validate a textbox that should allow only numbers

Question

in winforms i want to validate a textbox that should allow only numbers

and also in other textboxes it should allow other than special characters

and also i tried to print the text in the textboxes in a label but i got like this

(apple boy cat doll)

but i want like below

apple

boy

cat

doll

please tell me how to do this?

Suthish Nair · Answer

you can use MaskedTextBox control.. or private void textBox1_KeyPress(object sender KeyPressEventArgs e) { int charCode = Convert.ToInt32(e.KeyChar); if (charCode == 3 || charCode == 22) { MessageBox.Show(Copy/Cut Paste not allowed); e.Handled = true; } if (char.IsDigit(e.KeyChar) == false & char.IsControl(e.KeyChar) == false) { e.Handled = true; MessageBox.Show(Not Valid Entry ! Validion MessageBoxButtons.OK); } } you need to split the data and use 
 for break line. label1.Text = apple
boy
cat
doll;

Gomathi Palaniswamy · Answer

Hi friend use the below code try { if (txtage.Text !=  && txtage.Enabled) { Convert.ToInt32(txtage.Text); } } catch (Exception ex) { RadMessageBox.Show(enter valid data); txtage.Text = ; }

Sam Hobbs · Answer

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