need to show an error message...

[stanleydavidt]

sir, i'm sorry for having lack of knowledge in coding.

i need to convert the textbox field to numeric field.i used the code like this

Convert.ToInt32(textBox1.Text); this code is used to convert string to integer.

Now i need to print an error message by messagebox like "Please enter the Number"..

the following codes i made having no sense i think..

if(String.Equals(textBox1.Text) == true)
{
MessageBox.Show("Please enter the Number");
}

can you help me???

[GaryTexmo]

I'd suggest having a look at the int.TryParse method here instead. Have a look at the MSDN page: http://msdn.microsoft.com/en-us/library/f02979c7.aspx

You can use this as your if check before displaying the error message. Please have a look at the examples on the bottom of the page.

You can likely put this code in one of the validation events on the textbox.