Asp.net Summary of getting checkbox values in datalist

Foreground example Code The following figure shows how to use the datalist control to display studentid and name in the student table. Copy code The Code is as follows: <asp: datalist id = "dltable" runat = "server">
<Itemtemplate>
<TD align = "center">
<Asp: Label id = "lblid" runat = "server" text = '<% # eval ("studentid") %> 'visible = "false"> </ASP: label>
<Asp: checkbox id = "chkbox" runat = "server"/>
</TD>
<TD>
<% # Eval ("studentname") %>
</TD>
<TD>
<% # Eval ("studentid") %>
</TD>
</Itemtemplate>
</ASP: datalist>

The background code is as follows:Copy codeThe Code is as follows: // new stringbulider instance sbitems

Stringbuilder sbitems = new stringbuilder ();
Foreach (datalistitem item in dltable. Items)
{

// Obtain the foreground Control
Checkbox chkbox = item. findcontrol ("chkbox") as checkbox;
Label LBID = item. findcontrol ("lblid") as label;

// If the checkbox is checked, assign the value bound to the corresponding label to sbitems for subsequent operations, such as deletion.
If (chkbox = NULL | lblid = NULL)
{
Continue;
}
If (chkbox. Checked)
{
Sbitems. append (lblid. Text. tostring ());
Sbitems. append (",");
}
}

// Remove the comma because a comma is added.
If (! Sbitems. tostring (). Trim (). Equals (string. Empty ))
{
Sbitems. Remove (sbitems. Length-1, 1 );
}

in this way, the value selected in the front-end checkbox is obtained, but I feel that this method is a little more complicated. If you can better use C # To obtain the checkbox value, please kindly advise. I 'd like to know how to use the checkboxlist method.