Question

我需要根据模板NewsletterTemplate.aspx文件发送电子邮件简报。

我需要将ArticleID和Language传递给NewsletterTemplate.aspx文件，该文件位于“_admin”文件夹下。

由于某种原因，它给了我以下错误 System.ArgumentException: Illegal characters in path.如果我从URL中删除QueryString部分，那么它不会产生任何错误，但我无法提取文章

下面是代码示例。我很感激这方面的帮助

String to, subject, message;
bool isHtml;
isHtml = true;
to = txtEmail.Text;
subject = txtEmailSubject.Text;

ListDictionary replacements = new ListDictionary();
string MessageBody = String.Empty;
string filePath = System.Web.HttpContext.Current.Request.PhysicalApplicationPath;

//String TemplatePath = "\_admin\NewsletterTemplate.aspx?ArticleID=" + ddArticleList.SelectedItem.Value.ToString() + "&Language=1";

using (StreamReader sr = new StreamReader(filePath + @"\_admin\NewsletterTemplate.aspx?ArticleID=" + ddArticleList.SelectedItem.Value.ToString() + "&Language=1"))
{
    MessageBody = sr.ReadToEnd();
}
MailDefinition mailDef = new MailDefinition();
MailMessage msgHtml = mailDef.CreateMailMessage(to, replacements, MessageBody, new System.Web.UI.Control());
message = msgHtml.Body.ToString();
//send Email
Helper.SendEmailNewsletter(to, subject, message, isHtml);

Answer 1

StreamReader构造函数希望传递文件名，而不是URL地址。您不能在文件名中包含查询字符串参数。

如果要传递查询字符串参数，可以使用WebClient类向webform发送HTTP请求：

using (var client = new WebClient())
{
    MessageBody = client.DownloadString("http://example.com/NewsletterTemplate.aspx?ArticleID=" + HttpUtility.UrlEncode(ddArticleList.SelectedItem.Value.ToString()) + "&Language=1");
}

我尝试读取.aspx文件时StreamReader文件路径错误

1 个答案: