I have a DTS script which transforms a Tab delimited text file to a table. I get the following error when trying to transform the data of a field that is greater than 255 chars:
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I have seen this issue with importing from Excel with the jet 4.0 engine, however I am importing a text file.
I am using PageMethods to send a few parameters to a webmethod in my codebehind. The method runs a stored procedure and uses the results to build a string that I am returning from the method.
Everything works fine until I try to include too many records in my results..
Once the results I am trying to return hit about 70K, the pagemethod times out even though it is taking about 1 second to process the results.
Is there a buffer limit or limit on the size or results returned from a pagemethod and if so, where can this be set or changed?
Is there a setting in the web.config somewhere to handle pagemethod buffer size?
according to the developer of the web service I am calling.He said "bump up the default values for the following":
maxBufferSize="4096000"
maxReceivedMessageSize="4096000"
Where can I put these to bump them up? I've tried googling these settings, and I get sections of web.config that I don't have. I don't have a WCF client, either. Does this make sense to do from my web service, developed in VS 2010?
I'd like to just call his service without changing anything, get the error, and then go from there. I'm even getting that far because I got some other exception saying server was unable to process request, but it had nothing to do with exceeding a buffer size.
When the user selects the list of files from a page and hit's download selected, then a post back happens to server and starts zipping on the server. This works great until we hit the timeout on the page ( which is default to 90 seconds ) and just returns the process to the page even though the backend process is still zipping. Is it possible to show the size of zip file when the file is being zipped instead of waiting till the end to provide the download link?
View 1 RepliesSome of my users are getting the following error
HTTP 502 Proxy Error - The size of the response header is too large. Contact your ISA server administrator. (12216) Internet Security and Acceleration Server
I am guessing it has to do with the size of hidden "__ViewState" tag in my ASP.NET pages.
I also realize that this is restriction imposed to by IT on the users end and I have no contol over it.
I disabled ViewState on all the controls in my ASP.NET pages. However, __ViewState is still generated very large (as always) to persist control-state (e.g. checkbox, radiobutton, etc.)
I am using Http handler page to get images from database into gridview using C# in asp.net.I am trying to delete the selected row from database, when I click on delete button the row is deleted and the page redirecting to http handler page and firing the error "'Buffer cannot be null. Parameter name:Buffer'".And one more thing is I don't want to go to execute every time pageload event, how can I control this event also.
View 1 Repliesone of my stored procedure has 4 select statments and gets data from large tables,
can i explicitly store result of stored procedure into buffer cache?,
and when calling stored procedure, than returns data from buffer cache?
when i did not have too many controls on the gridview, it was displaying fine. but when i added more controls, it has become very slow and displays a large size for a second or so, and then comes to normal size.
View 1 RepliesI want to set the coulms size of all the columns in the table in the DB based on the maximum width/size of one of those columns of that particular table That is if I have three columns Name(nvarchar 50), Address(nvarchar 70) and Description(nvarchar 100), then I want Name and Address to also be nvarchar 100, can anyone give me the code for the same in VB.
View 1 RepliesI've got a vb.net page that when a user clicks a button in a gridview, it copys the file (row seleted) in the gridview as "Label2" from the webserver to the users pc. (We had to setup a lot of security to get it so the webserver could copy to the users pc). I have that all working fine, but now, I'm trying to see if FileStream will then open the file that was just downloaded on the users PC. I'm not familiar with FileStream, and could use a little push in the right direction. (Disclaimer, yes I know downloading the file directly to the pc is a crazy thing to do, but it's a really long story. :-)
For the FileStream portion, I found this sample, but don't quite understand if I can incorporate it into my button click event. Here's the sample [URL]
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I have problem in my asp.net application. I have some file in floder (PDF, .doc, ,txt ) i want to open these files in my web browser .
Now my problem is large PDF files are not opeing in my browser even some less size pdf files are opeing prefectly and other files are also working good.
The following code i have wriiten to open the file
[Code]....
How to resize large size image like 3-4 mb of size to small size like 800px X 600px so that sie got reduce while uploading in asp.net ....
View 1 RepliesIs there such a thing as an optimum chunk size for processing large files? I have an upload service (WCF) which is used to accept file uploads ranging from several hundred megabytes.
I've experimented with 4KB, 8KB through to 1MB chunk sizes. Bigger chunk sizes is good for performance (faster processing) but it comes at the cost of memory.
So, is there way to work out the optimum chunk size at the moment of uploading files. How would one go about doing such calculations? Would it be a combination of available memory and the client, CPU and network bandwidth which determines the optimum size?
