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  • Dispatcher.BeginInvoke problems

    - by cmaduro
    I'm getting "An object reference is required for the non-static field, method, or property 'System.Windows.Threading.Dispatcher.BeginInvoke(System.Action)'" for this code. private void ResponseCompleted(IAsyncResult result) { HttpWebRequest request = result.AsyncState as HttpWebRequest; HttpWebResponse response = request.EndGetResponse(result) as HttpWebResponse; using (StreamReader sr = new StreamReader(response.GetResponseStream())) { Dispatcher.BeginInvoke( () => { try { XDocument resultsXml = XDocument.Load(sr); QueryCompleted(new QueryCompletedEventArgs(resultsXml)); } catch (XmlException e) { XDocument errorXml = new XDocument(new XElement("error", e.Message)); QueryCompleted(new QueryCompletedEventArgs(errorXml)); } }); } } }

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  • Replace text in Word Document via ASP.NET

    - by jreedinc
    How can I replace a string/word in a Word Document via ASP.NET? I just need to replace a couple words in the document, so I would like to stay AWAY from 3rd party plugins & interop. I would like to do this by opening the file and replacing the text. The following attempts were made: I created a StreamReader and Writer to read the file but I think that I am reading and writing in the wrong format. I think that Word Documents are stored in binary?? If word documents are binary, how would I read and write the file in binary? Dim template As String = Request.MapPath("documentName.doc") If File.Exists(template) Then Dim sr As New StreamReader(template) Dim content As String = sr.ReadToEnd() sr.Close() Dim sw As New StreamWriter(template) content = content.Replace("@ T O D A Y S D A T E", Date.Now.ToString("MM/dd/yyyy")) sw.Write(content) sw.Close() Else

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  • get site source code as register user(c#)

    - by nir143
    hi. i downloaded a sourcecode of a site,but i downloaded it i saw it identify my program as a guest,i search at google and figure out that i can send a cookie when i "ask" the source code. that what i have managed to do and it still dont identify me as register user: CookieContainer cj = new; CookieContainer(); string all = ""; HttpWebRequest req = (HttpWebRequest)WebRequest.Create(Url); req.CookieContainer = cj; HttpWebResponse res = (HttpWebResponse)req.GetResponse(); CookieCollection cs=cj.GetCookies(req.RequestUri); CookieContainer cc = new CookieContainer(); cc.Add(cs); req.CookieContainer = cc; StreamReader read = new StreamReader(res.GetResponseStream()); all = read.ReadToEnd(); read.Close(); return all; what is wrong here? tyvm for help:)

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  • [ASP.NET] Odd HttpRequest behaviour

    - by barguast
    I have a web service which runs with a HttpHandler class. In this class, I inspect the request stream for form / query string parameters. In some circumstances, it seemed as though these parameters weren't getting through. After a bit of digging around, I came across some behaviour I don't quite understand. See below: // The request contains 'a=1&b=2&c=3' // TEST ONLY: Read the entire request string contents; using (StreamReader sr = new StreamReader(context.Request.InputStream)) { contents = sr.ReadToEnd(); } // Here 'contents' is usually correct - containing 'a=1&b=2&c=3'. Sometimes it is empty. string a = context.Request["a"]; // Here, a = null, regardless of whether the 'contents' variable above is correct Can anyone explain to me why this might be happening? I'm using a .NET WebClient and UploadDataAsync to perform the request on the client if that makes any difference. If you need any more information, please let me know.

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  • Hi, I want to create new DOCX file by reading DOCX template (it's content is already replaced)

    - by ruwan Kumara
    Up to now code is read the template and replace with new values and finally replace the docx file with new values. Can any one please tell me how to save the replaced docx file in diffrent name?. My code is bellow. using (WordprocessingDocument wordDoc = WordprocessingDocument.Open(document, true)) { string docText = null; using (StreamReader sr = new StreamReader(wordDoc.MainDocumentPart.GetStream())) { docText = sr.ReadToEnd(); } Regex regexText = new Regex("#ApplicationCompleteDate#"); docText = regexText.Replace(docText,DataHolding.ApplicationCompleteDate); regexText = new Regex("#ApplicantPrivateAddress#"); docText = regexText.Replace (docText,UserDataHolding.ApplicantPrivateAddress); using (StreamWriter sw = new StreamWriter(wordDoc.MainDocumentPart.GetStream (FileMode.Create))) { sw.Write(docText); } } If any one help me with this creating new docx file by changing above code, it will be very helpful for me. thank You.

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  • Using generics with XmlSerializer

    - by MainMa
    Hi, When using XML serialization in C#, I use code like this: public MyObject LoadData() { XmlSerializer xmlSerializer = new XmlSerializer(typeof(MyObject)); using (TextReader reader = new StreamReader(settingsFileName)) { return (MyObject)xmlSerializer.Deserialize(reader); } } (and similar code for deserialization). It requires casting and is not really nice. Is there a way, directly in .NET Framework, to use generics with serialization? That is to say to write something like: public MyObject LoadData() { // Generics here. XmlSerializer<MyObject> xmlSerializer = new XmlSerializer(); using (TextReader reader = new StreamReader(settingsFileName)) { // No casts nevermore. return xmlSerializer.Deserialize(reader); } }

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  • Is there a better way than this to find out if an IsolatedStorage file exists or not?

    - by Edward Tanguay
    I'm using IsolatedStorage in a Silverlight application for caching, so I need to know if the file exists or not which I do with the following method. I couldn't find a FileExists method for IsolatedStorage so I'm just catching the exception, but it seems to be a quite general exception, I'm concerned it will catch more than if the file doesn't exist. Is there a better way to find out if a file exists in IsolatedStorage than this: public static string LoadTextFromIsolatedStorageFile(string fileName) { string text = String.Empty; using (IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication()) { try { using (IsolatedStorageFileStream isfs = new IsolatedStorageFileStream(fileName, FileMode.Open, isf)) { using (StreamReader sr = new StreamReader(isfs)) { string lineOfData = String.Empty; while ((lineOfData = sr.ReadLine()) != null) text += lineOfData; } } return text; } catch (IsolatedStorageException ex) { return ""; } } }

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  • C# Find and Replace RegEx question

    - by fraXis
    Hello, I am starting to get a grip on RegEx thanks to all the great help here on SO with my other questions. But I am still suck on this one: My code is: StreamReader reader = new StreamReader(fDialog.FileName.ToString()); string content = reader.ReadToEnd(); reader.Close(); I am reading in a text file and I want to search for this text and change it (the X and Y value always follow each other in my text file): X17.8Y-1. But this text can also be X16.1Y2.3 (the values will always be different after X and Y) I want to change it to this X17.8Y-1.G54 or X(value)Y(value)G54 My RegEx statement follows but it is not working. content = Regex.Replace(content, @"(X(?:\d*\.)?\d+)*(Y(?:\d*\.)?\d+)", "$1$2G54"); Can someone please modify it for me so it works and will search for X(wildcard) Y(Wildcard) and replace it with X(value)Y(value)G54? Thanks, Shawn

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  • Populating PDF fields in .NET without a API, such as iTextSharp

    - by Kristjan Oddsson
    class mineTest { string pdfTemplate = @"c:\us.pdf"; public mineTest(Customer c, string output) { StreamReader sr = new StreamReader(pdfTemplate); StreamWriter sw = new StreamWriter(output); string content = sr.ReadToEnd(); content.Replace("(Customer name)/DA(/Verdana 10 Tf 0 g)/FT/Tx/Type/Annot/MK<<>>/V()/AP<</N 13 0 R>>>>", "(Customer name)/DA(/Verdana 10 Tf 0 g)/FT/Tx/Type/Annot/MK<<>>/V(John Johnson)/AP<</N 13 0 R>>>>"); sw.Write(content); sw.Close(); sr.Close(); } } Why does the above code fail at producing a valid PDF?

