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當我上傳文件。文件大於12mb不上傳和會話過期，而這樣做當文件未上傳大於12 MB時可以執行哪些操作？
protected void populateCategoryList()
{
try
{
string strCon = ConfigurationManager.ConnectionStrings["mcqConnectionString"].ConnectionString;
SqlConnection conn = new SqlConnection(strCon);
SqlCommand command = new SqlCommand("usp_MCQ_GetCategories", conn);
command.CommandType = CommandType.StoredProcedure;
command.Parameters.Add(new SqlParameter("@type", "Video"));
conn.Open();
SqlDataAdapter adapter = new SqlDataAdapter(command);
conn.Close();
DataSet ds = new DataSet();
adapter.Fill(ds, "CategoryList");
lbCategory.Controls.Clear();
if (ds.Tables.Count > 0)
{
DataTable result = ds.Tables[0];
if (result.Rows.Count > 0)
{
for (int i = 0; i < result.Rows.Count; i++)
{
DataRow odrMain = result.Rows[i];
if (odrMain["parent_cat"].ToString().Trim() == "0" || odrMain["parent_cat"].ToString().Trim() == "")
{
lbCategory.Items.Add(new ListItem(odrMain["name"].ToString(), odrMain["id"].ToString()));
for (int k = 0; k < result.Rows.Count; k++)
{
DataRow odr = result.Rows[k];
if (odr["parent_cat"].ToString().Trim() == odrMain["id"].ToString().Trim())
{
lbCategory.Items.Add(new ListItem("\xA0\xA0\xA0\xA0" + odr["name"].ToString(), odr["id"].ToString()));
}
}
}
}
}
}
}
catch (Exception ex)
{
//exception handling
}
}
protected void createMedia_Click(object sender, EventArgs e)
{
string rootPath = Server.MapPath("~/videos/");
if (FileUploadVideos.FileName.Contains(".mp4") || FileUploadVideos.FileName.Contains(".MP4") || FileUploadVideos.FileName.Contains(".mp3") || FileUploadVideos.FileName.Contains(".MP3"))
{
string selectedCategories = "";
for (int i = 0; i < lbCategory.Items.Count; i++)
{
if (lbCategory.Items[i].Selected)
{
selectedCategories += lbCategory.Items[i].Value + ",";
}
}
int[] status = new int[2];
status = SQLHelper.createVideo(tbTitle.Text.Trim(), selectedCategories, Path.GetExtension(FileUploadVideos.FileName), Path.GetExtension(FileUploadPoster.FileName));
if (status[0] == 1)
{
ErrorMessage.Text = "Media added sucessfully. Use above form to add another Video/Podcast";
FileUploadVideos.SaveAs(rootPath + status[1].ToString() + Path.GetExtension(FileUploadVideos.FileName));
if (FileUploadPoster.HasFile)
{
FileUploadPoster.SaveAs(rootPath + status[1].ToString() + Path.GetExtension(FileUploadPoster.FileName));
}
emptyFields();
}
else if (status[0] == -1)
ErrorMessage.Text = "Media already exists. Please try some other Title";
else
ErrorMessage.Text = "Some error occured. Please try again. If problem persists conatct your administrator";
}
else
{
ErrorMessage.Text = "Only MP4 media is allowed to upload.";
}
}