {
            dgv.DefaultCellStyle.BackColor = Color.Blue;
        }
        else if (i == 1)
        {
            dgv.DefaultCellStyle.BackColor = Color.Red;
        }
    }
}

22151146

Not done yet?
Trigger the DataBindingComplete event
private void dataGridView1_DataBindingComplete (object sender, DataGridViewBindingCompleteEventArgs e)
{
    // traverse each line
    foreach (DataGridViewRow dgv in dataGridView1.Rows)
    {
        // Take the value of a specific column, the column index is INDEX
        int i = dgv.Cells [INDEX] .Value as int;
        if (i == null)
        {
            continue; // The conversion is unsuccessful
        }
        if (i == 0)
        {
            dgv.DefaultCellStyle.BackColor = Color.Blue;
        }
        else if (i == 1)
        {
            dgv.DefaultCellStyle.BackColor = Color.Red;
        }
    }
}

kyoetsuu

Why didn't I find the DataBindingComplete event?

22151146

kyoetsuu
 
 
   Why didn't I find the DataBindingComplete event?
  
 
===============================================
It is easy to find in the "Data" events of the DataGridView, or sort the events alphabetically.

vipdark

I really didn't. I didn't find it either! I also asked. How to change the background color of the selected row .. The default blue color of the system is not good!