I am using file upload control. I Placed fileupload control inside update panel. I can upload the files up to 1 to 2 mb file only. I couldn't upload the file above 2MB. I dint mention specific size also..I am following simple code only. When I upload the above 2mb file ..Its not even going into button click event , Navigating some page and showing below message, Internet explorer cannot display the page, Most likely causes:
- You are not connected to the Internet.
- The website is encountering problems.
- There might be a typing error in the address.
To my work scenario I should capable of uploading 50 mb file . But I couldn't upload 5 mb file. I am copying my code below.
I'm trying to display images in a GridView (yes, still this...). [edit] Before I can come to that I have to upload some images to the database.
I've followed this tutorial for the "upload image to database" code (this worked fine for uploading images, but I don't know if the images were converted to byte):
[URL]
and I've followed this tutorial for the "display images in gridview" code (and "retrieve file" from the tutorial below).
[URL]
It doesn't quite work, the GridView shows but without images
Now I'm trying to change the "save file" code according to this tutorial:
[URL]
but I don't understand everything in it. When I try to upload an image I get an error on this line:
Could not find schema information for the element 'httpruntime'. Could not find schema information for the element 'executionTimeout'. Could not find schema information for the element 'maxRequestLength'.
According to this msdn library link this is how I'm supposed to do it,so what am I missing here?
I have a page where the user must be logged in to upload an image.
When they hit the upload button, after a few seconds the user is logged out and redirected to another page.
The upload never happens. Obviously this is not supposed to happen. This happens 7/8 times out of 10. Sometimes it succeeds, but this is not dependable.
My session is set to InProc and 20
In session_start (global.asax), session timeout is 40
Where do I start debugging this. Not sure if it's a code issue as the code works or is it a session issue as it's the session that gets killed?
I have a system that has several large objects that need to be built and populated each and every time, and these objects may be accessed quite often as well. As a strategy, caching would not be that good for me because there are potentially thousands of these objects which are fairly large. So I propose to serialize the objects to the file system and then deserialize it when I need those objects again. I have several classes that need this serialization functionality.
These objects change as well, so on the next access I check if there were any changes and then I grab only the changes and edit the object, and then reserialize the object.
My question is what is the best way to do this, since I have several classes ..
I have been trying unsuccessfully to retrieve a Session varaible from within an ASHX file that i'm using to build an XML file.
What I am trying to achieve is quite simple really.My ASHX file is used to dynamically build an XML file so that I can then bind it to a TreeView control later on. However the dynamic part isn't quite working because the ID that I need from the session seems to not be passed into the ASHX file.
I have tried using the following methods to do this:
1) Include interfaces IRequiresSessionState and IReadOnlySessionState
2) Tried accessing the value like this: Session["ID"] or context.Session["ID"] or HttpContext.Current.Session["ID"]
I am setting the Session variable in the MasterPage's code behind.
I tried to set the session state in my webconfig file and got this error.. <sessionState timeout = "60"/>
Parser Error Message: It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS.
However if I tried to set it in anther aspx page it seems fine...is there a reason for setting up the virtual directory as an app in IIS ..what are the benefits of doing this, and is it always necessary?
I have a requirement where i need to add file upload contorls dynamically.Intially i have a upload control in my page and button named 'Add fileupload' and another button named 'Upload'.the fileupload control is added dynamically when 'Add fileupload' button is clicked andUpload button is used to upload the files.when i click on 'Add fileupload' button after browsing the file to fileupload control, the new fileuplaod contorl has been adding successfully but the first fileupload control is empty.Can any one please help me how the state of fileuplaod control is maintained.Here is the code
I am using file upload control and the captcha.After fulfill the form and upload the file , if user enter the wrong captcha test and click on button the uploded file being disaaper .I know this is the shortcoming of file upload control but client required thatIt needs to not clear the photo Plz help me out so that i can maintain the uploaded file state and have to capable so that user does not need to uploaded file again.
I have an old application built with J#.Now I'm changing and adding some stuff to it, but when I test it, something happens that didnt before.The application is a document administration system with bills and other documents in PDF, XLS and DOC.When I open a PDF (which opens inline in an iframe in my bowser) the session somehow dies.ever happened before, just saw it today when I was making the changes to the app.If I send the header "content-disposition" as attachment, the session remains. but if I send it inline (which I need) it
I've developed an web application and there are 4 different languages in my project. I want to call the error messages (error handling) from an xml file or database (i am not sure which method is better and fast).
I can create an integer for each different (spesific) error and can call the error text from another source.
I'm trying to set session variables in one page, and retrieve them in my code file in the page that it posts to.
I keep getting this error. I put the correct namespaces in, and enabledSessionState = true to my application files, but no luck.
Session state can only be used when enableSessionState is set to true, either in a configuration file or in the Page directive. make sure that System.Web.SessionStateModule or a custom session state module is included in the <configuration><system.web><httpModules> section in the application configuration.
I'm just calling a session variable, and I get that error
e.g,
Public AUID As Integer = Convert.ToInt16(Session("AUID"))
I am using the async file upload control to upload to a image file. I want the user to upload only jpg files. And for that I am checking the uploadedfile content type in server side, after the upload complets. I wanna check this, before upload starts. There is one javascript method
function startUpload(sender, args){}
but how to access the content type of the file selected by user.
I am fetching data from .xls file and storing it in to database. Then my users work on a single table where I stored all .xls data. But the problem is that it takes tooooo much time.. So, I want to use cache. But I never used this... Can any one tell me this example how can I use cache with database for increasing application speed?
i make a web site using frame but session is expire message is
Object reference not set to an instance of an object Description: HTTP 500. Error processing request.
Stack Trace:
System.NullReferenceException: Object reference not set to an instance of an object at System.Web.UI.Control.OnLoad (System.EventArgs e) [0x00000] in <filename unknown>:0 at System.Web.UI.Control.LoadRecursive () [0x00000] in <filename unknown>:0 at System.Web.UI.Page.ProcessLoad () [0x00000] in <filename unknown>:0 at System.Web.UI.Page.ProcessPostData () [0x00000] in <filename unknown>:0 at System.Web.UI.Page.InternalProcessRequest () [0x00000] in <filename unknown>:0 at System.Web.UI.Page.ProcessRequest (System.Web.HttpContext context) [0x00000] in <filename unknown>:0 My Web Config file is<configuration> <!-- store the database connection info here --> <appSettings> <add key="sBook_StoreDBConnectionString" value="Provider=Microsoft.Jet.OLEDB.4.0;User ID=Admin;Data Source=C:Program FilesCodeChargeExamplesBookStoreBookStore_MSAccess.mdb;Persist Security Info=False" /> </appSettings> <system.web> <httpRuntime executionTimeout="1000" maxRequestLength="2000000" /> <!-- DYNAMIC DEBUG COMPILATION Set compilation debug="true" to enable ASPX debugging. Otherwise, setting this value to false will improve runtime performance of this application. Set compilation debug="true" to insert debugging symbols (.pdb information) into the compiled page. Because this creates a larger file that executes more slowly, you should set this value to true only when debugging and to false at all other times. For more information, refer to the documentation about debugging ASP.NET files. --> <compilation defaultLanguage="c#" debug="true" /> <!-- CUSTOM ERROR MESSAGES Set mode="on" or "remoteonly" to enable custom error messages, "off" to disable. Add <error> tags for each of the errors you want to handle. --> <customErrors mode="Off"/> <!--<customErrors mode="On" defaultRedirect="Login.aspx"> <error statusCode="500" redirect="Login.aspx"/> <error statusCode="404" redirect="Login.aspx"/> <error statusCode="403" redirect="Login.aspx"/></customErrors> --> <!-- AUTHENTICATION This section sets the authentication policies of the application. Possible modes are "Windows", "Forms", "Passport" and "None" --> <authentication mode="None" /> <!-- APPLICATION-LEVEL TRACE LOGGING Application-level tracing enables trace log output for every page within an application. Set trace enabled="true" to enable application trace logging. If pageOutput="true", the trace information will be displayed at the bottom of each page. Otherwise, you can view the application trace log by browsing the "trace.axd" page from your web application root. --> <trace enabled="false" requestLimit="10" pageOutput="false" traceMode="SortByTime" localOnly="true" /> <!-- SESSION STATE SETTINGS By default ASP .NET uses cookies to identify which requests belong to a particular session. If cookies are not available, a session can be tracked by adding a session identifier to the URL. To disable cookies, set sessionState cookieless="true". --> <sessionState mode="InProc" stateConnectionString="tcpip=localhost:42424" cookieless="false" timeout="60" /> <!-- GLOBALIZATION This section sets the globalization settings of the application. --> <globalization requestEncoding="utf-8" responseEncoding="utf-8" /> </system.web> <connectionStrings> <add name="mydb" connectionString="Server=localhost;User=SYSDBA;Password=datacenter;Database=/opt/db/erp2.fdb;Min Pool Size=5;Max Pool Size=60;Connect Timeout=30" providerName="FirebirdSql.Web.Providers" /> <add name="mydb2" connectionString="Server=localhost;User=blackberry;Password=acgmkRMS;Database=/opt/db/pwd.fdb;Min Pool Size=5;Max Pool Size=60;Connect Timeout=30" providerName="FirebirdSql.Web.Providers" /> </connectionStrings></configuration>
I am doing a POC of making my website run faster. Currently it stores huge object data in Session while passing information from one page to another. What I was thinking is to use shared methods and properties instead of session. It works, but wanted tocheck if this is an optimum way to do it. Below is the code that does not use session but still pass object data from one page to another:
i have a form on page1.aspx with several controls (textbox, dropdownlist, etc).on Page1 PageLoad event i load data from database and performe databinding.From Page1 a user can, by clicking a specific button, move to Page2.aspx to insert some details and, after saving details, he returns to page1.
if save changes are made on control on page1 before save them to db, obviously, these are lost on return from page2 (because are reloaded on pageload from db).How can i save control status between pages round trip?
I am building an excel file using the OpenXml sdk 2.0. I am putting it in a memory stream and outputting it to the browser.The problem I am receiving is wiht IE 9 if I click Open it says "filename couldn't be downloaded". If I hit save/save as and save it to the filesystem, then open it, the file opens fine with no errors.
In Firefox regardless of if I use save or open the file when opened in excel says its corrupt.I already built the file by writing it to the filesystem first and that code works. Also since saving to desktop in IE lets me open the file, im assuming the problem has to be with the settings on the Response.BinaryWrite.
I have tried changing the buffer types, changing the content types to include "application/octet-stream", and tried using the extension/content type for office 2003 instead of 2007/2010...Here is my code
Code:
Dim byteArray As Byte()
Using mStream As New MemoryStream Using spreadSheetDoc As SpreadsheetDocument = SpreadsheetDocument.Create(mStream, SpreadsheetDocumentType.Workbook) Dim workBPart As WorkbookPart = spreadSheetDoc.AddWorkbookPart Dim workSPart As WorksheetPart = workBPart.AddNewPart(Of WorksheetPart)()
i want to upload picture throw FileUpload control and then store it in session, after store in session i want to read it out to image control and insert to database.
