C# :: Error While Performing Download File On MVC
Oct 31, 2014
// This is my actionlink on the index view
@Html.ActionLink("Download File", "Download", new { fileName = Model.OriginalRecordRelativeFilePath })
// This is my file download method at the controller file
public FileResult Download(string fileName)
[Code] ....
I want to get the file named path from C:DataIntergrationInterfacepath. I linked the path with file name. But i get this error System.IO.FileNotFoundException: Could not find file 'C:DataIntergrationInterfacepath when i click the actionlink.
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Jan 11, 2013
I'm trying to open a file and perform a regex on it, then print the matches, but I'm not sure if I have it right. I think I need to remove the line -
Code:
[for ( std::vector<TCHAR>::iterator It = buffer.begin();It != buffer.end(); It++ )
since I've already copied the file into the buffer, but how do I search the buffer?
Code:
std::ifstream in(TempFullPath, std::ios::in|std::ios::binary);
if( in.fail() )
{
std::cout << "File does not exist or could not open file";
}
[Code]....
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Nov 11, 2014
My Windows service may download a binary update in the background using WinHTTP APIs. I'm using code similar to the one from the bottom of this MSDN page. For ease of access I'll copy if below:
Code:
DWORD dwSize = 0;
DWORD dwDownloaded = 0;
LPSTR pszOutBuffer;
BOOL bResults = FALSE;
HINTERNET hSession = NULL,
hConnect = NULL,
hRequest = NULL;
[Code] ....
The issue I'm experiencing is that while downloading, the code above "hogs" most of the bandwidth available on the client computer. My goal is to make it "throttle" itself on a configurable "bps" level, say at 50 kbps and not use any more bandwidth.
Someone suggested measuring my current download speed (in bps) and depending on the value make the thread "sleep" before calling WinHttpReadData again.
So the formula I'd use to calculate BPS is this:
BPS = (BytesDownloaded * 1000 * 8) / TimePassedInMilliseconds;
Then to convert to Mbps:
Mbps = BPS / (1024 * 1024);
And the waiting/sleep would be done as such:
Code:
DWORD DesiredBitsPerSec = 50 * 1000;//for 50 kbps
if(fBps > DesiredBitsPerSec) {
DWORD dwW = (DWORD)((fBps - DesiredBitsPerSec) * 1000) / DesiredBitsPerSec;
if(dwW > 0)
::Sleep(dwW);//Sleep to throttle the download speed to the one we need
}
So I implemented it into the code above but it didn't work -- the Sleep API would produce very strange delays. So I decided to add a little bit more tracking code to actually be able to see what BPS values I'm getting.
I created a small test project that is attached to this post to illustrate the issue. (It's hard to explain without running an example.)
For a test I began downloading a large binary file (Windows 10 MSI, off Microsoft's server) and at the same time had the Task Manager open on a Performance tab that was showing me the current network throughput. I made a screenshot:
But as you can see, the reading on the test program and the actual network BPS values differ greatly.
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Apr 9, 2014
I am developing a program for a community launcher/downloader. What i am here to ask is there libraries to download a repo through an autoconfig file for downloading and updating the mod...
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Jul 20, 2014
how to download and install gcc compiler?
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Jul 11, 2014
Using the C # programming language LED controller through which controls the array is connected to the controller via the RJ45 port. I already know the basics, I mean specifics, ie
Using the instructions and DLL included with the hardware, I want to read data from it, but I can not deal with it.
Model controller is "C-Power5200" and dll is "CP5200.dll".
I would like to:-pick the data-display-edit and - save in the controller.
To read the data I am using the function
CP5200_Net_Read (BYTE * pBuf, int nSize);
and to save
CP5200_Net_Write (const BYTE * pBuf, int nLength);
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Feb 2, 2015
I want to build a program that can download youtube videos, but I don't know where to start.
I can obviously use IDM to download videos, but I want to learn what goes on in the backend so I can download them manually!
I currently know python, javacript, nodejs, can I use those languages?
