对textbox进行验证方法源码

 public void InputValidate(string inputData, Type validateType, bool isRequired, Label lab)
        {
            lab.Text = "";

            if (string.IsNullOrEmpty(inputData))
            {
                if (isRequired)
                {
                    IsPassed = false;
                    lab.Text = AppContext._("must be filled");
                }
            }
            else
            {
                if (!validateType.Equals(typeof(String)))
                {
                    MethodInfo[] info = validateType.GetMethods();
                    object[] objs = new object[2];
                    objs[0] = inputData;
                    objs[1] = Activator.CreateInstance(validateType);
                    object val = null;

                    for (int i = 0; i <= info.Length - 1; i++)
                    {
                        if (info[i].Name == "TryParse")
                        {
                            val = info[i].Invoke(null, objs);
                            break;
                        }
                    }

                    if (!bool.Parse(val.ToString()))
                    {
                        IsPassed = false;
                        lab.Text = AppContext._("input data format is error.");
                    }
                }
            }
        }