CODEWITHSUNDEEP
c#
Philip
Philip

Reputation: 269

How to restirct user from entering Space in Textbox C#

I want to restrict the user from entering space in textbox here in my code it simply gets the first input then check if it is space. What I want to do is in the whole text the user can't enter space in textbox 

    private void txtPassword_KeyPress(object sender, KeyPressEventArgs e)
    {
        if ((sender as TextBox).SelectionStart == 0)
            e.Handled = (e.KeyChar == (char)Keys.Space);
        else
            e.Handled = false;
    }

Upvotes: 0

Views: 192

Answers (1)

Mert Cingoz
Mert Cingoz

Reputation: 762

you need to use textbox changed event for prevent copy paste white spaces

    private void txtPassword_TextChanged(object sender, EventArgs e)
    {
        if (txtPassword.Text.Contains(" "))
        {
            txtPassword.Text = txtPassword.Text.Replace(" ", "");
            txtPassword.SelectionStart = txtPassword.Text.Length;
        }
    }

Upvotes: 1

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