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Mar 22, 2013
I want to create a program that lets you download torrents on linux ... how to start ...
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Dec 18, 2014
Basicly I want to make a c++ program which does the following:
1- logs in to 4shared.com with username 'user_example' and password 'password_example'.
2- uploads to the 4shared account a file named 'test_upload.txt' located in 'C: est'
3- downloads a file named 'test_download.txt' from the 4sared account
I user curl 7.39.0 and curlpp 0.7.3
1- how to keep the same session between successive http requests
2- how to make an http request to upload a file
3- how to get the url of a file with specified name on a 4shared account
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Nov 24, 2013
I have this code for a computer project... (store management) but the character strings are not copied on text file..
#include<iostream.h>
#include<conio.h>
#include<fstream.h>
class Store {
public:
char *item_name[5];
store()
[Code] .....
Now when i run the program, it gives a error :::
ERROR
address 0x0
How can i write these strings to the text file?
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Apr 12, 2014
I am working on an assignment in which i have to perform th following task
myClass itsObject1,itsObject2;
itsObject2=5000+itsObject1;
I have defined overloaded operator as follows in the header file but in the cpp file of the class it gives error.
friend vli &vli::operator + (int &a,vli &obj);
How to define it in cpp file of my class?
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Mar 27, 2015
I have a function in one src file called from code in a different src file.
In ig_cfunc.cpp
Code:
#include "ig_tools.h"
int x2_count = 0.0;
float rel_branch_degree_tmp = 0.0;
string type;
vector<int> is_disp_type;
[Code] ....
I am getting a linker error,
Code:
ig_cfunc.cpp:1609: error: `calc_rel_branch_degree' undeclared (first use this function)
I have deleted all of the objects and recompiled to make sure that everything is in sync. I can't see what the issue is here and I'm not sure what to do next. This code actually worked until I changed the name of the function, so the types are all correct and such. This is the format I use for all external functions ....
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Jul 10, 2013
Why I am getting an error (-1) when trying to write to a file. Here is the function - I did not include the rest of the code - not sure if I am leaving anything else out - I assumed it was a write permission issue?
Code:
#defineDATAFILE "/var/chance.data" //File to store userdata
voidregister_new_player() { int fd;
printf("-=-={New Player Registration } =-=-
");
printf("Enteryour name: ");
input_name();
[Code] .....
Result
Code:
user@ubuntu:~/examples$./game_of_chance
-=-={New Player Registration } =-=-
Enteryour name: test
[!!]Fatal Error in register_new_player() while opening file:Success
user@ubuntu:~/examples$
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Nov 11, 2014
I am writing an eVoting program the addTally function adds 1 to the Candidate's voting tally when called and prints it back to the file from where it took the input replacing the old text. Now, Why I am getting error when running this program. Whenever i comment out the output file in addTally Function including where its used, it works.
Vote Function
void Vote(vector<int> &id_list, ofstream &voter_list) {
int ID;
bool valid_id;
char choice;
cout << " **** Voting Menu ****
[code]....
Function Adds one to the tally
void addTally(char choice) {
ifstream inCandidate("Candidates.txt");
ofstream outCandidate("Candidates.txt");
string Data_Line;
vector <string> Candidates;
string C_name[5];
int Tally[5];
[code]....
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Sep 5, 2014
it isn't actually writing anything to the file. It is opening the employeesOut.txt file but not writing anything. I'm getting the error
libc++abi.dylib: terminating with uncaught exception of type std::invalid_argument: stoi: no conversion
(lldb)
I believe the error is within my main.cpp, so here that is, I have multiple classes.
#include <iostream>
#include <string>
#include <fstream>
#include "Employee.h"
using namespace std;
bool openFileForReading(ifstream& fin, const string& filename);
[code]....
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Jan 31, 2013
In c++ ., I am getting unable to get obj file error first time i compiled i got the output but during the 2nd time i got this error .....
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Sep 27, 2014
what can i do to fix ? why do i get the error ?
