asp.Net Checkbox has NO value? [closed]

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SOLVED: How can I get VALUE from a checkbox in a datalist? Checkboxes have no VALUE.

<asp:DataList
     ID='dlTest'
     runat='server'
     RepeatColumns开发者_如何学编程='2'>

     <ItemTemplate>
         <asp:HiddenField ID='cbTestID' runat='server' value='<%# Eval("id") %>' />
         <asp:CheckBox ID='cbTest' runat='server' /> <%# Eval("name") %><br />
     </ItemTemplate>

// CODE BEHIND

foreach (DataListItem cb in dlTest.Items) {
    CheckBox chk = (CheckBox)cb.FindControl("cbTest");
    HiddenField hf = (HiddenField)cb.FindControl("cbTestID");
    if(chk.Checked)
    {
        Response.Write(hf.Value);
    }

---

You don't have a VALUE for checkbox because it is just a single item, which means it can be either True or False and you can check it like this,

      if(myCheckBox.Selected)
      { do this.. or even fire an event when it changed. 
         or assign some number to some datatype.. }

On the other hand CheckBoxList does have value like any other list which you can get as

      CheckBoxList1.SelectedValue

or You can do following two things two with checkboxlist

                   CheckBoxList1.SelectedIndex
                   CheckBoxList1.SelectedItem

---

Try using Text CheckBox attribute/property instead of Value.

<asp:CheckBox ID="cbTest" runat="server" Text="Text from Checkbox"/>

protected void Button1_Click(object sender, EventArgs e)
{
    Label1.Text = cbTest.Text;
}

See it in action: demo

Refer to this article for CheckBoxList (using Text attribute/property) implementation.

Or if you really want to use the Value property of the CheckBox, check this article.

HTH.