更改颜色时出错

Question

我有以下代码来更改颜色并存储到数据库中...出于某种原因，它只允许从 colorDialog 更改一种颜色...

if (colorDialog1.ShowDialog() == DialogResult.OK)
{                
    ColorDialog col = new ColorDialog();
    //col.ShowDialog();
    string color = col.Color.ToArgb().ToString("x");
    color = color.Substring(2, 6);
    color = "#" + color;
    con.Open();
    string sql2 = ("Update Employee SET PanelColor= '" + color + "' WHERE EID='" + 17002 + "' ");
    SqlCommand cmd2 = new SqlCommand(sql2, con);
    SqlDataReader dr2 = cmd2.ExecuteReader();
    con.Close();
    MessageBox.Show(color);
    panel1.BackColor = ColorTranslator.FromHtml(color);
}

Step 1 green color was selected

Step 2 Messagebox showing the color codes(for testing purpose)(wrong color code)

Step 3 it uploads the wrong color into the panel...

我不确定这有什么问题...请多多指教谢谢

Answer 1

if (colorDialog1.ShowDialog() == DialogResult.OK)
{                

    string color = colorDialog1.Color.ToArgb().ToString("x");
    color = color.Substring(2, 6);
    color = "#" + color;
    con.Open();
    string sql2 = ("Update Employee SET PanelColor= '" + color + "' WHERE EID='" + 17002 + "' ");
    SqlCommand cmd2 = new SqlCommand(sql2, con);
    SqlDataReader dr2 = cmd2.ExecuteReader();
    con.Close();
    MessageBox.Show(color);
    panel1.BackColor = ColorTranslator.FromHtml(color);
}

更改颜色时出错

Error with changing color

c#

winforms

colors

colordialog