.net中获取系统字体,颜色

.net中获取系统字体,颜色

   if (!Page.IsPostBack)
          {
              //获取系统的所有字体名称(方法一)
              //for (int i = 0; i <= System.Drawing.FontFamily.Families.Length - 1; i++)
              //{
              //      DropDownList1.Items.Add(System.Drawing.FontFamily.Families[i].Name);
              //}

              //获取系统的所有字体名称,也可以使用foreach(方法二)

              System.Drawing.Text.InstalledFontCollection font;//安装在系统的所有字体，无法继承
              font = new System.Drawing.Text.InstalledFontCollection();
              foreach (System.Drawing.FontFamily family in font.Families)
              {
                  DropDownList1.Items.Add(family.Name);
              }

              //获取系统所有颜色(利用枚举获取系统的颜色并且将Dropdownlist的字体颜色改成当前的颜色)
              string[] colorArray = Enum.GetNames(typeof(System.Drawing.KnownColor));
              foreach (string color in colorArray)
              {
                  ListItem item = new ListItem(color);
                  item.Attributes.Add("style", "color:" + color);
                  DropDownList2.Style.Add("BackColor", color);
                  DropDownList2.Items.Add(item);

              }
              //系统字体大小
              string[] sizeArray = Enum.GetNames(typeof(System.Web.UI.WebControls.FontSize));
              RadioButtonList1.DataSource = sizeArray;
              RadioButtonList1.SelectedIndex = -1;
              RadioButtonList1.DataBind();
          }

如何动态修改成上面获取的系统的这些信息呢

颜色：xxx..ForeColor =System.Drawing.Color.FromName(DropDownList2.SelectedItem.Text);

字体名称：xxx..Font.Name = DropDownList1.SelectedItem.Text;

字体大小：

if (listsize.SelectedIndex>0)
{
              xxx.Font.Size = FontUnit.Parse(DropDownList3.SelectedItem.Text);
}
       else
{
             xxx.Font.Size = FontUnit.Point(Int32.Parse(size.Text));//size是文本框的ID可以设置字体的大小
}