有用户反馈,看过Insus.NET实现文章标题被变更后如何进行同步之后,对于用户点击按钮,如何能动态添加用户控件,希望能得到更详细一些讲解与说明。有一点需要注意的地方,就是这个用户控件,需要放在网页指定的位置上,因为使用了一个PlaceHolder来装载。
xxx.aspx:
转载地址:
<
asp:TextBox
ID
="txtUrl"
runat
="server"
></
asp:TextBox
>
< asp:Button ID ="CopyArticle" runat ="server" Text ="转载" OnClick ="CopyArticle_Click" />< br />
< asp:PlaceHolder ID ="PlaceHolder1" runat ="server" ></ asp:PlaceHolder >
< asp:Button ID ="CopyArticle" runat ="server" Text ="转载" OnClick ="CopyArticle_Click" />< br />
< asp:PlaceHolder ID ="PlaceHolder1" runat ="server" ></ asp:PlaceHolder >
xxx.aspx.cs 按钮事件:
protected
void
CopyArticle_Click(
object
sender, EventArgs e)
{
CopiedArticle ca = (CopiedArticle) this .LoadControl( " ~/CopiedArticle.ascx " );
ca.Url = this .txtUrl.Text.Trim();
this .PlaceHolder1.Controls.Add(ca);
}
{
CopiedArticle ca = (CopiedArticle) this .LoadControl( " ~/CopiedArticle.ascx " );
ca.Url = this .txtUrl.Text.Trim();
this .PlaceHolder1.Controls.Add(ca);
}
执行结果: