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  • Better way to summarize data about stop times?

    - by Vimvq1987
    This question is close to this: http://stackoverflow.com/questions/2947963/find-the-period-of-over-speed Here's my table: Longtitude Latitude Velocity Time 102 401 40 2010-06-01 10:22:34.000 103 403 50 2010-06-01 10:40:00.000 104 405 0 2010-06-01 11:00:03.000 104 405 0 2010-06-01 11:10:05.000 105 406 35 2010-06-01 11:15:30.000 106 403 60 2010-06-01 11:20:00.000 108 404 70 2010-06-01 11:30:05.000 109 405 0 2010-06-01 11:35:00.000 109 405 0 2010-06-01 11:40:00.000 105 407 40 2010-06-01 11:50:00.000 104 406 30 2010-06-01 12:00:00.000 101 409 50 2010-06-01 12:05:30.000 104 405 0 2010-06-01 11:05:30.000 I want to summarize times when vehicle had stopped (velocity = 0), include: it had stopped since "when" to "when" in how much minutes, how many times it stopped and how much time it stopped. I wrote this query to do it: select longtitude, latitude, MIN(time), MAX(time), DATEDIFF(minute, MIN(Time), MAX(time)) as Timespan from table_1 where velocity = 0 group by longtitude,latitude select DATEDIFF(minute, MIN(Time), MAX(time)) as minute into #temp3 from table_1 where velocity = 0 group by longtitude,latitude select COUNT(*) as [number]from #temp select SUM(minute) as [totaltime] from #temp3 drop table #temp This query return: longtitude latitude (No column name) (No column name) Timespan 104 405 2010-06-01 11:00:03.000 2010-06-01 11:10:05.000 10 109 405 2010-06-01 11:35:00.000 2010-06-01 11:40:00.000 5 number 2 totaltime 15 You can see, it works fine, but I really don't like the #temp table. Is there anyway to query this without use a temp table? Thank you.

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  • Unable to pass variable data

    - by JM4
    I am trying to use the following code to pass information to another site but it keeps giving me an error: Invalid Code: $a = $b->doIt("James",$_SESSION['JNum'],"Frank"); Valid Sample Code: $a = $b->doIt("James","123456","Frank"); In the first example, the page returns "number field is required". The second piece of sample code returns valid results. Do to the nature of this project though I need to pass the id number as they are stored in SESSION variables. What am I missing?

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  • Hierarchical data table for JSF2 and RichFaces

    - by Iravanchi
    I'm using RichFaces on my JSF2 application, and I need a way to have something like a tree-column or tree-table. As far as I know, there's no support for such thing in RichFaces. Something's mentioned for RichFaces 4.0, but the priority of this in their plan isn't promising at all, and I don't think that it's going to be included in 4.0. I know there's a tree table available in IceFaces, but I'd rather not add another library to avoid conflicts and learning curve and ... So, I'm looking for the simplest way that I can achieve the same results with minimum efforts, maybe using sub-tables in RichFaces? Any ideas would be appreciated.

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  • How to get Joomla users data into a json array

    - by sami
    $sql = "SELECT * FROM `jos_users` LIMIT 0, 30 "; $response = array(); $posts = array(); $result=mysql_query($sql); while($row=mysql_fetch_array($result)) { $id=$row['id']; $id=$row['name']; $posts[] = array('id'=> $title, 'name'=> $name); } $response['jos_users'] = $posts; $fp = fopen('results.json', 'w'); fwrite($fp, json_encode($response)); fclose($fp); I want to fetch the user id and name to the json file.i thought id did wrong code.can anyone correct it ?

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  • Find order of data inside an array

    - by user271619
    I have a simple array of stuff: $array = array("apples","oranges","strawberries"); I am trying to find the order of the stuff inside the array. (sometimes the order changes, and so do the items) I'm expecting to get something like this: "apples" = 0, "oranges = 1, "strawberries = 2 The end result has something to do with database sorting. Something like this, inside a foreach loop: UPDATE tbl SET sortorder = $neworder WHERE fruit = '$fruitname' The $neworder variable would be populated with the new order, inside the array. While the $fruit variable comes from the item inside the array.

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  • How can I create XSD files from M documents?

    - by Andrew Matthews
    Does anyone know of a nice way to: produce XSD documents from an OSLO model consume conformant XML documents using that model and add directly into the DB created from the model? I can't see any obvious way from the current documentation, but I'm a newcomer, so I may have missed something. Thanks.

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  • Data bind enum properties to grid and display description

    - by TrueWill
    This is a similar question to How to bind a custom Enum description to a DataGrid, but in my case I have multiple properties. public enum ExpectationResult { [Description("-")] NoExpectation, [Description("Passed")] Pass, [Description("FAILED")] Fail } public class TestResult { public string TestDescription { get; set; } public ExpectationResult RequiredExpectationResult { get; set; } public ExpectationResult NonRequiredExpectationResult { get; set; } } I'm binding a BindingList<TestResult> to a WinForms DataGridView (actually a DevExpress.XtraGrid.GridControl, but a generic solution would be more widely applicable). I want the descriptions to appear rather than the enum names. How can I accomplish this? (There are no constraints on the class/enum/attributes; I can change them at will.)

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  • IIS 7 Can't read data from ASP.Net application services tables

    - by vikp
    Hi, I'm working on deploying a web application written in C# with ASP.Net Application services databases. The application runs fine on the development machine. Windows Server 2003 has been built to test the application. The database has been scripted across using MS SQL Server GUI. ASP.Net application services tables were created using an utility. The connection strings are stored in the web.config and connectionStrings.config. The application connects to the database successfully, but then it times out after 10 seconds.

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  • Passing Data of WebView to Another Activity

    - by meygraph
    I've designed a training program and Html texts and image put into training. I want to address my html file by an activity to sent another activity. This is MainActivity /* * ListView item click listener. So we'll have the do stuff on click of * our ListItem */ listViewArticles.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView<?> parent, View view, int position, long id) { switch (position) { case 0: Intent newActivity0 = new Intent(TrickPage.this,a_Dotted_Lines.class); startActivity(newActivity0); break; case 1: Intent newActivity1 = new Intent(TrickPage.this,TutorialsPage.class); startActivity(newActivity1); break; case 2: Intent newActivity2 = new Intent(TrickPage.this,TutorialsPage.class); startActivity(newActivity2); break; case 3: Intent newActivity3 = new Intent(TrickPage.this,TutorialsPage.class); startActivity(newActivity3); break; default: // Nothing do! } and this SecondActivity (show WebView) public class a_Dotted_Lines extends Activity { private WebView webView; @SuppressLint("SetJavaScriptEnabled") @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.a_dotted_lines); // Button HOME ImageButton ImageButton_home = (ImageButton) findViewById(R.id.ImageButton_home); ImageButton_home.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(); intent.setClass(a_Dotted_Lines.this, Main.class); startActivity(intent); overridePendingTransition(R.anim.fadein, R.anim.fadeout); } }); //Button Previous ImageButton ImageButton_previus = (ImageButton) findViewById(R.id.ImageButton_previus); ImageButton_previus.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { //Closing SecondScreen Activity finish(); } }); webView = (WebView) findViewById(R.id.webview_compontent); webView.getSettings().setJavaScriptEnabled(true); webView.loadUrl("file:///android_asset/html/article.htm"); } } I want Send "file:///android_asset/html/article.htm" or other addres from MainActivity Is it possible? Sorry My English is not good

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  • OPTICS Clustering algorithm. How to get the best epsilon

    - by Marco Galassi
    I am implementing a project which needs to cluster geographical points. OPTICS algorithm seems to be a very nice solution. It needs just 2 parameters as input(MinPts and Epsilon), which are, respectively, the minimum number of points needed to consider them as a cluster, and the distance value used to compare if two points are in can be placed in same cluster. My problem is that, due to the extreme variety of the points, I can't set a fixed epsilon. Just look at the image below. The same points structure but in a different scale would result very different. Suppose to set MinPts=2 and epsilon = 1Km. On the left, the algorithm would create 2 clusters(red and blue), but on the right it would create one single cluster containing all of the points(red), but I would like to obtain 2 clusters even on the right. So my question is: is there any kind of way to calculate dynamically the epsilon value to get this result? Thank you very much and excuse my for my poor english. Marco

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  • Silverlight 4 ComboBox - Binding to Nullable data (tried TargetNullValue but not working as expected)

    - by Laurence
    (Please note - I am a Silverlight beginner and am looking for the simplest solution here, e.g. that doesn't involve writing/installing a replacement for the ComboBox control!) This is an issue with a Silverlight 4 application that uses the View Model (MVVM) approach. I have a simple form for editing a "Product" object. Product has a CategoryID property which is nullable (int?). A ComboBox is used to view and set the CategoryID - this is bound to an ObservableCollection of Categories. Product also has number of non-nullable properties bound to TextBoxes. I want the user to see "N/A" in the ComboBox for a product with no category, and to be use this "N/A" option to set CategoryID to null. So, I manually added a Category object with CategoryID=0 and CategoryName="N/A" to the collection; then I set TargetNullValue=0 in the SelectedValue Binding of the ComboBox. My thinking was - when the ComboBox SelectedValue was bound to a null CategoryID it would substitute zero, and therefore select the "N/A" option. When editing a Product with a non-null CategoryID, everything works. However when a null CategoryID is found, two problems occur: No option is selected in the ComboBox (its blank) The ComboBox binding seems broken from this point onwards - any Product I subsequently edit (incl. ones with a non-null CategoryID) have nothing selected in the ComboBox (its still populated with all categories - just no selected item). I've seen reports of problem #2 (here, here) but I was under the impression that #1 should have worked. What am I missing to get the "N/A" option to be selected? XAML for ComboBox: <ComboBox x:Name="cboCategory" ItemsSource="{Binding colCategories, Mode=OneWay}" SelectedValuePath="CategoryID" DisplayMemberPath="CategoryName" SelectedValue="{Binding CurrentProduct.CategoryID, Mode=TwoWay, TargetNullValue=0}" Height="24" Width="344"></ComboBox>

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  • where should i encode this html data in an asp.net mvc site

    - by ooo
    here is my view code: <%=Model.HtmlData %> here is my controller code: public ActionResult GetPage() { ContentPageViewModel vm = new ContentPageViewModel(); vm.HtmlData = _htmlPageRepository.Get("key"); return View(vm); } my repository class basically queries a database table that has the fields: id, pageName, htmlContent the .Get() method passes in a pageName (or key) and returns the htmlContent value. Right now i have just started this (haven't persisted anything to the db yet) so i am not doing any explicit encoding in my code now. What is the best practice for where i need to do encoding (in the model, the controller, the view ??)

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  • Should a Trim method generally in the Data Access Layer or with in the Domain Layer?

    - by jpierson
    I'm dealing with a database that contains data with inconsistencies such as white leading and trailing white space. In general I see a lot of developers practice defensive coding by trimming almost all strings that come from the database that may have been entered by a user at some point. In my oppinoin it is better to do such formating before data is persisted so that it is done only once and then the data can be in a consistent and reliable state. Unfortunatley this is not the case however which leads me to the next best solution, using a Trim method. If I trim all data as part of my data access layer then I don't have to concern myself with defensive trimming within the business objects of my domain layer. If I instead put the trimming responsibility in my business objects, such as with set accessors of my C# properties, I should get the same net results however the trim will be operating on all values assigned to my business objects properties not just the ones that come from the inconsistent database. I guess as a somewhat philisophical question that may determine the answer I could ask "Should the domain later be responsible for defensive/coercive formatting of data?" Would it make sense to have a set accessor for a PhoneNumber property on a business object accept a unformatted or formatted string and then attempt to format it as required or should this responsibility be pushed to the presentation and data access layers leaving the domain layer more strict in the type of data that it will accept? I think this may be the more fundamental question. Update: Below are a few links that I thought I should share about the topic of data cleansing. Information service patterns, Part 3: Data cleansing pattern LINQ to SQL - Format a string before saving? How to trim values using Linq to Sql?

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  • how to handle result set data

    - by ashwani66476
    Hello All I am getting lacks of records in my Result Set. My concerns are : How Result Set handle these records internally? and How a programmer can handle those records in batches So that memory problem would not occur.? waiting for your answers .. Many Thanks

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  • How should my application keep clients in sync with schema changes to HTML5 databases?

    - by Chad Johnson
    I'm wanting to incorporate HTML5 database storage into my web application to make it online-accessible. I've done lots of development in server-side environments with databases, and we all know that database schema additions and modifications are often necessary. I am wondering what should happen if my application uses an offline database schema, and that schema changes. How do I prevent the application from breaking on the client side? How do I ensure the database is always up to date on the client end? Anyone have any solutions?

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  • Bind a list to silverlight datagrid/datafrom columns

    - by nilarya
    There must be something I am missing, I want to do a very simple thing, for example, I have a class like the following: public class Person { public int ID { get; set; } public string FirstName { get; set; } public string LastName { get; set; } public DateTime DateOfBirth { get; set; } public List<string> phoneNumbers { get; set; } } I want to bind it to a dataform by something like this: public Person person { get; set; } List<string> lst = new List<string>(); lst.Add("123445"); lst.Add("2345345"); lst.Add("4576345"); lst.Add("456784"); lst.Add("789067"); person = new Person() { ID = 1, FirstName = "Kevin", LastName = "Dockx", DateOfBirth = new DateTime(1981, 5, 5), Lookup = lst }; and then dataForm1.CurrentItem = person; What I am doing wrong?

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  • GZipStream in an WebHttpResponse producing no data

    - by Pierre 303
    I want to compress my HTTP Responses for client that supports it. Here is the code used to send a standard response: IHttpClientContext context = (IHttpClientContext)sender; IHttpRequest request = e.Request; string responseBody = "This is some random text"; IHttpResponse response = request.CreateResponse(context); using (StreamWriter writer = new StreamWriter(response.Body)) { writer.WriteLine(responseBody); writer.Flush(); response.Send(); } The code above works fine. Now I added gzip support below. When I test it with a browser that supports gzip or a custom method, it returns an empty string. I'm sure I'm missing something simple, but I just can't find it... IHttpClientContext context = (IHttpClientContext)sender; IHttpRequest request = e.Request; string acceptEncoding = request.Headers["Accept-Encoding"]; string responseBody = "This is some random text"; IHttpResponse response = request.CreateResponse(context); if (acceptEncoding != null && acceptEncoding.Contains("gzip")) { byte[] bytes = ASCIIEncoding.ASCII.GetBytes(responseBody); response.AddHeader("Content-Encoding", "gzip"); using (GZipStream writer = new GZipStream(response.Body, CompressionMode.Compress)) { writer.Write(bytes, 0, bytes.Length); writer.Flush(); response.Send(); } } else { using (StreamWriter writer = new StreamWriter(response.Body)) { writer.WriteLine(responseBody); writer.Flush(); response.Send(); } }

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  • How to model my database when using entity framework 4?

    - by Junior Ewing
    Trying to wrap my head around the best approach in modelling a database when we are using Entity Framework 4 as the ORM layer. We are going to use asp.net mvc 2 for the application. Is it worth trying to model using the class diagram modeller that comes with Visual Studio 2010 where you graphically configure your models into the EDMX file and then generate out the database structure? I have run into a bunch of non trivial issues and for complex many to many mappings or multi primary key entities the answer is not that obvious even after poking around a while with the tools. I figure its easy at this point to give up and start modelling the DB using real, working DB modelling tools and then try to generate out the EDMX from the database, rather than trying to do the model first approach.

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  • Asp.net mvc small amount data storage

    - by Trimack
    Hi there, I am writing some learning tests (i.e. what's the answer for...; choose correct options...). Now my question is, how should I store them. SQL db seems quite an overkill, but I really don't know what would be the best choice if I wanted to select random subset of questions etc. Perhaps some simple xml files? Thanks for advice.

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  • Data table columns become out of order after changing data source.

    - by Scott Chamberlain
    This is kind of a oddball problem so I will try to describe the best that I can. I have a DataGridView that shows a list of contracts and various pieces of information about them. There are three view modes: Contract Approval, Pre-Production, and Production. Each mode has it's own set of columns that need to be displayed. What I have been doing is I have three radio buttons one for each contract style. all of them fire their check changed on this function private void rbContracts_CheckedChanged(object sender, EventArgs e) { dgvContracts.Columns.Clear(); if (((RadioButton)sender).Checked == true) { if (sender == rbPreProduction) { dgvContracts.Columns.AddRange(searchSettings.GetPreProductionColumns()); this.contractsBindingSource.DataMember = "Preproduction"; this.preproductionTableAdapter.Fill(this.searchDialogDataSet.Preproduction); } else if (sender == rbProduction) { dgvContracts.Columns.AddRange(searchSettings.GetProductionColumns()); this.contractsBindingSource.DataMember = "Production"; this.productionTableAdapter.Fill(this.searchDialogDataSet.Production); } else if (sender == rbContracts) { dgvContracts.Columns.AddRange(searchSettings.GetContractsColumns()); this.contractsBindingSource.DataMember = "Contracts"; this.contractsTableAdapter.Fill(this.searchDialogDataSet.Contracts); } } } Here is the GetxxxColumns function public DataGridViewColumn[] GetPreProductionColumns() { this.dgvTxtPreAccount.Visible = DgvTxtPreAccountVisable; this.dgvTxtPreImpromedAccNum.Visible = DgvTxtPreImpromedAccNumVisable; this.dgvTxtPreCreateDate.Visible = DgvTxtPreCreateDateVisable; this.dgvTxtPreCurrentSoftware.Visible = DgvTxtPreCurrentSoftwareVisable; this.dgvTxtPreConversionRequired.Visible = DgvTxtPreConversionRequiredVisable; this.dgvTxtPreConversionLevel.Visible = DgvTxtPreConversionLevelVisable; this.dgvTxtPreProgrammer.Visible = DgvTxtPreProgrammerVisable; this.dgvCbxPreEdge.Visible = DgvCbxPreEdgeVisable; this.dgvCbxPreEducationRequired.Visible = DgvCbxPreEducationRequiredVisable; this.dgvTxtPreTargetMonth.Visible = DgvTxtPreTargetMonthVisable; this.dgvCbxPreEdgeDatesDate.Visible = DgvCbxPreEdgeDatesDateVisable; this.dgvTxtPreStartDate.Visible = DgvTxtPreStartDateVisable; this.dgvTxtPreUserName.Visible = DgvTxtPreUserNameVisable; this.dgvCbxPreProductionId.Visible = DgvCbxPreProductionIdVisable; return new System.Windows.Forms.DataGridViewColumn[] { this.dgvTxtPreAccount, this.dgvTxtPreImpromedAccNum, this.dgvTxtPreCreateDate, this.dgvTxtPreCurrentSoftware, this.dgvTxtPreConversionRequired, this.dgvTxtPreConversionLevel, this.dgvTxtPreProgrammer, this.dgvCbxPreEdge, this.dgvCbxPreEducationRequired, this.dgvTxtPreTargetMonth, this.dgvCbxPreEdgeDatesDate, this.dgvTxtPreStartDate, this.dgvTxtPreUserName, this.dgvCbxPreProductionId, this.dgvTxtCmnHold, this.dgvTxtCmnConcern, this.dgvTxtCmnAccuracyStatus, this.dgvTxtCmnEconomicStatus, this.dgvTxtCmnSoftwareStatus, this.dgvTxtCmnServiceStatus, this.dgvTxtCmnHardwareStatus, this.dgvTxtCmnAncillaryStatus, this.dgvTxtCmnFlowStatus, this.dgvTxtCmnImpromedAccountNum, this.dgvTxtCmnOpportunityId}; } public DataGridViewColumn[] GetProductionColumns() { this.dgvcTxtProAccount.Visible = DgvTxtProAccountVisable; this.dgvTxtProImpromedAccNum.Visible = DgvTxtProImpromedAccNumVisable; this.dgvTxtProCreateDate.Visible = DgvTxtProCreateDateVisable; this.dgvTxtProConvRequired.Visible = DgvTxtProConvRequiredVisable; this.dgvTxtProEdgeRequired.Visible = DgvTxtProEdgeRequiredVisable; this.dgvTxtProStartDate.Visible = DgvTxtProStartDateVisable; this.dgvTxtProHardwareRequired.Visible = DgvTxtProHardwareReqiredVisable; this.dgvTxtProStandardDate.Visible = DgvTxtProStandardDateVisable; this.dgvTxtProSystemScheduleDate.Visible = DgvTxtProSystemScheduleDateVisable; this.dgvTxtProHwSystemCompleteDate.Visible = DgvTxtProHwSystemCompleteDateVisable; this.dgvTxtProHardwareTechnician.Visible = DgvTxtProHardwareTechnicianVisable; return new System.Windows.Forms.DataGridViewColumn[] { this.dgvcTxtProAccount, this.dgvTxtProImpromedAccNum, this.dgvTxtProCreateDate, this.dgvTxtProConvRequired, this.dgvTxtProEdgeRequired, this.dgvTxtProStartDate, this.dgvTxtProHardwareRequired, this.dgvTxtProStandardDate, this.dgvTxtProSystemScheduleDate, this.dgvTxtProHwSystemCompleteDate, this.dgvTxtProHardwareTechnician, this.dgvTxtCmnHold, this.dgvTxtCmnConcern, this.dgvTxtCmnAccuracyStatus, this.dgvTxtCmnEconomicStatus, this.dgvTxtCmnSoftwareStatus, this.dgvTxtCmnServiceStatus, this.dgvTxtCmnHardwareStatus, this.dgvTxtCmnAncillaryStatus, this.dgvTxtCmnFlowStatus, this.dgvTxtCmnImpromedAccountNum, this.dgvTxtCmnOpportunityId}; } public DataGridViewColumn[] GetContractsColumns() { this.dgvTxtConAccount.Visible = this.DgvTxtConAccountVisable; this.dgvTxtConAccuracyStatus.Visible = this.DgvTxtConAccuracyStatusVisable; this.dgvTxtConCreateDate.Visible = this.DgvTxtConCreateDateVisable; this.dgvTxtConEconomicStatus.Visible = this.DgvTxtConEconomicStatusVisable; this.dgvTxtConHardwareStatus.Visible = this.DgvTxtConHardwareStatusVisable; this.dgvTxtConImpromedAccNum.Visible = this.DgvTxtConImpromedAccNumVisable; this.dgvTxtConServiceStatus.Visible = this.DgvTxtConServiceStatusVisable; this.dgvTxtConSoftwareStatus.Visible = this.DgvTxtConSoftwareStatusVisable; this.dgvCbxConPreProductionId.Visible = this.DgvCbxConPreProductionIdVisable; this.dgvCbxConProductionId.Visible = this.DgvCbxConProductionVisable; return new System.Windows.Forms.DataGridViewColumn[] { this.dgvTxtConAccount, this.dgvTxtConImpromedAccNum, this.dgvTxtConCreateDate, this.dgvTxtConAccuracyStatus, this.dgvTxtConEconomicStatus, this.dgvTxtConSoftwareStatus, this.dgvTxtConServiceStatus, this.dgvTxtConHardwareStatus, this.dgvCbxConPreProductionId, this.dgvCbxConProductionId, this.dgvTxtCmnHold, this.dgvTxtCmnConcern, this.dgvTxtCmnAccuracyStatus, this.dgvTxtCmnEconomicStatus, this.dgvTxtCmnSoftwareStatus, this.dgvTxtCmnServiceStatus, this.dgvTxtCmnHardwareStatus, this.dgvTxtCmnAncillaryStatus, this.dgvTxtCmnFlowStatus, this.dgvTxtCmnImpromedAccountNum, this.dgvTxtCmnOpportunityId}; } The issue is when I check a button the first time, everything shows up ok. I choose another view, everything is ok. But when I click on the first view the columns are out of order (it is like they are in reverse order but it is not exactly the same). this happens only to the first page you click on, the other two are fine. You can click off and click back on as many times as you want after those initial steps, The first list you selected at the start will be out of order the other two will be correct. Any ideas on what could be causing this?

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  • C# System.Diagnostics.Process redirecting Standard Out for large amounts of data

    - by Matt
    I running an exe from a .NET app and trying to redirect standard out to a streamreader. The problem is that when I do myprocess.exe out.txt out.txt is close to 14mb. When I do the command line version it is very fast but when I run the process from my csharp app it is excruciatingly slow because I believe the default streamreader flushes every 4096 bytes. Is there a way to change the default stream reader for the Process object?

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