如何创建按钮单击事件（升C ASP.NET）动态按钮？ [英] How can i create dynamic buttons on button click event (C sharp ASP.NET)?

问题描述

我要创建按钮单击事件动态按钮（例如，btnCreateDynamic_Click）。 我试图创建的Page_Load事件和pre_int event.They动态按钮都在工作，但我想在按钮单击事件创建。我怎样才能做到这一点在C＃asp.net？

I want to create dynamic buttons on button click event(for example., btnCreateDynamic_Click). I tried creating dynamic buttons on page_load event and Pre_int event.They are all working but i want to create them in button click event. How can i do this in c# asp.net?

推荐答案

这是想法是创建一个按钮列表中，你会保存您在btnCreateDynamic_click创建的按钮。

An idea would be to create a list of buttons in which you'd store the buttons you created in btnCreateDynamic_click.

您可以有这样的方法：

private Button CreateButton(string id, string name)
        {
            Button b = new Button();
            b.Text = name;
            b.ID = id;
            b.Click += new EventHandler(Button_Click);
            b.OnClientClick = "ButtonClick('" + b.ClientID + "')";
            return b;
        }

在btnCreateDynamic_click你可以有这样的：

in btnCreateDynamic_click you could have something like:

Button b = CreateButton("dinamicBtn"+myDinamicButtonsList.Count.ToString(),"dinamicBtn"+myDinamicButtonsList.Count.ToString());
myDinamicButtonsList.add(b);

，并在页面加载，例如，你可以不喜欢

and in the pageLoad for example you could do something like

foreach(button btn in myDinamicButtonsList){
    form1.Controls.Add(btn));
}

List<Button> myDinamicButtonsList = new List<Button>();

myDinamicButtonsList应某处，从那里可以每个请求后检索存储

myDinamicButtonsList should be stored somewhere from where it could be retrieved after each request.

修改： 在页面加载，你可以有这样的事情：

EDIT: In page load you could have something like this:

if(Session["myDinamicButtons"] == null){
    List<Button> myDinamicButtonsList = new List<Button>();
    Session["myDinamicButtons"] = myDinamicButtonsList;
}

foreach(Button btn in Session["myDinamicButtons"] as List<Button>){
    form1.Controls.Add(btn));
}

我没有测试它，但它应该工作。

i didn't tested it but it should work.

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