title: How to add Data To GridView From TextBox & DropDownList
body: <p>I have controls like TextBox, DropDownList and button on page.</p>
  
  <p>When I enter data to TextBox, DropDown and if I click on button then it should add to GridView cell's TextBox and DropDownList respectively. </p>
  
  <p>Example, When I enter the data to text box and hit the save button, I need to show it to GridView.</p>
  
  <p>No data from DB.</p>
  
  <p>May i know how to do it? Any Example code for reference ?  Kindly advise, thank you</p>