在InnerHTML中的代码后面添加一个ASP控制页面 [英] Adding a ASP Control to page from Code Behind within InnerHTML

问题描述

我试图从后面的代码中向网页添加一个按钮。我的主页上有一个空的div，可以在需要时显示。然而，我希望动态创建的内容可以根据条件而改变。

我已经意识到，在我的ASP Control中，我使用了一个/（反斜杠），它取消我的HTML。我现在遇到的问题是了解如何使用代码解决这个问题，有没有办法将ASP控件添加到网页中？我开放给InnerHtml之外的建议。

我创建我的按钮就像这样（在我的代码背后）：

  string buttonout = string.Format（< asp：Button ID = \helpButton_0\CommandArgument = \0 \CssClass = \ HelpButton \runat = \server \Text = \？\/>）; 
 innercontent [0] = string.Format（< table>< tr>< td>带领乘客信息< / td>< / tr>< tr>< td>在这里deafaul we < / td>< / tr>< tr>< td> { 0}< / td>< / tr>< / table>+ buttonout）; 
  

如上所述，这是行不通的原因是因为InnerHtml讨厌反斜杠，我想。

我确实有解决方案;
$ b

 < div id =HelpBoxDivrunat =serverVisible =假> 
< div id =HelpBoxDiv_Toprunat =serverVisible =true> 
< / div> 
< div id =HelpBoxDiv_Bottomrunat =serverVisible =true> 
< asp：Button ID =button_HelpBox_falserunat =server/> 
< / div> 
< / div> 
  

然后，我会将Innerhtml添加到_Top Div，而不是我现在正在执行的HelpBoxDiv 。然而，这个解决方案并没有教会我什么。

我在这里提出问题犹豫不决，因为我知道很多问题都被问到了，我确信这个问题有之前，但我没有找到解决方案。任何帮助我们都非常感谢。

谢谢。

解决方案

我已经意识到，在我的ASP控件中，我使用了一个/（反斜杠），
取消了我的HTML。我现在遇到的问题是理解
如何通过代码解决这个问题，有没有办法将ASP控件添加到
网页中？我接受InnerHtml以外的建议。

您不能像字面字符串那样添加ASP.Net服务器控件。

相反，您希望将动态服务器控件添加到以下方法 -

ASPX

 < asp：PlaceHolder runat =serverID =PlaceHolder1>< / asp：PlaceHolder> 
  

代码隐藏

  protected void Page_Init（object sender，EventArgs e）
 {
 var button = new Button 
 {
 ID =helpButton_0，
 CommandArgument = 0，
 CssClass =HelpButton，
 Text =？ 
}; 
 button.Command + = button_Command; 
 PlaceHolder1.Controls.Add（button）; 
} 
 
私人无效按钮命令（对象发件人，CommandEventArgs E）
 {
 //处理动态按钮的命令事件。 
} 
  

I'm trying to add a button to the webpage, from the code behind. I have a single empty div on my main page that visible on and off, when needed. However the content I wish to create dynamically as the div content can change dependent on conditions.

I have realised that within my ASP Control I use a / (backslash) which cancels out my HTML. The problem I now have is understanding how I can get around this with code, is there a way to add ASP Controls to the web page? I am open to suggestions outside of the InnerHtml.

I'm creating my Button like so (in my Code Behind):

      string buttonout = string.Format("<asp:Button ID=\"helpButton_0\" CommandArgument=\"0\" CssClass=\"HelpButton\" runat=\"server\" Text=\"?\"/>");
      innercontent[0] = string.Format("<table><tr><td>Lead Passenger Information</td></tr><tr><td>Here by deafaul we used your detaisl from your profile, if you're not the lead passenger (As in you're booking for someone else) then please change details.</td></tr><tr><td>{0}</td></tr></table>"+ buttonout);

As Said above, The reason this doesn't work is because of InnerHtml hating backslashes, I think.

I do have a solution to this; and that's by adding more divs to the page.

        <div id="HelpBoxDiv" runat="server" Visible="false">
            <div id="HelpBoxDiv_Top" runat="server" Visible="true">
            </div>
            <div id="HelpBoxDiv_Bottom" runat="server" Visible="true">
                <asp:Button ID="button_HelpBox_false" runat="server" />
            </div>
        </div>

I would then add my Innerhtml to the _Top Div, instead of the HelpBoxDiv which I am currently doing now. However this solution doesn't teach me anything.

I am hesitant to ask questions here, as I know a lot of question have been asked and I am sure this one has before, but I didn't find a solution. Any help is much appreciated.

Thank you.

解决方案

I have realised that within my ASP Control I use a / (backslash) which cancels out my HTML. The problem I now have is understanding how I can get around this with code, is there a way to add ASP Controls to the web page? I am open to suggestions outside of the InnerHtml.

You cannot add ASP.Net server control like a literal string.

Instead, you want to add the dynamic server control to the following approach -

ASPX

<asp:PlaceHolder runat="server" ID="PlaceHolder1"></asp:PlaceHolder>

Code Behind

protected void Page_Init(object sender, EventArgs e)
{
    var button = new Button
    {
        ID = "helpButton_0",
        CommandArgument = "0",
        CssClass = "HelpButton",
        Text = "?"
    };
    button.Command += button_Command;
    PlaceHolder1.Controls.Add(button);
}

private void button_Command(object sender, CommandEventArgs e)
{
    // Handle dynamic button's command event.
}

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