C#通过Combobox下拉值来改变Textbox的字体的大小

Question

如题所述

Answer 1

先用循环遍历出Combobox中下拉的值在窗口打开时Load事件里就加载for (int i = 8; i <= 78; i += 2)
{
this.comsize.Items.Add(i);
} this.comfont.Text = "Arial";
this.comsize.Text = "12";定义一个方法，然后选择Comebobox时，调用就行了void Update()
{
string fonttype = "Arial";
int size = 12;
if (comfont.SelectedIndex > 0)
{
fonttype = comfont.SelectedItem.ToString(); }
if (comsize.SelectedIndex > 0)
{
size =Convert.ToInt32 (comsize.SelectedItem);
}
Font f = new Font(fonttype,size);
this.richTextBox1.Font = f;
}

Answer 2

这个没有什么的哈，具体是什么困难呢