ASP.NET 控件不会在页面刷新时动态添加到面板

Question

In asp.net project, I am trying to add controls to the panel in C# on a button click event

When I put a debugger breakpoint then I can see the item being added but when the page is shown on the browser, the panel is emptyu.

I've tried adding.Page.PostBack but still no luck.

Am I missing something?

protected void Test(object sender, DirectEventArgs e) {

 Panel configurationPanel = new Panel(); configurationPanel.Title = "My Added Panel"; configurationPanel.Height = 100; pnlInfo.Items.Add(configurationPanel); }

Hits the break point and pnlInfo.Items.Count = 1 but it does not show on the page.

Answer 1

did u try

  pnlInfo.Controls.Add(configurationPanel);