Question

将一个值输入到一个asp：文本框中，然后当你点击提交时它会生成一个asp：label，我需要的是获得生成的asp：label并将它传递给一个HTML输入字段。我希望这是HTML或JavaScript格式。

<asp:TextBox CharacterCasing="Upper" ID="usrpart" runat="server" Width="75px" style='text-transform:uppercase' CausesValidation="True"></asp:TextBox><!--entered text and click submit--> 

<asp:Label id="usrpart0" runat="server"></asp:label><br /><!--displays what was typed in the textbox and submitted to the server--> 

<input id="asptext" type="hidden" value=""> <!--this is where i need asp:label's value passed--><!--this value is used to generate a QR code> 

Answer 1

获取标签值

var name = document.getElementById("<%=txtUserName.ClientID %>").value; 

值分配给文本框：

document.getElementById("asptext").value = name ; 

我做了一个基于位置的要求演示是工作演示

HTML

<form id="form1" runat="server"> 
     <div> 
      <asp:Button ID="Button1" OnClientClick="javascript:return CallService();" runat="server" Text="Submit" /> 

      <asp:TextBox CharacterCasing="Upper" ID="usrpart" runat="server" Width="75px" style='text-transform:uppercase' CausesValidation="True"></asp:TextBox><!--entered text and click submit--> 

<asp:Label id="usrpart0" runat="server"></asp:Label><br /> 

<input id="asptext" type="hidden" value=""/> 
     </div> 
    </form> 

Javscript

function CallService() { 
      var usrpart0 = document.getElementById("<%=usrpart.ClientID %>").value; 
      document.getElementById("<%=usrpart0.ClientID %>").innerHTML = usrpart0; 
      document.getElementById("asptext").value = document.getElementById("<%=usrpart0.ClientID %>").innerHTML; 
      alert(document.getElementById("asptext").value); 
     }