Web Forms :: Download File Using Web Service WebMethod
Sep 3, 2013
Download pdf file using webmothed asp.net without error. Can't download file .. what error ..
[WebMethod] public static string usernamecheck(string name, string amount, string floder, string getfile) {
string path = "PrintPDF.pdf"; HttpContext.Current.Response.ContentType = "application/pdf"; HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment; filename=" + path);
// HttpContext.Current.Response.WriteFile(HttpContext.Current.Server.MapPath(path));
HttpContext.Current.Response.TransmitFile(HttpContext.Current.Server.MapPath(path));
//HttpContext.Current.Response.End();
return ""; }
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Similar Messages:
Aug 6, 2010
I am using the following code to export a datset to excel sheet.
[Code]....
Problem is that its not raising file download and hence no export is taking place.The same code works fine in a normal method.But with the webmethod its not working.
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Dec 31, 2010
I am trying to implement a service to download a image file. The code does nothing but upload a file to the response with each client request.
There are no SOAP messages involved but I am planning to implement it as ASP.NET web service. It can also be implement as ASP.NET website but since it has no view (forms, html etc) I planned to implement a web-service.
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Jan 18, 2011
I have a web service I put together that has a custom soap header for the authorization (UserName and Password).I have a function currently that will allow a user to download a file from my site via a web service.I have integrated this download to the membership system of the site.They are using a vb.net front end client to perform the download.The files I download are around a meg in size.I would like to show the download progess of the file.I was going to setup MTOM and download the file in chunks.I am trying to get around the authorization of each "chunk" of data that I am sending down to the client.I do not want to hit my authorization process for all of these calls to the web service with the file offset.The authorization header works well for other functions I have put together for this web service.
They set a username and password and then call a function for specific data that I am making available via the web service.Is there an easier method to stream a file to a user and show the download progress of the file?I was going to generate a token and have that token passed per chunk,but I still have to go through my security process.Can anyone assist in the proper design of a webservice to stream a file with progress and passing credientials.
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Apr 20, 2010
I am downloading the project from the webservice which contains the zip file embedded in the Soap XML.
I want to read or download the content present in the Zip file.
I am using C#.
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Sep 2, 2013
I need to download a .mp3 file from a folder. during download a new blank page should open and after downloading it should close automatically.
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Apr 29, 2010
How to Access Webservice Webmethod in Javascript
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Sep 24, 2010
<WebMethod(Description:="Tests the authentication of a given set of user credentials..")> _
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Jul 18, 2012
I tried your code for Autocomplete without Webservice and didn't work on my page. When I tried it on a new project it works fine but on my project it does not. I have other controls on the page but that shouldn't stop it from working right?
Attached is my code
<%@ Page Title="" Language="VB" MasterPageFile="~/intranet.master" AutoEventWireup="false" CodeFile="warehouse.aspx.vb" Inherits="warehouse" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
<asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" Runat="Server">
[CODE]...
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Jan 20, 2010
I can't seem to call a web service method from Ajax with both POST and GET.
Initially only the POST would work and GET would causes this error:
{"Message":"An attempt was made to call the method u0027getDatau0027 using a GET request, which is not allowed.","StackTrace":" at System.Web.Script.Services.RestHandler.GetRawParams(WebServiceMethodData methodData, HttpContext context)at System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext
context, WebServiceMethodData methodData)","ExceptionType":"System.InvalidOperationException"}
I fixed that by adding this attribute: [ScriptMethod(UseHttpGet=true)] but now GET causes this error:
[code]....
So is it true that you can only use either POST or GET and not both from Ajax?
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May 11, 2010
I have a custom class declared as follows (in vb.net)
<Serializable()> _
Public Class NumInfo
Public n As String
Public f As Integer
Public fc As char()
Public t As Integer
Public tc As char()
Private validFlag As Boolean = True
Public Sub New()
End Sub
I also have public properties(read/write) for all the public variables
End Class
In my service.asmx codebehind class I have a webmethod as follows:
<WebMethod> _
<XmlInclude(GetType(NumInfo))>
Public Function ConvertTo(ByVal info As NumInfo) As String
Return mbc(info)
'mbc is another function defined in my service.asmx "service" class
End Function
The problem is that when I start debugging it to test it, the page that I get does not contain any fields where I could input the values for the public fields of numInfo. How do I initialise the class? There is no "Invoke" button either. All I see are soap details as below:
ConvertTo
Test
The test form is only available for methods with primitive types as parameters. SOAP 1.1 The following is a sample SOAP 1.1 request and response. The placeholders shown need to be replaced with actual values.
