C# 使用C删除SharePoint文件夹中的文件#

我正在使用SharePoint excel Service操作excel文件，然后使用将其保存到共享文档文件夹

ExcelService.SaveWorkbookCopy()

现在我想删除我先前保存的那些文件。在Asp.NETMVC应用程序中使用C实现这一点的最佳方法是什么

我使用REST服务进行了尝试，但是我找不到任何教程，因为代码是现在的，我得到了一个WebException“远程服务器返回了一个错误：（403）禁止” 我为我的RESTURL尝试了两个版本，都不起作用

var fileSavePath = "http://sharepointserver/Collaboration/workrooms/MyWebSiteName/Shared%20Documents/";
var excelRestPath_1 = "http://sharepointserver/Collaboration/workrooms/MyWebSiteName/_api/web/";
var excelRestPath_2 = "http://sharepointserver/_api/web/";

    public static bool DeleteExcelFromSharepoint(int id, string excelRestPath)
    {
        try
        {
            string filePath = "/Shared%20Documents/" + id + ".xlsm";
            string url = excelRestPath + "GetFileByServerRelativeUrl('" + filePath + "')";

            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
            request.Method = "DELETE";
            request.Headers.Add(HttpRequestHeader.IfMatch, "*");
            request.Headers.Add("X-HTTP-Method", "DELETE");

            request.Credentials = System.Net.CredentialCache.DefaultCredentials;

            using (var response = (HttpWebResponse)request.GetResponse())
            {
                if (response.StatusCode != HttpStatusCode.OK)
                {
                    throw new ApplicationException(String.Format("DELETE failed. Received HTTP {0}", response.StatusCode));
                }
                return true;
            }

        }
        catch (Exception ex)
        {
            CustomLogger.Error("Error deleting Excel from Sharepoint", ex);
            return false;
        }
    }

---

使用nuget package

Microsoft.SharePointOnline.CSOM

：

using (var sp = new ClientContext("webUrl"))
{
    sp.Credentials =  System.Net.CredentialCache.DefaultCredentials;
    sp.Web.GetFileByServerRelativeUrl(filePath).DeleteObject();
    sp.ExecuteQuery();
}

这将确保文件被删除-如果要确保文件在删除过程中存在：

using (var sp = new ClientContext("webUrl"))
{
    sp.Credentials =  System.Net.CredentialCache.DefaultCredentials;
    var file = sp.Web.GetFileByServerRelativeUrl(filePath);
    sp.Load(file, f => f.Exists);
    file.DeleteObject();
    sp.ExecuteQuery();
    if (!file.Exists)
        throw new System.IO.FileNotFoundException();
}

---

如果您使用的是REST，可以参考链接 （）

我的示例代码是：

string resourceUrl = "https://<BaseURL>/sites/<SubSite>/_api/web/GetFileByServerRelativeUrl('/sites/<SubSite>/Documents/New Folder/xyz.docx')";            

        var wreq = WebRequest.Create(resourceUrl) as HttpWebRequest;
        wreq.Headers.Remove("X-FORMS_BASED_AUTH_ACCEPTED");
        wreq.Headers.Add("X-FORMS_BASED_AUTH_ACCEPTED", "f");
    wreq.Headers.Add("X-HTTP-Method", "DELETE");
        //wreq.Headers.Add("Authorization", "Bearer " + AccessToken);
        wreq.UseDefaultCredentials = true;
        wreq.Method = "POST";
        wreq.Accept = "application/json; odata=verbose";
        wreq.Timeout = 1000000;
        wreq.AllowWriteStreamBuffering = true;
        wreq.ContentLength = 0;
        string result = string.Empty;
        string JsonResult = string.Empty;
        try
        {
            WebResponse wresp = wreq.GetResponse();}
        catch (Exception ex)
        {
            LogError(ex);
            result = ex.Message;
        }

string resourceUrl=”https:///sites//_api/web/GetFileByServerRelativeUrl（'/sites//Documents/New Folder/xyz.docx'）”；
var wreq=WebRequest.Create（resourceUrl）作为HttpWebRequest；
wreq.Headers.Remove（“基于X-FORMS的验证已接受”）；
wreq.Headers.Add（“X-FORMS_-BASED_-AUTH_-ACCEPTED”，“f”）；
wreq.Headers.Add（“X-HTTP-Method”，“DELETE”）；
//wreq.Headers.Add（“授权”、“承载人”+访问令牌）；
wreq.UseDefaultCredentials=true；
wreq.Method=“POST”；
wreq.Accept=“application/json；odata=verbose”；
wreq.Timeout=1000000；
wreq.AllowWriteStreamBuffering=true；
wreq.ContentLength=0；
字符串结果=string.Empty；
string JsonResult=string.Empty；
尝试
{
WebResponse wresp=wreq.GetResponse（）；}
捕获（例外情况除外）
{
对数误差（ex）；
结果=例如消息；
}

尝试了上面的答案，但仍然没有删除文件，我发现这个方法非常有效

var request = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(“FullSharePointURIofDocument“);
request.Timeout = System.Threading.Timeout.Infinite;
request.Credentials = new 
System.Net.NetworkCredential(“SharePointUser“,”SharePointUserPassword“);
request.Method = “DELETE“;
var response = (System.Net.HttpWebResponse)request.GetResponse();

---

谢谢

谢谢，看起来很棒。虽然我创建了这些文件，但我还是尝试了它，并得到了一个UnauthorizedAccessException。我是否必须激活SharePoint上的某些特殊功能才能删除文件？在这种情况下，使用默认凭据通常不起作用，您可能需要使用Microsoft.SharePoint.Client.SharePointOnlineCredentials或System.Net.NetworkCredential。如果需要传递用户权限，请使用OAuth.Good add，方法是指定必须将站点和子站点添加到relativeURL。我花了一点时间才找到。以下是另一个供参考的链接：