C# DataGridView标题栏颜色设置无效

设置DataGridView.ColumnHeaderDefaultCellStyle的BackColor属性会发现没有效果。这是因为在启动了可视样式的时候，BackColor和ForeColor的值会被忽略。

要解决很简单：datagridview1.EnableHeadersVisualStyles = false;

获取或设置一个值，该值指示在对应用程序启用了可视样式的情况下，行标题和列标题是否使用用户当前主题的可视样式。

//dataGridView.AutoResizeColumnHeadersHeight();
            //dataGridView.AutoResizeRowHeadersWidth(DataGridViewRowHeadersWidthSizeMode.AutoSizeToDisplayedHeaders);
            //dataGridView.RowHeadersWidthSizeMode = DataGridViewRowHeadersWidthSizeMode.AutoSizeToAllHeaders;
            //dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
            //dataGridView.ReadOnly = true;
            //dataGridView.AllowUserToAddRows = false;
            //dataGridView.BackgroundColor = Color.White;

            //属性
            dataGridView.EnableHeadersVisualStyles = false;

            dataGridView.AllowUserToAddRows = false;//禁止用户添加行

            //dataGridView.AllowUserToResizeColumns = false;//禁止用户调整列大小

            dataGridView.AllowUserToResizeRows = false;//禁止用户调整行大小

            dataGridView.SelectionMode = System.Windows.Forms.DataGridViewSelectionMode.FullRowSelect;//如何选择单元格

            dataGridView.RowHeadersVisible = false;  //是否显示行头

            //dataGridView.ColumnHeadersVisible = false; //是否显示列头

            dataGridView.AutoGenerateColumns = false; //是否自动创建列

            //dataGridView.MultiSelect = false;  //是否可以选择多行
            //样式

            dataGridView.ColumnHeadersBorderStyle = System.Windows.Forms.DataGridViewHeaderBorderStyle.Sunken;//列头边框样式
            dataGridView.RowHeadersBorderStyle = System.Windows.Forms.DataGridViewHeaderBorderStyle.Sunken;//行头边框样式

            DataGridViewCellStyle dataGridViewCellStyle1 = dataGridView.AlternatingRowsDefaultCellStyle; //奇数行单元格样式
            //DataGridViewCellStyle dataGridViewCellStyle3 = dataGridView.RowsDefaultCellStyle; //行单元格默认样式
            DataGridViewCellStyle dataGridViewCellStyle3  = dataGridView.RowHeadersDefaultCellStyle; //行头单元格样式
            DataGridViewCellStyle dataGridViewCellStyle2 = dataGridView.ColumnHeadersDefaultCellStyle;  //列头单元格样式

            //奇数行单元格样式设置
            dataGridViewCellStyle1.BackColor = System.Drawing.Color.LightYellow;

            ////行头单元格样式设置
            //dataGridViewCellStyle3.Alignment = System.Windows.Forms.DataGridViewContentAlignment.MiddleLeft;//内容位置
            //dataGridViewCellStyle3.BackColor = System.Drawing.Color.DarkRed;//背景
            //dataGridViewCellStyle3.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));//字体
            //dataGridViewCellStyle3.ForeColor = System.Drawing.Color.White;//字体颜色
            //dataGridViewCellStyle3.SelectionBackColor = System.Drawing.SystemColors.Highlight;//选择时背景
            //dataGridViewCellStyle3.SelectionForeColor = System.Drawing.SystemColors.HighlightText;//选择时字体颜色
            //dataGridViewCellStyle3.WrapMode = System.Windows.Forms.DataGridViewTriState.True;//单元格内容太长时显示格式

            //列头单元格样式设置
            dataGridViewCellStyle2.Alignment = System.Windows.Forms.DataGridViewContentAlignment.MiddleCenter;
            dataGridViewCellStyle2.BackColor = System.Drawing.Color.DarkRed;
            dataGridViewCellStyle2.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
            dataGridViewCellStyle2.ForeColor = System.Drawing.Color.White;
            dataGridViewCellStyle2.SelectionBackColor = System.Drawing.SystemColors.Highlight;
            dataGridViewCellStyle2.SelectionForeColor = System.Drawing.SystemColors.HighlightText;
            dataGridViewCellStyle2.WrapMode = System.Windows.Forms.DataGridViewTriState.True;

            for (int i = 0; i < dataGridView.ColumnCount; i++)
            {
                dataGridView.Columns[i].Width = (dataGridView.Width /*- dataGridView.RowHeadersWidth*/ - 15) / dataGridView.ColumnCount;
            }