当前上下文中不存在名称“CString”

[lixiang4024]

protected void btnSubmit_Click(object sender, EventArgs e)
{
//private void btnSubmit_Click(object sender, System.EventArgs e)
{
string strDocExt;
//strDocType用于保存上传文件的类型
string strDocType;

//用于保存文件大小

int intDocLen;

//Stream用于读取上传数据

Stream objStream;
SqlConnection BooksConn;
SqlCommand cmdUploadDoc;

if (IsValid)
{
if (txtFileContents.PostedFile != null)
{
//文件类型
strDocExt = CString.Right(txtFileContents.PostedFile.FileName, 4).ToLower();

switch (strDocExt)
{
case ".doc":
strDocType = "doc";
break;
case ".ppt":
strDocType = "ppt";
break;
case ".htm":
strDocType = "htm";
break;
case ".html":
strDocType = "htm";
break;
case ".jpg":
strDocType = "jpg";
break;
case ".gif":
strDocType = "gif";
break;
default:
strDocType = "txt";
break;
}
//上传文件具体内容
intDocLen = txtFileContents.PostedFile.ContentLength;
byte[] Docbuffer = new byte[intDocLen];
objStream = txtFileContents.PostedFile.InputStream;

//文件保存到缓存
//缓存将保存到数据库

objStream.Read(Docbuffer, 0, intDocLen);
BooksConn = new SqlConnection("Server=Server;UID=sa;Database=company");
cmdUploadDoc = new SqlCommand("uSP_BooksUploadFile", BooksConn);
cmdUploadDoc.CommandType = CommandType.StoredProcedure;
cmdUploadDoc.Parameters.Add("@Title ", SqlDbType.VarChar, 200);
cmdUploadDoc.Parameters.Add("@Doc", SqlDbType.Image);
cmdUploadDoc.Parameters.Add("@DocType", SqlDbType.VarChar, 4);
cmdUploadDoc.Parameters[0].Value = txtTitle.Text;
cmdUploadDoc.Parameters[1].Value = Docbuffer;
cmdUploadDoc.Parameters[2].Value = strDocType;
BooksConn.Open();
cmdUploadDoc.ExecuteNonQuery();
BooksConn.Close();
}
}
}
}

[glacier111]

???

[vengair]

CString 是 VC++ 的 怎么跑这里来了？

[vengair]

明白 LZ 的意图了
C# 用这个
string s = txtFileContents.PostedFile.FileName;
strDocExt = s.Substring(s.Lenght - 4, 4);

[vengair]

在跟个 ToLower()
strDocExt = s.Substring(s.Lenght - 4, 4).ToLower();

[lixiang4024]

vengair(韦恩)
用了你这个又提示:

“string”并不包含“Lenght”的定义

[uno]

“Length”

人家字符拼错了

看懂这点英文是起码的要求吧

[lixiang4024]

strDocExt = s.Substring(s.Length - 4, 4).ToLower();

呵呵,解决.哈哈.不好意思.打完这字之后就解决了.

现在习惯了不动脑了,哈哈