EDIT: Probably should mention that the client app will be in silverlight.
I've already searched to no avail for an answer to this question:is it possible to dynamically alter the page size in a paged gridview based on data in a particular column?In other words,let's say I get data from a table that lists students enrolled in a particular course.If there are 10 students in Course "A," then I want page 1 in my gridview to show 10 records.
If there are 15 students in Course "B," then I want page 2 in my gridview to show those 15 records,and so on.I imagine that this could probably be done with a master-detail kind of set up,but let's say for the sake of argument that I don't want to go that route.
I want to set specific width size of a column inside grid view i tryed following things butit did not work:
I tryed through css through C# and to set properties for gridview like itemstyle/itemcontrol width = 150px
I'm going to design a database for an image gallery in ASP.NET Web App . Because of some reasons I've decided to store the image in Data Base , Not the address .
In the application i need two or more different size and weight image for each image that the admin insert .For instance , One of them is small and lightweight thumbnail , and the other is Original big one .
My question is : Should i have two column ( one for lightweight and small thumbnail and one for big and full size one ) in DataBase Or Is there any way i could load different size and wight image from Big and original image column ?
While updating table Un handled exception was raised (asp.net with c# and SQLServer 2005)
Error Message: "Transaction (Process ID 91) was deadlocked on lock | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction."
I want to generate 30,000 cards and each card must be duplicate check with database. In my card, there are 2 things. Serial No and CardID. If any card already exists then I generate another card id but with the same serial no.
So how faster way I can generate 30,000 card with duplicate check? Which one I have made application, it takes about 25 minutes to insert.
What problems might I encounter by using the HttpCache to buffer data from a web service, as opposed to storing the same data in a database table? In a hypothetical situation whereby the service was temporarily unavailable, if the server needed to reboot during that time there would be no way to re-populate the cache. So for that reason, is it possible to persist the cache like you could do with SqlServer Session state?
I read the HttpCache is implemented using the Singleton pattern. Does that mean I should be using Mutex when working with objects coming from the cache?
What will happen if the cache is being updated on the one hand by a separate threaded process while also being read by a different thread?
An user posts this article about how to use HttpResponse.Filter to compress large amounts of data. But what will happen if I try to transfer a 4G file? will it load the whole file in memory in order to compress it? or otherwise it will compress it chunk by chunk?
I mean, I'm doing this right now:
public void GetFile(HttpResponse response)
{
String fileName = "example.iso";
response.ClearHeaders();
response.ClearContent();
response.ContentType = "application/octet-stream";
[Code]....
So at the same time I'm reading, I'm compressing and sending it. Then I wanna know if HttpResponse.Filter do the same thing, or otherwise it will load the whole file in memory in order to compress it. Also, I'm a little bit insecure about this... maybe is needed to load the whole file in memory to compress it... is it?
i want to to sotre large amount of character in one field of a table i use text-nvarchar(max) and but it show me this exception
(String or binary data would be truncated The statement has been terminated.) I know that text and nvarchar can store 8000 character
I have a text file with tab as delimiter. There are about 20 fields in the text file and the file size is about 150MB-200MB.
I need to filter out each row in the textfile based on its field criteria, For Eg: the i should ignore the particular row if the Field A is empty.
I know that by reading out the text file row by row it will be certainly slow.
how to read out the text file fast and also how to do the file processing for the read out text file?
In my database when I fire query it takes 40 secs on 1 crore data, similar when I use join with other table then it take more time. I have taken care non cluster index such thing. But still I want to optimize my query, what other thing I need to take like buffer, disk size etc. I am not sure on this area.
View 11 RepliesI have an asmx web service I am "Upgrading" to WCF. It's function is to pass a DataTable to the Remote Server. It works fine as long as the dataset contains under 20 records(more or less). Anything greater than that returns the error:
The remote server returned an unexpected response: (400) Bad Request
Everything I searched on the web says I need to increase things like maxBufferSize in my Web.Config File, but like so many others, it has produced no results. This seems like it should be a simple fix.
I am using VS 2010 on Windows 7. All Development and debugging is being done on the localhost. What I currently have for my web.Config file is below:
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My admin set innodb_buffer_pool_size=512M, innodb_log_file_size=128M, and innodb_log_buffer_size=1M although in mysql query show global variables its showing what the value is set. When i restart my system also its showing what we set the data.(It means we set log file buffer file size to max and its working fine.) but when i try to upload a file of 58 mb again its throwing error as The size of BLOB/TEXT data inserted in one transaction is greater than 10% of redo log size.
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