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  • Find and Replace RegEx question

    - by fraXis
    I am starting to get a grip on RegEx thanks to all the great help here on SO with my other questions. But I am still suck on this one: My code is: StreamReader reader = new StreamReader(fDialog.FileName.ToString()); string content = reader.ReadToEnd(); reader.Close(); I am reading in a text file and I want to search for this text and change it (the X and Y value always follow each other in my text file): X17.8Y-1. But this text can also be X16.1Y2.3 (the values will always be different after X and Y) I want to change it to this X17.8Y-1.G54 or X(value)Y(value)G54 My RegEx statement follows but it is not working. content = Regex.Replace(content, @"(X(?:\d*\.)?\d+)*(Y(?:\d*\.)?\d+)", "$1$2G54"); Can someone please modify it for me so it works and will search for X(wildcard) Y(Wildcard) and replace it with X(value)Y(value)G54?

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  • How GC collects resources in a static member in C#?

    - by carter-boater
    Dear all, I have a piece of code like this: Class Program { static StreamReader sr = null; static int var=0; static Program() { sr = new StreamReader("input.txt") } ~Program() { sr.Dispose(); } static void main(string args[]) { //do something with input here } } This may not be a good practice, but I just want to use this example to ask how the deconstructor and GC works. My question is: Will ~Program() get called at a non-determined time or it won't be called at all in this case. If the deconstructor won't get called, then how GC collect the unmanaged resources and managed resources. Thank you very much!

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  • WCF web service Data Members defaulting to null

    - by James
    I am new to WCF and created a simple REST service to accept an order object (series of strings from XML file), insert that data into a database, and then return an order object that contains the results. To test the service I created a small web project and send over a stream created from an xml doc. The problem is that even though all of the items in the xml doc get placed into the stream, the service is nullifying some of them when it receives the data. For example lineItemId will have a value but shipment status will show null. I step through the xml creation and verify that all the values are being sent. However, if I clear the datamembers and change the names around, it can work. Any help would be appreciated. This is the interface code [ServiceContract] public interface IShipping { [OperationContract] [WebInvoke(Method = "POST", UriTemplate = "/Orders/UpdateOrderStatus/", BodyStyle=WebMessageBodyStyle.Bare)] ReturnOrder UpdateOrderStatus(Order order); } [DataContract] public class Order { [DataMember] public string lineItemId { get; set; } [DataMember] public string shipmentStatus { get; set; } [DataMember] public string trackingNumber { get; set; } [DataMember] public string shipmentDate { get; set; } [DataMember] public string delvryMethod { get; set; } [DataMember] public string shipmentCarrier { get; set; } } [DataContract] public class ReturnOrder { [DataMember(Name = "Result")] public string Result { get; set; } } This is what I'm using to send over an Order object: string lineId = txtLineItem.Text.Trim(); string status = txtDeliveryStatus.Text.Trim(); string TrackingNumber = "1x22-z4r32"; string theMethod = "Ground"; string carrier = "UPS"; string ShipmentDate = "04/27/2010"; XNamespace nsOrders = "http://tempuri.org/order"; XElement myDoc = new XElement(nsOrders + "Order", new XElement(nsOrders + "lineItemId", lineId), new XElement(nsOrders + "shipmentStatus", status), new XElement(nsOrders + "trackingNumber", TrackingNumber), new XElement(nsOrders + "delvryMethod", theMethod), new XElement(nsOrders + "shipmentCarrier", carrier), new XElement(nsOrders + "shipmentDate", ShipmentDate) ); HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://localhost:3587/Deposco.svc/wms/Orders/UpdateOrderStatus/"); request.Method = "POST"; request.ContentType = "application/xml"; try { request.ContentLength = myDoc.ToString().Length; StreamWriter sw = new StreamWriter(request.GetRequestStream()); sw.Write(myDoc); sw.Close(); using (HttpWebResponse response = (HttpWebResponse)request.GetResponse()) { StreamReader reader = new StreamReader(response.GetResponseStream()); string responseString = reader.ReadToEnd(); XDocument.Parse(responseString).Save(@"c:\DeposcoSvcWCF.xml"); } } catch (WebException wEx) { Stream errorStream = ((HttpWebResponse)wEx.Response).GetResponseStream(); string errorMsg = new StreamReader(errorStream).ReadToEnd(); }

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  • How to retrieve a binary file from .NET assembly?

    - by Rahul Soni
    I have an excel file that I want to embed in my C# assembly. I have changed the build action of the XLSX file to "Embedded Resource". During runtime, I have to retrieve this XLSX file from the assembly. Assembly assembly = Assembly.GetExecutingAssembly(); StreamReader sr = new StreamReader(assembly.GetManifestResourceStream("AssemblyName.Output.xlsx"), true); StreamWriter sw = new StreamWriter(strPath); sw.Write(sr.ReadToEnd()); sr.Dispose(); sw.Dispose(); System.Diagnostics.Process.Start(strPath); As expected, this fails for the XLSX file since it is a binary data. This could works well with a text file. I tried binary read/write, but I am not able to get the code running. Thoughts?

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  • Memory Efficient file append

    - by lboregard
    i have several files whose content need to be merged into a single file. i have the following code that does this ... but it seems rather inefficient in terms of memory usage ... would you suggest a better way to do it ? the Util.MoveFile function simply accounts for moving files across volumes private void Compose(string[] files) { string inFile = ""; string outFile = "c:\final.txt"; using (FileStream fsOut = new FileStream(outFile + ".tmp", FileMode.Create)) { foreach (string inFile in files) { if (!File.Exists(inFile)) { continue; } byte[] bytes; using (FileStream fsIn = new FileStream(inFile, FileMode.Open)) { bytes = new byte[fsIn.Length]; fsIn.Read(bytes, 0, bytes.Length); } //using (StreamReader sr = new StreamReader(inFile)) //{ // text = sr.ReadToEnd(); //} // write the segment to final file fsOut.Write(bytes, 0, bytes.Length); File.Delete(inFile); } } Util.MoveFile(outFile + ".tmp", outFile); }

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  • How to convert *.aspx (HTML) page to Image format

    - by Swapnil Fegade
    I want to convert *.aspx (HTML) page's (User Interface) to Image such as JPEG. I am using below code for that Protected Sub btnGet_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnGet.Click saveURLToImage("http://google.co.in") End Sub Private Sub saveURLToImage(ByVal url As String) If Not String.IsNullOrEmpty(url) Then Dim content As String = "" Dim webRequest__1 As System.Net.WebRequest = WebRequest.Create(url) Dim webResponse As System.Net.WebResponse = webRequest__1.GetResponse() Dim sr As System.IO.StreamReader = New StreamReader(webResponse.GetResponseStream(), System.Text.Encoding.GetEncoding("UTF-8")) content = sr.ReadToEnd() 'save to file Dim b As Byte() = Convert.FromBase64String(content) Dim ms As New System.IO.MemoryStream(b, 0, b.Length) Dim img As System.Drawing.Image = System.Drawing.Image.FromStream(ms) img.Save("c:\pic.jpg", System.Drawing.Imaging.ImageFormat.Jpeg) img.Dispose() ms.Close() End If End Sub But I am getting Error as "Invalid character in a Base-64 string" at line Dim b As Byte() = Convert.FromBase64String(content)

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  • How to receive userinfo with google adwords api libraries

    - by PatrickvKleef
    I'm using the Google Adwords API libraries and I would like to receive the userinfo of the logged in user. I added the userinfo scope as followed: googleAdwordsUser = new AdWordsUser(); string oauth_callback_url = HttpContext.Current.Request.Url.GetLeftPart(UriPartial.Path); googleAdwordsUser.OAuthProvider = new AdsOAuthNetProvider("https://adwords-sandbox.google.com/api/adwords/ https://www.googleapis.com/auth/userinfo.email", oauth_callback_url, Session.SessionID); When the callback url is called, I'm trying to get the users emailaddress, but it isn't working, the error 'The remote server returned an error: (401) Unauthorized.' is thrown. string url = @"https://www.googleapis.com/oauth2/v2/userinfo?access_token=" + token; HttpWebRequest objRequest = (HttpWebRequest)WebRequest.Create(url); objRequest.Method = "GET"; HttpWebResponse objResponse = (HttpWebResponse)objRequest.GetResponse(); string result = string.Empty; using (StreamReader sr = new StreamReader(objResponse.GetResponseStream())) { result = sr.ReadToEnd(); } Does somebody knows how to fix this? Thanks.

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  • Program skips code after trying to parse XML in VB.NET

    - by Bead
    I'm trying to parse some XML (html) I downloaded using WebRequest.Create() and then read it. However after loading the XML file using LoadXml(string), anything else I execute doesn't work. Setting a breakpoint on anything afterwards doesn't work and it doesn't break. I tried catching exception but none are occurring, so I'm not sure what the problem is. Here is my code: Dim reader As StreamReader = New StreamReader(HTTPResponse.GetResponseStream()) Dim xDoc As XmlDocument = New XmlDocument() xDoc.LoadXml(reader.ReadToEnd()) Dim omfg As String = xDoc.ChildNodes().Item(0).InnerText() Dim name As XmlNodeList = xDoc.GetElementsByTagName("div") Dim jj As Integer = name.Count For i As Integer = 0 To name.Count - 1 MessageBox.Show(name.Item(i).InnerText) Next i Anything after the "xDoc.LoadXml(reader.ReadToEnd())" doesn't execute.. Any ideas on this? My XML does have some whitespace at the beginning, I don't know if that is causing the problem...

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  • SHA1 form .exe file in C#

    - by alibipl
    Hi! I hope that someone could help me with reading exe files in C# and create a SHA1 hash from it. I have tried to read from executable file using StreamReader and BinaryReader. Then using built-in SHA1 algorithm I tried to create a hash but without success. The algorithm results for StreamReader was "AEUj+Ppo5QdHoeboidah3P65N3s=" and for BinaryReader was "rWXzn/CoLLPBWqMCE4qcE3XmUKw=". Can anyone help me to acheive SHA1 hash from exe file? Thx. BTW Sorry for my English ;)

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  • StremReader.ReadToEnd() returning an empty string

    - by axk
    I have a method private static String DecompressAndDecode(byte[] data) { GZipStream decompressor = new GZipStream(new MemoryStream(data), CompressionMode.Decompress); StreamReader decompressed = new StreamReader(decompressor, Encoding.UTF8); String result = decompressed.ReadToEnd(); return result; } I have some GZipped text as input and the result is supposed to be a String representation of this text. The problem is that the method returns an empty string. What is puzzling me is that when I step trough the method in debug mode and reach the return statement the result variable is an empty string but if I create a watch for the decompressed.ReadToEnd() expression it returns me the text. What I would expect at this point is the result variable to contain the text and the decompressed.ReadToEnd() expression evaluating to an empty string. (Reevaluating the decompressed.ReadToEnd() expression returns an empty string as expected). There must be something obvious I'm missing here.

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  • Passing Byte (VB.NET)

    - by yae
    Hi I need to pass encoded string to php page. To convert string to iso: Dim result As Byte() = Encoding.Convert(Encoding.UTF8, Encoding.GetEncoding("iso-8859-1"), input) I have this code to pass string, but how I must do it to pass Byte (variable result) instead of the string (variable MyVarString)? Dim client As WebClient Dim data As Stream Dim reader As StreamReader Dim baseurl As String baseurl = "http://example.com/api/mypage2.php" client = New WebClient client.Headers.Add("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705;)") client.QueryString.Add("mensaje", MyVarString) data = client.OpenRead(baseurl) reader = New StreamReader(data) s = reader.ReadToEnd() data.Close() reader.Close() Etc.

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  • Using Api to submit userdata to external party

    - by Younes
    I have to submit subscription data to another website. I have got documentation on how to use this API however i'm not 100% sure of how to set this up. I do have all the information needed, like username / passwords etc. This is the API documentation: https://www.apiemail.net/api/documentation/?SID=4 How would my request / post / whatever look like in C# .net (vs 2008) when i'm trying to acces this API? This is what i have now, I think i'm not on the right track: public static string GArequestResponseHelper(string url, string token, string username, string password) { HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(url); myRequest.Headers.Add("Username: " + username); myRequest.Headers.Add("Password: " + password); HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse(); Stream responseBody = myResponse.GetResponseStream(); Encoding encode = System.Text.Encoding.GetEncoding("utf-8"); StreamReader readStream = new StreamReader(responseBody, encode); //return string itself (easier to work with) return readStream.ReadToEnd();

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  • C# Thread issues

    - by Mike
    What I have going on is a listview being dynamically created from a previous button click. Then ti starts a background worker in which should clear out the listview and populate the iistview with new information every 30 seconds. I continously get: Cross-thread operation not valid: Control 'listView2' accessed from a thread other than the thread it was created on. private void watcherprocess1Updatelist() { listView2.Items.Clear(); string betaFilePath1 = @"C:\Alpha\watch1\watch1config.txt"; using (FileStream fs = new FileStream(betaFilePath1, FileMode.Open)) using (StreamReader rdr = new StreamReader((fs))) { while (!rdr.EndOfStream) { string[] betaFileLine = rdr.ReadLine().Split(','); using (WebClient webClient = new WebClient()) { string urlstatelevel = betaFileLine[0]; string html = webClient.DownloadString(urlstatelevel); File.AppendAllText(@"C:\Alpha\watch1\specificconfig.txt", html); } } }

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  • Need file read in from form load

    - by Luke
    I am using a listview, and trying to populate using a file. I need the file to be read in as soon as the form starts. private void mainForm_Load(object sender, EventArgs e) { //get file read in if (File.Exists("../../MealDeliveries.txt")) { StreamReader sr = new StreamReader("../../MealDeliveries.txt"); //first line is delivery name string strDeliveryName = sr.ReadLine(); do { //other lines Delivery d = new Delivery(strDeliveryName, sr.ReadLine(), sr.ReadLine(), sr.ReadLine(), sr.ReadLine(), sr.ReadLine(), sr.ReadLine()); mainForm.myDeliveries.Add(d); //check for further values strDeliveryName = sr.ReadLine(); //stop if no more values } while (strDeliveryName != null); displayDeliveries(); } } Should this work?

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  • creating a file from input stream

    - by daemonkid
    My component will receive a pdf file as a filestream from which I will need to create a file. For testing purposes I am trying to read a file using the filestream object and recreate it at a different location. But the recreated file is created blank. the recreated file has the same number of pages though... This is the code StreamReader sr = new StreamReader(_filePath); str = sr.ReadToEnd(); File.WriteAllText(@"C:\recreated.pdf", str); what am I doing wrong?

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  • Referencing View directory in asp.net mvc

    - by ooo
    i have some html files as part of a regular website that has been ported over to asp.net mvc. In my code i need to read and write these html files and stick them in a tinymce editor To be able to read and write this file from disk in the past i had a hard coded path but this doesn't seem to work in asp.net mvc unless i do something like this: Writing: string _urlDirectory = @"c:\hosting\MySite\Views\Members\newsletters\test.html"; System.IO.File.WriteAllText(_urlDirectory, htmlData_); Reading: string url = @"c:\hosting\MySite\Views\Members\newsletters\test.html"; var req = WebRequest.Create(url); var response = req.GetResponse(); StreamReader sr = new StreamReader(response.GetResponseStream()); string htmlData_ = sr.ReadToEnd(); i am moving my site from one data center to another and the directory structure is changing. instead of just changing the hard coded path to another hard coded path i wanted to see if there was a more relative way to reference these files.

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