Question

I tried to change the backcolor in a specific column when the cell value changed. I didn t find the method to do that and I don t know how to do that.

ok ----> backcolor in green.
nok ----> backcolor in red.

非常感谢您的帮助。

private void timer2_Tick(object sender, EventArgs e)
{
    int count = 0;
    foreach (DataRow dr in ds.Tables[0].Rows)
    {
        String StartCourse = dr[0].ToString();
        string EndCourse = dr[1].ToString();
        DateTime SystemTime = Convert.ToDateTime(DateTime.Now);
        DateTime StartTime = Convert.ToDateTime(StartCourse);
        DateTime EndTime = Convert.ToDateTime(EndCourse);

        if (StartTime.TimeOfDay.Ticks <= SystemTime.TimeOfDay.Ticks && SystemTime.TimeOfDay.Ticks < EndTime.TimeOfDay.Ticks)
            {
                 ds.Tables[0].Rows[count][5] = "ok";      
            }

        else
            {
                ds.Tables[0].Rows[count][5] = "nok";
            }

        count++;
        dataGridView1.DataSource = ds.Tables[0];

    }
}

Answer 1

您可以称之为这一程序:

<>蓬贝>

void ColorGrid()
{
     foreach (DataGridViewRow row in dataGridView1.Rows) 
     {
        if (row.Cells[5].Value.ToString() == "ok") 
        {
            row.DefaultCellStyle.BackColor = Color.Green; 
        }
        else
        {
            row.DefaultCellStyle.BackColor = Color.Red; 
        }
     }
}

Answer 2

见。 DataGridViewColumn.DefaultCellStyle property. 这使你能够制定<代码>。页: 1 这个类别有Back Collor 。

详见以下MSDN条款:

http://msdn.microsoft.com/en-us/library/1yef90x0.aspx” rel=“nofollow”> Windows Forms DataGridView Control中的单元式

Answer 3

为此:

 foreach (DataGridViewRow row in this.DataGridView1.Rows)
        {
            if (row.Cells[5].Text == "ok")
            {
                row.DefaultCellStyle.BackColor = Color.Green;
            }
            else
            {
                row.DefaultCellStyle.BackColor = Color.Red;
            }
        }

关于

Answer 4

我在我自己的项目中这样做。

 foreach (DataGridViewRow row in this.dataGridView1.Rows)
 {

     row.DefaultCellStyle.BackColor = (row.Cells[5].Text == "ok")? Color.Green:Color.Red;
 }

If that still didn t work, try delete that datagridview and add it again. Be sure to name it again as dataGridView1 and attached its corresponding events.

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