How to Write The OnClick Function in Biometric data In Asp.net C#

hi mate

pls refer this

https://stackoverflow.com/questions/23884224/create-c-sharp-code-of-onclick-function-in-aspx-cs

protected void btnSubmit_Click(object sender, EventArgs e)
{
    // Code to handle the button click event
    // Perform biometric data processing here
    // Access form controls, validate data, save to database, etc.
}