Ajax Control Toolkit-mutuallyexclusivecheckbox

This control can be extended to ASP. net checkbox, a group of check boxes that add this extension only need to set the same key, then only one check box can be selected at a time (checked), similar to radio button. The use of checkboxes however allows you to choose to uncheck a value which is not possible normally with radio buttons. this also provides a more consistent and expected interface than using JavaScript to allow the de-selection of a radiobutton item.

 <  ASP: scriptmanager  ID  = "Scriptmanager1"  Runat  = "Server"    />  
  <  Div  >  
  <  BR  />  
  <  Table  >  
  <  Tr  >  
 <  TD  Style  = "Width: 163px; Height: 30px ;"  >  
Is over 25 years of age
  </  TD  >  
  <  TD  Style  = "Width: 186px; Height: 30px ;"  > 
Is over 35 years of age
  </  TD  >  
  <  TD  Style  = "Width: 186px; Height: 30px ;"  >  
Is over 45 years of age
  </  TD  >  
  </ Tr  >  
  <  Tr  >  
  <  TD  Style  = "Width: 163px"  >  
  <  ASP: checkbox  ID  = "Isover25" Runat  = "Server"  Text  = "I am over 25 years old ."     /> <  BR  />  
  <  Ajaxtoolkit: mutuallyexclusivecheckboxextender  ID  = "Isover25ex"  Runat  = "Server"  Targetcontrolid = "Isover25"  
Key  = "Agechoice"     />  
  </  TD  >  
  <  TD  Style  = "Width: 186px"  >  
  < ASP: checkbox  ID  = "Isover35"  Runat  = "Server"  Text  = "I am over 35 years old ."     /> <  BR  />  
  <  Ajaxtoolkit: mutuallyexclusivecheckboxextender  ID  = "Isnotover35ex" Runat  = "Server"  
Targetcontrolid  = "Isover35"  Key  = "Agechoice"     />  
  </  TD  >  
  <  TD  Style = "Width: 186px"  >  
  <  ASP: checkbox  ID  = "Isover45"  Runat  = "Server"  Text  = "I am over 45 years old ."     /> <  BR  />  
  < Ajaxtoolkit: mutuallyexclusivecheckboxextender  ID  = "Isnotover5ex"  Runat  = "Server"  Targetcontrolid  = "Isover45"  
Key  = "Agechoice"     />  
  </  TD  >  
 </  Tr  >  
  </  Table  > 

 

Targetcontrolid-The ID of the checkbox to modify.

Key-The unique key to use to associate checkboxes. This key does not respect inamingcontainer renaming.