为什么我的点击事件没有到达？ [英] Why is my click event not being reached?

问题描述

我在* .ascx.cs文件中动态（在C＃中）在Sharepoint页面上创建一个按钮：

I'm creating a button on a Sharepoint page dynamically (in C#) in my *.ascx.cs file:

Button btnSave = null;

protected void Page_Load(object sender, EventArgs e)
{
    base.OnPreRender(e);

    this.Controls.Add(new LiteralControl("<br />"));
    btnSave = new Button();
    btnSave.ID = "btnSave";
    btnSave.Text = "Save the Data";
    btnSave.Click += new EventHandler(btnSave_Click);
    btnSave.Visible = false;
    this.Controls.Add(btnSave);
}

protected void btnSave_Click(object sender, EventArgs e)
{
    btnSave.Text = "You clicked me!";
    PostTravelData ptd = new PostTravelData();
}

我在*中的客户端jQuery中将其设置为可见。 ascx文件：

I set it visible at the righ time in the client-side jQuery in the *.ascx file:

$('#btnSave').show();

但是，单击按钮不会到达btnSave_Click（）事件 - 从未到达断点，也不是按钮的文字已更改。为什么不呢？

However, clicking the button does not reach the btnSave_Click() event - the breakpoint there is never reached, nor is the button's text changed. Why not?

推荐答案

（'＃btnSave'）。show（）;

('#btnSave').show();

但是，单击按钮不会到达btnSave_Click（）事件 - 从未到达断点，也不是按钮的文字已更改。为什么不呢？

However, clicking the button does not reach the btnSave_Click() event - the breakpoint there is never reached, nor is the button's text changed. Why not?

让我们看看：

这是服务器端的方式

Lets see:
this is the way of the server side

<asp:button id="btnSave" runat="server" text="Click me" xmlns:asp="#unknown" />

关于服务器（或你n直接在html中执行）

On the server (or you can do it in html directly)

btnSave.OnClick += btnSave_Click;

如果你试图显示/隐藏服务器端控件，这是不正确的：

This is incorrect if you're trying to show/hide server-side control:

（' ＃btnSave'）。show（）;

('#btnSave').show();

这是由于服务器端命名约定，它将所有容器名称添加到id前面，如ctl_00_ctl_01_btnSave。它应该是：

This is due to server side naming convention that adds all containers names in front of the id like ctl_00_ctl_01_btnSave. It should be:

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