如何检查< input type ="复选框"已被选中 [英] how to check if <input type="checkbox " has been selected

问题描述

e.g。我有两个复选框，即CS和VB，我只想知道使用后面的代码选择哪一个。

解决方案

如果假设你有chkCS和chkVB作为复选框（假设它们是输入类型，可从服务器端访问）然后您可以使用以下代码检查它们是否被选中：

  if （chkCB.Checked ==  true ）
 {
 Console .Write（ 复选框CS被选中）; 
} 
  else  {
 Console.Write（ 复选框CS未选中）; 
} 

chkVB的方式相同。

你可以尝试这个 -

  bool  chkStatus =（Request.Form [  YourCheckboxId] ==   on）？  true ： false ; 

希望，它会有所帮助：）

您好b $ b试试这个

 <   asp：CheckBox     runat   =  server    text   =  CS    OnClick   =  alert（'CS'）;    /  >  
 <   asp：CheckBox  < span class =code-attribute>   runat   =  server    text   =  VB    OnClick   =  alert（'VB'）;    /  >  

或试试这个

 function gh（msg）{
 alert（你被点击： + msg）; 
} 
 
 
 <   asp：CheckBox     ID   =  CheckBox1    runat   =  server   文本  =  VB    OnClick   =  gh（'VB'）;    /  >  
 < span class =code-keyword><   asp：CheckBox     ID   =  CheckBox2    runat   =  server   文字  =  CS    OnClick   =  gh（'CS'）;    /  >  

问候

Aravindb

e.g. I have two checkBoxes namely CS and VB and i just want to know which one is selected using code behind.

解决方案

If suppose you have chkCS and chkVB as checkboxes (assuming they are "input" type and are accessible from server side) then you can use the following code to check if they are checked or not:

if (chkCB.Checked == true)
{
    Console.Write("checkbox CS is checked");
}
else{
    Console.Write("checkbox CS is NOT checked");
}

Same way for chkVB.

You can try this-

bool chkStatus = (Request.Form["YourCheckboxId"] == "on") ? true : false;

Hope, it helps :)

Hi Try this

<asp:CheckBox runat="server" text="CS" OnClick="alert('CS');" />
<asp:CheckBox runat="server" text="VB" OnClick="alert('VB');" />

or try this

 function gh(msg) {
            alert("You are clicked : " + msg);
        }


<asp:CheckBox ID="CheckBox1" runat="server" Text="VB" OnClick="gh('VB');" />
<asp:CheckBox ID="CheckBox2" runat="server" Text="CS" OnClick="gh('CS');" />

Regards
Aravindb

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