上传控件的错误??谁能帮帮我
protected void Button1_Click(object sender, EventArgs e)
{
if (this.File1.Value != null) ???file1是什么意思??
{
//获取文件的完整路径
string path = this.File1.PostedFile.FileName;
//获取文件名
string filename = System.IO.Path.GetFileName(path); ????filename 是什么意思??
Response.Write(path);
Response.Write(filename);
//获取文件的长度
= File1.PostedFile.ContentLength; ???又是什么??
Byte[] length = new Byte[filelength];
Response.Write(filelength);
Stream instream = File1.PostedFile.InputStream; ???Stream instream 是什么意思???
instream.Read(length, 0, filelength);
SqlConnection conn = new SqlConnection("server=.;uid=sa;database=Future");
string addpic = "insert into pic values(@picture)";
SqlCommand com = new SqlCommand(addpic, conn);
com.Parameters.Add(new SqlParameter("@picture", SqlDbType.Binary, filelength));
com.Parameters["@picture"].Value = length;
conn.Open();
com.ExecuteNonQuery();
Response.Write("cheng gong");
Response.OutputStream.Write(length, 0, filelength);
//Response.ContentType="image/jpg";
conn.Close();
}
}
[解决办法]
???file1是什么意思??------->上传控件的名字
????filename 是什么意思??--->变量用来接收文件名
filelength = File1.PostedFile.ContentLength; ???filelength是什么??
----->变量未定义类型,错误,ContentLength是取文件长度
int filelength = File1.PostedFile.ContentLength;
???Stream instream 是什么意思??? 是流呀要引用IO包
using System.IO;