WebForm gets the value selected by checkbox Several simple examples of of

PS: Recently, I was working on the module of authority management. I found many places to use checkbox, so I wrote a simple example for future study and use.

1. Front-end page:

<form id="form1" method="get" runat="server"> 
<input name="chk_per" type="checkbox" value="3" /> zhang 3 
<input name="chk_per" type="checkbox" value="4" /> li 4 
<input name="chk_per" type="checkbox" value="5" /> The king 5 
<input name="chk_per" type="checkbox" value="6" /> zhao 6 
<input name="chk_per" type="checkbox" value="7" /> sun  
<input name="chk_per" type="checkbox" value="8" /> The pig 8 
<input type="submit" id="btnOK" value=" submit " /> 
</form>

2. Background method:

#region  Gets returned from the front page  CheckBox  The value of the  void GetCheckBoxValue() 
/// <summary> 
///  Gets returned from the front page  CheckBox  The value of the  
/// <para>Request.Form["chk_per"]  Separated by a comma, gets all the selected ones  CheckBox  The value of the </para> 
/// </summary> 
private void GetCheckBoxValue() 
{ 
string user = Request["chk_per"]; 
string[] users = user.Split(new[] { "," }, StringSplitOptions.RemoveEmptyEntries); 
string s = string.Empty; 
foreach (var item in users) 
{ 
s += item + " | "; 
} 
} 

#endregion

protected void Page_Load(object sender, EventArgs e) 
{ 
if (IsPostBack) 
{ 
// Test call  
GetCheckBoxValue(); 
}
}