将文本框的值右键输入到“img src”中。 [英] enter the values of the textboxes right into an "img src"

问题描述

我正在尝试将文本框的值输入img src

 <   asp：TextBox     ID   =  TextBox1   文本  =  40.78 < span class =code-attribute>   runat   =  server >  <   / asp：TextBox  >  
 <   asp：TextBox     ID   =  TextBox2   文字  =   -  81.5    runat   = 服务器 >  <   / asp：TextBox  >  
 <   img     src   =  http://www.latlong.net/c/?lat=   &    <％  =   TextBox1.ClientID％ > & long =& <％ = TextBox2.ClientID％> &安培; alt =latlong/> 
 

解决方案

将img设置为runat = server并在代码中更好地设置这些值在后面。

你可以这样做：

 <   asp：textbox     id   =  TextBox1    text   =  40.78    runat   =  server >  <   / asp：textbox  >  
 & lt;   asp：textbox     id   =  TextBox2    text   =   -  81.5    runat   = 服务器 >  <   / asp：文本框 >  
 <   asp：image     id   =   img1    runat   =  server    imageurl   =     /  >  
 
 <   asp：按钮    id   =  Button1    runat   =  server    text   =  go    /  >  

按钮点击

代码背后：

 受保护的  Sub  Button1_Click（发件人作为 对象，e 作为 EventArgs）句柄 Button1.Click 
 img1.ImageUrl =   http://www.latlong.net/c/?lat= + textbox1.text +   long = + textbox2.text +   alt = latlong 
 结束  Sub  

< blockquote>我假设你正在进行地理定位？



你可以这样做：

 <   asp：textbox     id   =  TextBox1    text   =  40.78    runat   = 服务器    xmlns：asp   = ＃unknown >  < ;   / asp：textbox  >  
 <   asp：textbox     id   =  TextBox2    text   =  -81.5    runat   =  server    xmlns：asp  < span class =code-keyword> = ＃unknown >  <   / asp：textbox  >  
 <   asp：image    < span class =code-attribute> id   =  img1    runat   = 服务器    imageurl   =      xmlns：asp   = ＃unknown    /  >  
 
 <   asp：按钮    id   =  Button1    runat   =  server    text   =  go     xmlns：asp   = ＃unknown    /  >  

按钮点击

代码落后：

 受保护的  Sub  Button1_Click（发件人作为 对象，e  As  EventArgs）句柄 Button1.Click 
 img1.ImageUrl =   http://www.latlong.net/c/?lat= + textbox1.text +   long = textbox2.text +   alt = latlong 
 结束  Sub  

I am trying to enter the values of the textboxes right into an "img src"

<asp:TextBox ID="TextBox1" Text="40.78" runat="server"></asp:TextBox>
<asp:TextBox ID="TextBox2" Text="-81.5" runat="server"></asp:TextBox>
<img src="http://www.latlong.net/c/?lat=" & <%=TextBox1.ClientID%> & "long=" & <%=TextBox2.ClientID%> & " alt="latlong" />

解决方案

set img as runat=server and better set these values in code behind .

you could do something like this:

<asp:textbox id="TextBox1" text="40.78" runat="server"></asp:textbox>
    <asp:textbox id="TextBox2" text="-81.5" runat="server"></asp:textbox>    
    <asp:image id="img1" runat="server" imageurl="" />

<asp:button id="Button1" runat="server" text="go" />

on button click
code behind:

Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        img1.ImageUrl = "http://www.latlong.net/c/?lat=" + textbox1.text + "long=" + textbox2.text + "alt=latlong"
    End Sub

im assuming you are geolocating?

you could do something like this:

<asp:textbox id="TextBox1" text="40.78" runat="server" xmlns:asp="#unknown"></asp:textbox>
    <asp:textbox id="TextBox2" text="-81.5" runat="server" xmlns:asp="#unknown"></asp:textbox>    
    <asp:image id="img1" runat="server" imageurl="" xmlns:asp="#unknown" />

<asp:button id="Button1" runat="server" text="go" xmlns:asp="#unknown" />

on button click
code behind:

Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        img1.ImageUrl = "http://www.latlong.net/c/?lat=" + textbox1.text + "long=" textbox2.text + "alt=latlong"
    End Sub

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