I've noticed that Page_Load event fires when file is asynchronously uploaded. How can I check if postback was caused by AsyncFileUpload?
And why FileContent .Position is always at the end of stream? (it started to be so after the deployment, was ok while developing!)
I'm working on a web application using VB.NET. In page load event am calling a remote web service which take time to bring the data. During this process none of the other contents on page are shown(render).
I want to call this remote web service asynchronously so that other data of page is displayed and web service data will be displayed when its available.
Suppose after Uploading file,i want to delete a particular file ,for that i have added a link, that calls a Web Service method to delete file stored in DataBase. That link is added throug JavaScript in OnClientUploadComplete JavaScript function. And this Delete link calls another JavaScript function that in turn calls Web Service method. But that delete link should contain some specified arguments against which file has to be deleted. I am confused how to pass that argument to dynamically created Link.
View 2 RepliesI want to update an updatepanel after the user has uploaded a photo via the asynfileupload control.
Below is my current code. I also tried setting updatemode="conditional" to "false" and then in code-behind call upnlPhotos.update, but without luck...
Upload photo: <cc1:AsyncFileUpload ID="afuPhoto" runat="server" /><br />
<asp:UpdatePanel ID="upnlPhotos" runat="server">
<ContentTemplate>
<asp:DataList ID="dlPhotos" DataSourceID="dsPhotos" DataKeyField="id" RepeatColumns="5" RepeatDirection="Horizontal" GridLines="None" runat="server" >
<ItemTemplate>
<img alt="" src='/images/trouwlocatiefotos/thumbs/<%# Eval("locpath")%>' /><br />
</ItemTemplate>
</asp:DataList>
<asp:SqlDataSource ID="dsPhotos" SelectCommand="SELECT id,locationid,locpath from location_photos lp where locationid=@locationid" ConnectionString="<%$ConnectionStrings:conn1 %>" runat="server">
<SelectParameters>
<asp:QueryStringParameter QueryStringField="id" Type="Int32" Name="locationid" />
</SelectParameters>
</asp:SqlDataSource>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="afuPhoto" EventName="UploadedComplete" />
</Triggers>
</asp:UpdatePanel>
I am using this link for ajax image upload.
[URL]
I want when the image is uploaded, it's name changes. In other words I want to change the name of image.
How can I do this?
I am passing some data in HTTP body using the Ajax request. These contents on server are accessible using Request.InputStream. Now i want to write it to file on server disk Asynchronously. How to do that ?
If the data sent using the HTTP is more then i don't want server application to die/get affected. So that i would like to write it Asynchronously.
Following is sample for reference regarding what i am trying to do ...
System.IO.Stream str;
// Create a Stream object.
str = Request.InputStream;
// TO DO Write it to file asyncronously ...
str.Write(someFile, 0, strLen);
I had a webservice which has two different webmethods which returns some data.
In also had an aspx page where i make asynchronous calls from two controls to the two different methods of webservice respectively.
In this scenario it necessary to create two different instances of the webservice class to call the webmethods?
How to get the full path of the file that is selected using the fileuploader.
View 1 RepliesI would like to use HTML input file type in my aspx page to allow user to browse for a excel file and then read the content of the excel sheet programmatically.If I want to read the excel sheet I need the full path of the file to connect to the excel sheet using asp.net.I do not understand how can I get the full path of the file.I know I can get the filename using postedFile.FileName property.But I need the full path of the file.
View 2 RepliesI am working on an ajax application in which user can see chart (an image) of any available product. For generating chart I am using MS-Chart control. User will click a product link, its id will be passed to server side where image will be generated, returned to client side and displayed. All this is to be done asynchronously.
I thought to call a call web method, but what web method will return ?
I tried using HttpHandler but I did not get how to pass parameter (id) to it ?
i am uploading a file through file upload control , file size has greater then 4 MB, I have to give the proper alert msg to the user that file size exceeding the limit.how to do it , because at server side it is crashed on the IIS and not return to the server to check the file size validation.that how it is possible to validate the file size and give the proper alert messege
View 3 RepliesI need to calculate the file size of uploaded file in order to catch System.Web.HttpException: Maximum request length exceeded.
This is my code
[code]....
I changed the file size in web.config.
<system.web>
<httpRuntime maxRequestLength="10240" />
I have an ASP.NET (3.5) web page which calls a few web methods (SOAP based) using jQuery's .ajax method. The web methods implement 'ScriptMethod' attribute and return JSON data. The web service file (asmx) is local to the same project.
I noticed these web methods execute synchronously on the server which means they run sequentially and affect performance negatively, some methods are waiting, when some of them are slow.
I read this article and I am not sure if I understand that WebMethods which implement Scriptmethod can run synchronously only (they implement IHttpHandler not IHttpAsyncHandler).
If this is true, I might have to change the design. I am looking for other designs, maybe like using WCF, where the browser can call webmethods using JavaScript and the web methods run asynchronously on the server.
How can I make each label control update value asynchronously update when a button is clicked on an .ASPX page?
View 3 RepliesI want to keep the uploaded file name to make it possible to users to download the file under the same name. But how can I implement it? The one option I see is to store each file to folder with unique name (GUID, for example).
View 2 Repliesheavy operation which takes long time to be completed in my asp.net application. I don't want to run the entire operation in one request which may result in a TimeOut error. Instead I want to invoke the operation in a separate thread and poll for the result every x seconds. How can I do this?If the operation gets completed I need to register a script in the ajax postback to hide the loading panel and show the content. However I'm not able to register new scripts and invoke it during ajax postbacks.
View 2 Replieshow to download the uploaded file
I have used this in .aspx page...
I have a web form that uploads files by <asp:FileUpload> control. It uploads files to any folder on the disk (path to uploads can change in web.config, for example "c:UploadedFiles"). After file has been uploaded I need to show a link on the WebPage to download this file.
How it's possible create a link to this file (or what is another solution) on the web page if my website is in completely different place!?
Can anybody gives me the codes to get the date for upload file in asp.net(vb)
View 5 RepliesI need to create a custom web control which will be a part of a class library. This custom web control implements the upload functionality. I have implemented this with a web user control where I have a fixed path to a page in the web project where the upload of files take place and it works just fine.
The created control in this class library is used in the web project. How do I post the uploaded file to a page, say SomeClass.cs, in the class library.
Actually i am trying to storing the uploaded file into database but when i run this codes:
[Code]....
I got this error: " Incorrect syntax near the keyword 'File'.Incorrect syntax near the keyword 'File'. " can anybody tell me why this error came out?I tried toi change my connection string in web config,but it still showing the same error each time i run it in my local.
how to prevent exe file from being uploaded in a website , even if exe file is inside zip file( exe file in a new folder and new folder is then zipped and uploaded)?
View 2 Repliesi'me developing an ASP.NET application and it includes a FileUpload control, an object to show content of a format and a button to do functions. I want that when I upload the file, it will be shown in the object and for this reason i want to know the method to get the URL of the uploaded file.
This is the code:
[Code]....
is there any method on showing the image for the uploaded video files which are in flv format? i saw all the video in youtube got show the image of the video. how to do it?
View 4 RepliesI was trying to copy file to ftp via in my asp.net application... I did it successfully, however; when I open the copied file it is empty, I checked the properties aswell and its showing 0kb.
View 1 Replies
