如果具有多个空文本框的语句

Question

if (txtUserID.Text == String.Empty && 
    txtFN.Text == String.Empty && 
    txtMI.Text == String.Empty && 
    txtLN.Text == String.Empty && 
    txtUsername.Text == String.Empty && 
    txtPassword.Text == String.Empty && 
    txtConfirm.Text == String.Empty)
{
    XtraMessageBox.Show("All fields are required!", 
                        "Warning", 
                        MessageBoxButtons.OK, 
                        MessageBoxIcon.Warning);
}

大家好,有人可以给我正确的代码.我想确保在输入数据时如果有一个空的文本框,系统将不会继续,除非它填充所有空白文本框:)

Answer 1

你有AND(&&),应该是OR(||)

if (txtUserID.Text == String.Empty || txtFN.Text == String.Empty || txtMI.Text == String.Empty || txtLN.Text == String.Empty || txtUsername.Text == String.Empty || txtPassword.Text == String.Empty || txtConfirm.Text == String.Empty)
        {
            XtraMessageBox.Show("All fields are required!", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
        }