POST /BaseConverter/BaseCon.asmx HTTP/1.1
Host: localhost
Content-Type: text/xml; charset=utf-8
Content-Length: length
SOAPAction: "http://RohitServices.in/ConvertTo"
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<ConvertTo xmlns="http://RohitServices.in/">
<info>
<n>string</n>
<f>int</f>
<fc>
<char>char</char>
<char>char</char>
</fc>
What am I doing wrong? For the record I tried replacing char() with string to see if it was the array causing problems but that didn't help either. I'm fairly new to web services. I tried replacing the custom object parameter with a primitive parameter just to check how things worked and it rendered a page with an input field and invoke button. I just can't seem to get it working with custom object.
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May 11, 2010
I have a custom class declared as follows (in vb.net)
<Serializable()> _ Public
Class NumInfo Public n As String
Public f As Integer Public fc As
char() Public t As Integer
[Code]....
What am I doing wrong? For the record I tried replacing char() with string to see if it was the array causing problems but that didn't help either. I'm fairly new to web services. I tried replacing the custom object parameter with a primitive parameter just to check how things worked and it rendered a page with an input field and invoke button.
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Jul 26, 2010
I am downloading file from database using the following code. This code downloads an excel file from the database which has a macro attached to it when it is opened. This macro reads file name of the excel file and uses it for its computation. Everthing works file if user saves the file on his harddisk and then open if but if he directly opens the file from the dialog(by hitting 'Open' button) then file name of the opened excel file comes out be the name of the webform that has the above code and this leads to error in the macro. Is there any option through which i can control the name of the file if user directly opens the file from dialog or the option to disable or remove 'Open' button form the dialog?
[Code]....
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Jan 4, 2010
i am using amazon s3 service. now i want to show download dialog box in my asp.net application when user come on download page. i am using amazon sdk.
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Oct 13, 2010
I'm about to submit my pad file to multiple sharware sites but the pad file has to have a direct link to the download file and can't link to a download page which is what I would like to do, so I can track the traffic and get the downloader's email before allowing the download. I am running an ASP.NET site in VB. Is there a way to tell the web app to redirect to a specific aspx page when it receives a request for a specific file?
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Jun 10, 2013
I have added linkbutton inside gridview to download, below is my code..
protected void lnkDownload_Click(object sender, EventArgs e)
{
try
{
[Code].....
its giving me following error
"Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack"
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Oct 18, 2010
Recently, I tried to get my Web Service class to inherit from a custom base class that inherits from System.Web.Services.WebMethod instead of the System.Web.Services.WebMethod directly.
However, I've been getting Error 500.
Public Class Service1
Inherits BaseClass
<System.Web.Services.WebMethod()> _
Public Function GetSessionID() As String
GetSessionID = Me.Session.SessionID
End Function
End Class
public class BaseClass
Inherits System.Web.Services.WebService
public property Property1 as string
public property Property2 as string
End Class
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Mar 26, 2011
This below code i have used in my aspx page for file download.
Response.AppendHeader("content-disposition", "attachment; filename="" + emailAttachment.FileName + "";");
Response.ContentType = "application/octet-stream";
Response.OutputStream.Write(emailAttachment.Data, 0, emailAttachment.Data.Length);
Response.End();
This block of code display Download file Dialog for Open or Save the attached file.It's working fine in Mozila Firefox and IE8 but doesn't display Download file Dialog box in IE 7
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Jan 14, 2013
I have made an application where I am displaying the .pdf , .doc , .docx files. These files are uploading from an Admin Panel.When user place a mouse pointer on download icon provided in front of every file, it shows the complete path where it’s get saved.I want to avoid this path visibility even when user place mouse on download icon and even if it Inspect an element (as most modern browser will have this functionality).
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Sep 13, 2010
I'm trying to force a large (200+ MB) file to download that's on a remote server. The problem is that I can't use the "WriteFile()" function, since I'm not using a virtual path. Then, when I try:
Response.AppendHeader("content-disposition",
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Jul 25, 2013
I need to retrieve and save a word document from a xml document ... I can retrieve name, phone number that and all .but i do no how download and save a word document from xml database .
<?xml version="1.0" encoding="utf-8"?>
<registeration>
<Date>
</Date>
<Name>
</Name>
<Qualification>
[Code] ....
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May 19, 2010
I have a service that works great on my development box. It uses JQuery to hit my web service, and then the JSON results are sent back.
The web service is located on our basePage.cs. We didn't want to put out an external WebService for this. Our on beta box something different is happening.
The web page seems to be trying to call the web method correctly - the JSON data is being sent... but the server doesn't seem to know it's a webmethod. here's my service function (it's in our basepage.cs which inherits from Page).
[Code]....
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Dec 10, 2010
i m creating asp.net Mobile website page to download symbian .sis file to mobile ,but its not geting download properly.its working perfectly on desktop.
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Dec 1, 2010
1.What is the use of writing method as webmethod in cs file
2.what is the use of calling webmethods through javascript file.
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Mar 23, 2011
I have some javascript that calls different web methods likeso
[Code]....
That's all fine & dandy but now i need to call a web method and pass it a file!
This is my current JS code
[Code]....
Now it jumps straight away to OnUploadFailed without ever going to the webmethod
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