how to manipulate another form from the other without reseting its values in c#

Question

i want to disenable my mdiparent when my login form appears and re-enable it again if login is successful

Muralidharan Deenathayalan · Answer

hi, Please find the attached. In the MDIParent Form, on the Load event I have disabled all the controls except MDIClient form then I 'm displaying the MDIChild forms(login forms). In the Login Form, we can be able to access the MDIParent,once the login is success, we can enable the controls in the MDIParent form. Samplecode : MDIParent Form private void MDIParent_Load(object sender, EventArgs e){ EnableDisbleControls(false); ShowLogin(); } public void EnableDisbleControls(bool ISEnable){ foreach (Control c in this.Controls) { if (c.GetType().ToString() != "System.Windows.Forms.MdiClient") c.Enabled = ISEnable; } } private void ShowLogin(){ LoginForm frmLogin = new LoginForm(); frmLogin.MdiParent = this; frmLogin.Show(); } Login Form: MDIParent frm = (MDIParent)this.MdiParent; frm.EnableDisbleControls(true); this.Close(); Hope this helps you.

sbo silver · Answer

thanks you literaly saved me

Vulpes · Answer

Basically, the login form needs a reference to the mdiparent form in order to do this. There are a number of ways to obtain this but the following might be best in your particular circumstances. In the mdiparent class (let's assume it's called Form1), add this static field: internal static readonly Form1 Me; and add a line to its constructor to initialize it: public Form1() { InitializeComponent(); Me = this; } From the login form you can now do: Form1.Me.Enabled = false; and set back to true to re-enable.