Answer to Question #28205 in C# for dhivya muthu
2013-04-15T11:33:21-04:00
how to create a login form with validation,sign in ,signout,register using c#windows application
1
2013-04-15T11:29:36-0400
namespace WindowsFormsApplication1 { public partial class Form1 : Form { public Form1() { InitializeComponent(); button1.Enabled= false; txtPassword.Tag= false; txtLogin.Tag =false; } private voidtxtPassword_Validating(object sender, CancelEventArgs e) { txtPassword.Tag= Validatinglogic(txtLogin.Text); ValidatingOK(); } Provide event handlers on events "Validating"of textbox to volidate login and then to validate login. Below there's an example. private void ValidatingOK() { button1.Enabled= (bool)txtLogin.Tag && (bool)txtPassword.Tag; } private voidtxtLogin_Validating(object sender, CancelEventArgs e) { txtLogin.Tag =Validatinglogic(txtLogin.Text); ValidatingOK(); } private boolValidatinglogic(string text) { return text !="";// Your own logic to validate user input (for example empty fields) } } }
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