如何在后面的c#中以编程方式创建一个asp:button（没有点击处理）
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How to create an asp:button programmatically in c# behind (without click handling)
提问by dudledok
The following button provides the exact functionality I require, but it must be done programmatically as I will be making more than one based on some variables, but the latter I can figure out if I can just create the button below as a starter:
以下按钮提供了我需要的确切功能，但必须以编程方式完成，因为我将根据某些变量制作多个，但后者我可以弄清楚我是否可以创建下面的按钮作为启动器：
<asp:Button runat="server" OnCommand="Load_Items" CommandArgument="1" text="Submit" />
More information on what I've been doing here.
有关我在这里所做的工作的更多信息。
Edit:
编辑：
I have looked at questions like this, but don't see where to go from Button btnSave = new Button();to seeing a button on the page. Also, most questions I've found seem to go about using C# to handle clicking, but I want to have an OnCommand property to handle it.
我已经看过的问题是这样的，但看不出从哪里去Button btnSave = new Button();看到页面上的按钮。此外，我发现的大多数问题似乎都与使用 C# 处理点击有关，但我希望有一个 OnCommand 属性来处理它。
If I do the following and search using the developer tools for "btn", I get no results.
如果我执行以下操作并使用开发人员工具搜索“btn”，则不会得到任何结果。
Button btnSave = new Button();
btnSave.ID = "btnSave";
btnSave.Text = "Save";
btnSave.CssClass = "btn";
采纳答案by Win
Here is how you create a Button with Command event.
以下是如何使用命令事件创建按钮。
Once it is created, you need to find a way of displaying it. The following example uses PlaceHolder; you can also substitute with Panelif you want.
创建后，您需要找到一种显示方式。以下示例使用 PlaceHolder; Panel如果你愿意，你也可以替换。
ASPX
ASPX
<asp:PlaceHolder runat="server" ID="PlaceHolder1"></asp:PlaceHolder>
Code Behind
背后的代码
protected void Page_Load(object sender, EventArgs e)
{
for (int i = 0; i < 5; i++)
{
var button = new Button
{
ID = "Button" + i,
CommandArgument = i.ToString(),
Text = "Submit" + i
};
button.Command += Load_Items;
PlaceHolder1.Controls.Add(button);
}
}
private void Load_Items(object sender, CommandEventArgs e)
{
int id = Convert.ToInt32(e.CommandArgument);
// Do something with id
}
回答by Kai Hartmann
You need a container control on your page. Try an asp panel for example. Then in your codebehind you do panel.controls.add(btnSave); And don't forget to do it on every site load. http://support.microsoft.com/kb/317515/en-us
您的页面上需要一个容器控件。例如，尝试使用 asp 面板。然后在你的代码隐藏中你做 panel.controls.add(btnSave); 并且不要忘记在每个站点加载时都这样做。http://support.microsoft.com/kb/317515/en-us
