Beep sound when error occurs using C#

[ramya naidu]

Hai iam working on a project were i have some textboxes in that one textbox should allow only digits from 0 to 360 and for that i have a error provider when i enter 361 the error provider blinks i need a beep sound when that error provider blinks how can i get this beep sound plz any one help me in this

[CyberSoftHari]

[CODE=cpp][DllImport("core dll.dll")]
public static extern int PlaySound(
string szSound,
IntPtr hModule,
int flags);[/CODE]
you can import the above dll to play beep. What version of .Net version you are using.

[ramya naidu]

Iam not using .net iam using visual studio c# express so can u help me plz

[CyberSoftHari]

I think you are not good in basics.

[CODE=cpp][DllImport("kern el32.dll")]
public static extern bool Beep(int freq,int duration);[/CODE]