Question

如何用C#, 在按了button之后出现checkbox

Answer 1

在form load事件里将checkbox的visible属性设置为false
在button click 事件里将checkbox的visible属性设置为true

Answer 2

前台页面
<asp:Button runat="server" ID="button1" Text="点击我" onclick="button1_Click" />
<asp:CheckBox runat="server" id="ck1" Text="ck1" Visible="false"/>
<asp:CheckBox runat="server" id="ck2" Text="ck2" Visible="false"/>
后台
protected void button1_Click(object sender, EventArgs e)
{
this.ck1.Visible = true;
this.ck2.Visible = true;
}

Answer 3

1开始设置checkBox属性Visible为true
2再点Button进入button1_Click事件
if(this.checkBox1.Visible==false)
{
this.CheckBox1.Visible=true;
}