Issue Related to Validated or Leave event of Textbox in C#
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I have written following code on Textbox Validated event :

 

     private void txtHbhakt1_Validated(object sender, EventArgs e)
            {
                
                  //MessageBox.Show("Validated");
                txtHbhakt1.AutoCompleteCustomSource.Add("abcd");
                txtHbhakt1.AutoCompleteCustomSource.Add("abcd1");
                txtHbhakt1.AutoCompleteCustomSource.Add("abcd2");
                txtHbhakt1.AutoCompleteCustomSource.Add("abcd3");           
                
            }

i run the application and Hit TAB Key on Textbox.. it happens nothing.. why?
whenever i use autocompleteCustomSource on Validated or Leave event of Textbox TAB key doesn't working .. 
what is the solution?

Thanks..