Hey guys.I have a frontend application with a search button and an input textBox.how do i connect this to my backend application so when I type a word in the search textbox, it will give out the data related to the word coming from the backend app which is connected to a server and database. i'm using c#..thanks in advance.

place a textbox, datagridview and button on your form writes the search code on button click event pass it the textbox value and display results in datagridview. Check this thread for the tutorials on database and c# will certainly help you in starting your application. The links mentioned will also tell you how to connect your application with database how to query and how to display results