c# 设置datagridview样式

 //设置单元格自动宽
            datagridview.DefaultCellStyle.WrapMode = DataGridViewTriState.True;
            datagridview.DefaultCellStyle.ForeColor = Color.White;
            datagridview.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.ColumnHeader;
            //设置字体大小
            System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle1 = new System.Windows.Forms.DataGridViewCellStyle();
            dataGridViewCellStyle1.Font = new System.Drawing.Font("微软雅黑", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
            datagridview.RowsDefaultCellStyle = dataGridViewCellStyle1;
            datagridview.ColumnHeadersDefaultCellStyle = dataGridViewCellStyle1;
            
            datagridview.AutoGenerateColumns = false;
            //设置列填充满区域
            datagridview.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
            datagridview.AllowUserToResizeColumns = false;
            datagridview.AllowUserToResizeRows = false;

            datagridview.BackImage = Image.FromFile(@"C:\Users\Administrator\Desktop\网格背景.jpg");
            //设置cell背景透明
            datagridview.ColumnHeadersDefaultCellStyle.BackColor = Color.Transparent;
            datagridview.ColumnHeadersDefaultCellStyle.ForeColor = Color.White;
            datagridview.ColumnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;
            //加上这句前面的才起作用
            datagridview.EnableHeadersVisualStyles = false;

            datagridview.DefaultCellStyle.BackColor = Color.Transparent;
            datagridview.DefaultCellStyle.ForeColor = Color.White;
            datagridview.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
            datagridview.RowHeadersVisible = false;
            datagridview.RowsDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;

            datagridview.ReadOnly = true;