Azure表查詢到csv c＃

Question

我想寫一個.csv文件的Azure表存儲查詢結果並將其存儲在本地機器上（臨時很好）。我能夠查詢沒有問題 - 然後在一個messageBox中顯示結果。我正在使用c＃來做這件事。我不想使用外部應用程序，但會調用PowerShell腳本，如果這是需要的。最終，我試圖下載csv，因此我查詢csv文件而不是azure表存儲以獲取更多功能。 （SQL Server是不是在這個時間的選擇 - 雖然我明白這將讓我的生活變得更輕鬆）

 CloudStorageAccount storageAccount = 
     CloudStorageAccount.Parse ("DefaultEndpointsProtocol=https;AccountName=MyStorageAccountNameHere;AccountKey=MyTableKeyhere 
     CloudTableClient tableClient = storageAccount.CreateCloudTableClient(); 
     CloudTable table = tableClient.GetTableReference("TelephonyIssueLog"); 

     var managerQuery = new TableQuery<IssueEntity>().Where(TableQuery.GenerateFilterCondition("RowKey", QueryComparisons.Equal, "Issues")); 
     System.IO.File.WriteAllText(@"C:\temp\csv.csv", managerQuery); 

Answer 1

其實我想通了： 先從頂部

using CsvHelper; 





     if (string.IsNullOrEmpty(txtFirstN.Text) || string.IsNullOrEmpty(txtLName.Text) || string.IsNullOrEmpty(cbDirection.Text) || string.IsNullOrEmpty(cbPhoneSystem.Text) || string.IsNullOrEmpty(txtCustPhone.Text) || string.IsNullOrEmpty(txtManager.Text) || string.IsNullOrEmpty(txtProgram.Text) || string.IsNullOrEmpty(cbLocation.Text) || string.IsNullOrEmpty(txtPhoneNumber.Text) || string.IsNullOrEmpty(cbIssue.Text) || string.IsNullOrEmpty(cbPhoneSystem.Text)) 
     { 
      MessageBox.Show("Please Fill out the WHOLE Form. Thank you!"); 

     } 
     else 
     { 
      CloudStorageAccount storageAccount = 
       CloudStorageAccount.Parse("DefaultEndpointsProtocol=https;AccountName=myaccountname;AccountKey=my-account-key 
      CloudTableClient tableClient = storageAccount.CreateCloudTableClient(); 
      CloudTable table = tableClient.GetTableReference("TelephonyIssueLog"); 
      //Await is a good command to use here so we don't try to go forward before we verify the table actually exists and error out. 
      //Notice I made the function async. C# is annoying as all out when using async and await so yeah have fun with that :D. -=Chris 
      await table.CreateIfNotExistsAsync(); 
      IssueEntity IssueLog = new IssueEntity("Issues", lblRandom.Text); 
      IssueLog.FirstName = txtFirstN.Text; 
      IssueLog.LastName = txtLName.Text; 
      IssueLog.CallDirection = cbDirection.Text; 
      IssueLog.CustNumber = txtCustPhone.Text; 
      //IssueLog.FirstName = tbFirstName.Text; 
      //IssueLog.LastName = tbLastName.Text; 
      IssueLog.Location = cbLocation.Text; 
      IssueLog.Manager = txtManager.Text; 
      IssueLog.PhoneNumber = txtPhoneNumber.Text; 
      IssueLog.PhoneSystem = cbPhoneSystem.Text; 
      IssueLog.PrimaryIssue = cbIssue.Text; 
      IssueLog.Program = txtProgram.Text; 

      TableOperation insertOperation = TableOperation.Insert(IssueLog); 
      table.Execute(insertOperation); 

然後，來查詢和CSV編輯：

 //get to the cloud storage 

     CloudStorageAccount storageAccount = 
       CloudStorageAccount.Parse("DefaultEndpointsProtocol=https;AccountName=my-account-name;AccountKey=My-Account-Key 
     CloudTableClient tableClient = storageAccount.CreateCloudTableClient(); 
     CloudTable table = tableClient.GetTableReference("TelephonyIssueLog"); 

工作就像一個魅力！

 //initiate the writer 

     var sw = new StreamWriter(@"C:\ProgramData\N3RASupportNotifier\Test.csv"); 
     var writer = new CsvWriter(sw); 

      TableQuery<IssueEntity> query = new TableQuery<IssueEntity>().Where(TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal, "Issues")); 
     //Write each record to CSV 
      foreach (IssueEntity entity in table.ExecuteQuery(query)) 
      { 
      writer.WriteField(entity.FirstName); 
      writer.WriteField(entity.LastName); 
      writer.WriteField(entity.Location); 
      writer.WriteField(entity.Manager); 
      writer.WriteField(entity.PartitionKey); 
      writer.WriteField(entity.PhoneSystem); 
      writer.WriteField(entity.PrimaryIssue); 
      writer.WriteField(entity.Timestamp); 
      writer.NextRecord(); 
      } 

Answer 2

一個簡單的方法，我建議你使用一個名爲ServiceStack.Text來達到你的目的的第三方庫。從Azure表中過濾數據後，可以嘗試添加以下代碼：

string csvString = CsvSerializer.SerializeToCsv<IssueEntity>(managerQuery); 
System.IO.File.WriteAllText(@"C:\temp\csv.csv", csvString);