private void btnOk_Click(object sender, RoutedEventArgs e)
        {
            //数据验证
            if (this.txtClassName.Text.Trim() == "")
            {
                MessageBox.Show("类型名称不能为空!", "提示");
                return;
            }

            if (ViewModel.EditState == "add")
            {
                if (ViewModel.CreateDesignClass())
                {
                    this.Close();
                }
            }

            if (ViewModel.EditState == "modify")
            {
                if (ViewModel.EditDesignClass())
                {
                    this.Close();
                }
            }
        }
        private void btnOk_Click(object sender, RoutedEventArgs e)
        {
            //数据验证
            if (this.txtClassName.Text.Trim() == "")
            {
                MessageBox.Show("类型名称不能为空!", "提示");
                return;
            }
            if (this.txtRelationPropertyAName.Text.Trim() == "")
            {
                MessageBox.Show("关联属性一的名称不能为空!", "提示");
                return;
            }
            if (this.txtRelationPropertyADbFieldName.Text.Trim() == "")
            {
                MessageBox.Show("关联属性一的存储名称不能为空!", "提示");
                return;
            }

            if (this.txtRelationPropertyBName.Text.Trim() == "")
            {
                MessageBox.Show("关联属性二的名称不能为空!", "提示");
                return;
            }
            if (this.txtRelationPropertyBDbFieldName.Text.Trim() == "")
            {
                MessageBox.Show("关联属性二的存储名称不能为空!", "提示");
                return;
            }
            if (ViewModel.EditState == "add")
            {
                if (ViewModel.CreateDesignClass())
                {
                    this.Close();
                }
            }
        }