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Feb 6, 2013
I am working in Eclipse, and it keeps giving me this error that I do not understand. In the fillTable function, "is >> kP[i]" Eclipse says: no match for 'operator>>' in 'is >> *(((TranslationTable<int, std::string>*)this)->TranslationTable<int, std::string>::kP + (+(((unsigned int)i) * 8u)))'.
#ifndef TRANSLATIONTABLE_H_
#define TRANSLATIONTABLE_H_
#include "KeyValuePair.h"
#include <iostream>
#include <cstdlib>
[Code]....
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Jun 19, 2013
Here is my code i wrote for storing details of my apps.
#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
struct app {
int id;
char name[200];
[Code] ....
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Nov 8, 2014
ofstream infile;
infile.open("Input.txt");
if(infile.fail()) {
cout << "Error Opening File in Input" << endl;
system("pause");
exit(1);
}
So I'm trying to see if it fails, but if i change "Input" name would the computer just create a new file name of it for example if i change "Input" to "asdf" the computer is just going to create "asdf" how do i fix it.
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Apr 21, 2014
I have been working a while with saving and retrieve structs, and I still have not got it to work. I get Segmentation fault sh "${SHFILE} . I have search this error, and it has something to do with memory, but what, since I am a beginner with saving and retrieving files. The project runs fine, and the error stated above outputs into my console window as text.
Here are my two structs:
struct checkbook {
char id[50];
double value[50];
};
struct fbook {
[Code] ....
Here is how I save and retrieve my structs:
void saveCheckbook (string file, checkbook checkbook, double initial, int counter) {
string path = "C:UsersAshwinGoogle DriveC++Checkbook" + file;
fbook save;
save.counter = counter;
save.initial = initial;
save.book = checkbook;
[Code] ...
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Mar 21, 2013
I program unix sokcet programming , and part of my code is ti open file from server and open it , but i surprised with this wierd error i dont have any reason for it ?
Code:
#include <errno.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
[Code] ....
File name is : myHeader.h
myHeader.h:24:1: error: unknown type name "File"???
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Jan 31, 2014
I am trying to use struct to store variables from a text file and use them in the main program. I have first tried running the program without using struct and declaring the variables within the main program and it runs fine. But after using struct, it gives no compilation error and a segmentation fault as output. Also, if the size of file/variable size is unknown can I declare variables as char string[]??
The code is as below:
Code:
#include<stdio.h>
struct test {
char string1[10000];
[Code].....
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Dec 3, 2013
Code:
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int encrypt_data(FILE *);
[Code] ....
I am trying encrypt the file "encrypt" when I enter it I get "Error in reading file"
I think its a problem with the fgets() and scanf()...I tried both fgets out and then scanf but I get the same error.
I look in the directory and see that when I enter a file to be encrypted a blank file with a "?" at the end is created in the directory. so I try to encrypt "encrypt" it shows error then creates "encrypt?"
I then tested it by entering a random file name that does not exist
EXAMPLE
Please enter file to be encrypted: fakefilename
Error in reading file.
I look in the directory the non existent file now is listed "fakefilename"
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Sep 27, 2014
called object 'fptr_in' is not a function or function pointer
called object 'fptr_out' is not a function or function pointer
what can i do for the errors?(i mustn't use loop and arrays for the code)
Code:
#include <stdio.h>
void sum_of_2nd_and_3nd( FILE* fptr_in, FILE* fptr_out);
int main()
return 0;
}
void sum_of_2nd_and_3nd( FILE* fptr_in, FILE* fptr_out){
}
[code].....
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Mar 21, 2013
I am using OpenCASCADE environment to read STL file! I face a problem, with forward declaration error with the following
void StlReadIn::STL_Import() {
std::string FileName;
std::cout<<"
Enter the file name
";
std::cin>>FileName;
[Code] .....
Error message:
stlreadin.cpp:26:47: error: invalid use of incomplete type ‘struct StlMesh_Mesh’
/usr/local/oce-0.9.1/include/oce/Handle_StlMesh_Mesh.hxx:23:7: error: forward declaration of ‘struct StlMesh_Mesh’
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