通過網絡訪問XML文件

Question

我一直在爲這個管理應用程序工作數週，現在已經快完成了。當用戶點擊保存按鈕時應該發生什麼，調用VerifyFields（）方法。之後，應該詢問用戶是否要保存併發送電子郵件。一旦用戶點擊是，它應該發送一封電子郵件到XML文件中的電子郵件地址。我收到錯誤消息「文件：DREmailAddresses.xml未找到：\ fs01 \ Applications \ EMS-Manager。」但是，該文件在那裏並且可以訪問。我已經複製了下面的相關代碼以及image of the error.。

// Begin Email Section 
    public bool VerifyFields() 
    { 
     var status = false; 
     switch (tbxDynPartNumber.Text) 
     { 
      case "": 
       MessageBox.Show(@"Enter Dynalab Part#", @"Input Needed", MessageBoxButtons.OK, MessageBoxIcon.Error); 
       status = true; 
       break; 
     } 
     switch (tbxSupplier.Text) 
     { 
      case "": 
       MessageBox.Show(@"Enter Supplier Name", @"Input Needed", MessageBoxButtons.OK, MessageBoxIcon.Error); 
       status = true; 
       break; 
     } 
     switch (tbxInitiatedBy.Text) 
     { 
      case "": 
       MessageBox.Show(@"Enter Initiator Name", @"Input Needed", MessageBoxButtons.OK, MessageBoxIcon.Error); 
       status = true; 
       break; 
     } 
     switch (orderQty.Text) 
     { 
      case "0": 
       MessageBox.Show(@"Order Quantity Must Be Greater Than 0!", @"Input Needed", MessageBoxButtons.OK, MessageBoxIcon.Error); 
       status = true; 
       break; 
     } 

     switch (dtpDate.Text) 
     { 
      case "": 
       MessageBox.Show(@"Enter A Valid Date.", @"Input Needed", MessageBoxButtons.OK, MessageBoxIcon.Error); 
       status = true; 
       break; 
     } 
     switch (tbxDescription.Text) 
     { 
      case "": 
       MessageBox.Show(@"Enter Description", @"Input Needed", MessageBoxButtons.OK, MessageBoxIcon.Error); 
       status = true; 
       break; 
     } 

     switch (tbxLocation.Text) 
     { 
      case "": 
       MessageBox.Show(@"Enter Location", @"Input Needed", MessageBoxButtons.OK, MessageBoxIcon.Error); 
       status = true; 
       break; 
     } 
     switch (tbxDiscrepancyDescription.Text) 
     { 
      case "": 
       MessageBox.Show(@"Enter Discrepancy Description", @"Input Needed", MessageBoxButtons.OK, MessageBoxIcon.Error); 
       status = true; 
       break; 
     } 
     return status; 
    } 

    public void PrepareEmail(string subject, string message) 
    { 
     if (MessageBox.Show(@"Are you sure you want to save and send Discrepancy Report: " +tbxDRNumber.Text + @"?\n Click YES to save\n Click NO to cancel" , @"Confirm", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes) 
     { 

      SendEmail(subject,message); 
     } 
    } 
    public Array AddEmail() 
    { 
     string[] dRemail = { "", "", "" }; 
     if (File.Exists(@"\\fs01\Applications\EMS-Manager\DREmailAddresses.xml")) 
     { 
      XmlReader emailDocument = new XmlTextReader(@"\\fs01\Applications\EMS-Manager\DREmailAddresses.xml"); 
      while (emailDocument.Read()) 
      { 
       var type = emailDocument.NodeType; 
       switch (type) 
       { 
        case XmlNodeType.Element: 
         if (emailDocument.Name == "DRCreatedAddEmail") 
         { 
          dRemail[0] = emailDocument.ReadInnerXml(); 
         } 
         if (emailDocument.Name == "DRActionNeededAddEmail") 
         { 
          dRemail[1] = emailDocument.ReadInnerXml(); 
         } 
         if (emailDocument.Name == "DRPendingAddEmail") 
         { 
          dRemail[2] = emailDocument.ReadInnerXml(); 
         } 
         else 
         { 
          MessageBox.Show(
           @"The file: 'DREmailAddresses.xml' was not found at: \\fs01\Applications\EMS-Manager"); 
         } 
         break; 
       } 
      } 
     } 
     return dRemail; 
    } 

Answer 1

如果您收到該錯誤信息，那麼你的代碼是越來越近了檢查File.Exists和過去的文檔的閱讀，但只是擊中的其他分支的「if（emailDocument.Name = =「DRPendingAddemail」）「檢查。

所以，你的功能應該是接近這個

public Array AddEmail() 
{ 
    string[] dRemail = { "", "", "" }; 
    if (File.Exists(@"\\fs01\Applications\EMS-Manager\DREmailAddresses.xml")) 
    { 
     XmlReader emailDocument = new XmlTextReader(@"\\fs01\Applications\EMS-Manager\DREmailAddresses.xml"); 
     while (emailDocument.Read()) 
     { 
      var type = emailDocument.NodeType; 
      switch (type) 
      { 
       case XmlNodeType.Element: 
        if (emailDocument.Name == "DRCreatedAddEmail") 
        { 
         dRemail[0] = emailDocument.ReadInnerXml(); 
        } 
        else if (emailDocument.Name == "DRActionNeededAddEmail") 
        { 
         dRemail[1] = emailDocument.ReadInnerXml(); 
        } 
        else if (emailDocument.Name == "DRPendingAddEmail") 
        { 
         dRemail[2] = emailDocument.ReadInnerXml(); 
        } 
        else 
        { 
         MessageBox.Show("Unknown node type " + emailDocument.Name); 
        } 
        break; 
      } 
     } 
    } 
    else 
    { 
     MessageBox.Show(@"The file: 'DREmailAddresses.xml' was not found at: \\fs01\Applications\EMS-Manager"); 
    } 
    return dRemail; 
}