Question

当尝试使用同名文件时，我尝试使用SSIS脚本任务将excel文件复制到Sharepoint库中。如果它首先删除旧文件然后复制新的或仅复制并替换新文件并不重要。我无法弄清楚如何删除旧文件，它不会复制新文件直到旧文件消失。到目前为止，我有：

/*
Microsoft SQL Server Integration Services Script Task
Write scripts using Microsoft Visual C# 2008.
The ScriptMain is the entry point class of the script.
*/

using System;
using System.Data;
using Microsoft.SqlServer.Dts.Runtime;
using System.Windows.Forms;
using System.IO;

namespace ST_be5f0817a6b54483a96a8c9e79402175.csproj
{
[System.AddIn.AddIn("ScriptMain", Version = "1.0", Publisher = "", Description = "")]
public partial class ScriptMain : Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTARTScriptObjectModelBase
{

    #region VSTA generated code
    enum ScriptResults
    {
        Success = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Success,
        Failure = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure
    };
    #endregion

    /*
    The execution engine calls this method when the task executes.
    To access the object model, use the Dts property. Connections, variables, events,
    and logging features are available as members of the Dts property as shown in the following examples.

    To reference a variable, call Dts.Variables["MyCaseSensitiveVariableName"].Value;
    To post a log entry, call Dts.Log("This is my log text", 999, null);
    To fire an event, call Dts.Events.FireInformation(99, "test", "hit the help message", "", 0, true);

    To use the connections collection use something like the following:
    ConnectionManager cm = Dts.Connections.Add("OLEDB");
    cm.ConnectionString = "Data Source=localhost;Initial Catalog=AdventureWorks;Provider=SQLNCLI10;Integrated Security=SSPI;Auto Translate=False;";

    Before returning from this method, set the value of Dts.TaskResult to indicate success or failure.

    To open Help, press F1.
*/

    public void Main()
    {
        string fileDir = (string)Dts.Variables["fileDir"].Value;
        string SPDir = (string)Dts.Variables["SPDir"].Value;

        if (File.Exists(Path.Combine(SPDir, "filename.CSV")))
            {
                File.Delete(Path.Combine(SPDir, "filename.CSV"));
            }

        File.Copy(Path.Combine(fileDir, "filename.CSV"), Path.Combine(SPDir, "filename.CSV"));


        Dts.TaskResult = (int)ScriptResults.Success;
    }
}
}

我想我可以通过在脚本之前运行带有sharepoint列表连接器的数据流组件来删除该文件，并让脚本只是复制文件，但我试图避免那么多的组件和连接方法通常听起来更复杂。

欢迎任何帮助或建议。

Answer 1

通过将相关行更改为：File.Copy（Path.Combine（fileDir，＆＃34; filename.CSV＆＃34;），Path.Combine（SPDir，＆＃34; filename.CSV＆＃34）解决了此问题;），真实）;

boolean参数指定是否覆盖现有文件，并且是＆＃34; false＆＃34;如果没有指定。

SSIS脚本删除或替换Sharepoint库文件

1 个答案: