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  • FileUpload ASP.NET control not working under Windows 7

    - by YourMomzThaBomb
    I have a User Control that contains a System.Web.UI.WebControls.FileUpload control as well as a button to 'Submit'. When the button is clicked code similar to the following is executed: If FileUploadControl.HasFile Then 'Save the file and do some other stuff End If This code works just fine with Windows XP. However, if I run it from a Windows 7 64-bit machine using IE8 32-bit the HasFile property always returns false and nothing is saved?! Any suggestions/ideas would be greatly appreciated.

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  • MC75 using symbol.imaging.device libraries for program

    - by Christy
    UPDATE: I found another library in the Windows Mobile - CameraCaptureDialog - this did the job - never did figure out the zero length available devices... Hi all, I have a .net application running on a symbol mc75 (motorola) using the scanner. I am now trying to add functionality for the camera and I am running into issues. To find the 'devices' you are supposed to use the library's 'available devices' function. With the barcode it is symbol.barcode.devices.availabledevices and it returns two items (you can scan from the scanner or using the camera device) However, when I do the camera library it does not find any devices - symbol.imaging.devices.availabledevices returns 0 I can take a picture using the software on the mc75, so I know the functionality is there, I just can't figure out how to get to it programmatically.... Does anyone have any ideas? Thanks for any help!

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  • Few question about client application to be networked

    - by user225269
    I have made a registration program. Making use of mysql database. Can I still use the traditional programming for client applications. If I want to network it. Do I have to modify the codes a little in order to make it work? -Please enlighten me, I'm just a beginner. I don't have any idea on how this works. Do I have to install wampserver only in one computer? I'm using visual studio 2008. Win forms to be exact.

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  • C# Value member property repopulate the control..

    - by karthik
    Hi.. I just wanted to confirm couple of things. I) Code snippet: cmb1.Datasource= dt; cmb1.Valuemember = "value"; Here data population happens 2 time for the control, 1 More time extra,bcoz of value member getting changed after data source assigned. Is it true? II) How can I trace these re population in C#? I just wanted to debug and see and confirm? example please? Thanks Karthik

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  • Access Elements inside a DataTemplate... How to for more than 1 DataTemplate?

    - by GaaTY
    I've got 2 DataTemplates defined for a Listbox Control. 1 Template is for the UnSelected State and the other one is for the Selected State(showing more detail than the UnSelected State). I followed the example here: http://blogs.msdn.com/b/wpfsdk/archive/2007/04/16/how-do-i-programmatically-interact-with-template-generated-elements-part-ii.aspx about how to access the Elements inside the DataTemplates from Code behind. I get it right, but it only finds and returns an element of the UnSelected DataTemplate. But when i search for an element in the Selected DataTemplate i get a NullReferenceException. What could i be doing wrong?

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  • Parsing CSV string and binding it to listbox

    - by Amit Ranjan
    I have splitted comma separated values in an string array, something like this str[0] ="210" str[1] ="abc.pdf" str[2] = "211" str[3] = "xyz.docx" and so on. Please note 0,2,4,6,8 [even positions] are having number and odd positions are having string. I am having a class Attachmodel Public Class AttachmentModel Private _attachmentID As Integer = 0 Private _attachmentPath As String = "" ''' <summary> ''' Get Set Attachment ID ''' </summary> ''' <value></value> ''' <returns></returns> ''' <remarks></remarks> Public Property AttachmentID() As Integer Get Return _attachmentID End Get Set(ByVal value As Integer) _attachmentID = value End Set End Property ''' <summary> ''' Get Set Attachment Path ''' </summary> ''' <value></value> ''' <returns></returns> ''' <remarks></remarks> Public Property AttachmentPath() As String Get Return _attachmentPath End Get Set(ByVal value As String) _attachmentPath = value End Set End Property End Class In the above i want to set the values and bind it to the grid, using List

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  • Searching a set of data with multiple terms using Linq

    - by Cj Anderson
    I'm in the process of moving from ADO.NET to Linq. The application is a directory search program to look people up. The users are allowed to type the search criteria into a single textbox. They can separate each term with a space, or wrap a phrase in quotes such as "park place" to indicate that it is one term. Behind the scenes the data comes from a XML file that has about 90,000 records in it and is about 65 megs. I load the data into a DataTable and then use the .Select method with a SQL query to perform the searches. The query I pass is built from the search terms the user passed. I split the string from the textbox into an array using a regular expression that will split everything into a separate element that has a space in it. However if there are quotes around a phrase, that becomes it's own element in the array. I then end up with a single dimension array with x number of elements, which I iterate over to build a long query. I then build the search expression below: query = query & _ "((userid LIKE '" & tempstr & "%') OR " & _ "(nickname LIKE '" & tempstr & "%') OR " & _ "(lastname LIKE '" & tempstr & "%') OR " & _ "(firstname LIKE '" & tempstr & "%') OR " & _ "(department LIKE '" & tempstr & "%') OR " & _ "(telephoneNumber LIKE '" & tempstr & "%') OR " & _ "(email LIKE '" & tempstr & "%') OR " & _ "(Office LIKE '" & tempstr & "%'))" Each term will have a set of the above query. If there is more than one term, I put an AND in between, and build another query like above with the next term. I'm not sure how to do this in Linq. So far, I've got the XML file loading correctly. I'm able to search it with specific criteria, but I'm not sure how to best implement the search over multiple terms. 'this works but far too simple to get the job done Dim results = From c In m_DataSet...<Users> _ Where c.<userid>.Value = "XXXX" _ Select c The above code also doesn't use the LIKE operator either. So partial matches don't work. It looks like what I'd want to use is the .Startswith but that appears to be only in Linq2SQL. Any guidance would be appreciated. I'm new to Linq, so I might be missing a simple way to do this. The XML file looks like so: <?xml version="1.0" standalone="yes"?> <theusers> <Users> <userid>person1</userid> <nickname></nickname> <lastname></lastname> <firstname></firstname> <department></department> <telephoneNumber></telephoneNumber> <email></email> </Users> <Users> <userid>person2</userid> <nickname></nickname> <lastname></lastname> <firstname></firstname> <department></department> <telephoneNumber></telephoneNumber> <email></email> </Users>

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  • Pattern for managing reference count and object life

    - by Gopalakrishnan Subramani
    We have a serial port which is connected to hundreds of physical devices on the same wire. We have protocols like Modbus and Hart to handle the request and response between the application and devices. The question is related to managing the reference count of the channel. When no device is using the channel, the channel should be closed. public class SerialPortChannel { int refCount = 0; public void AddReference() { refCount++; } public void ReleaseReference() { refCount--; if (refCount <= 0) this.ReleasePort(); //This close the serial port } } For each device connected, we create a object for the device like device = new Device(); device.Attach(channel); //this calls channel.AddReference() When the device disconnect, device.Detach(channel); //this calls channel.ReleaseReference() I am not convinced by the reference count model. Are there any better way to handle this problem in .NET World?

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  • import csv file and save to sql database table using VB2008

    - by Cookster
    Hi all, Well I have read ALOT of posts and I can't quite find the perfect answer to my question, (or I have and havn't realised it!:-)) I have a large csv file that I want to read into my program and sve it to a SQL database table. I'm useing VB2008 and my dabase is SQL2008. Any help would be appreciated. Cheers Cookster

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  • Winforms, databinding, Listbox and textbox

    - by Snake
    Hi dear friends, I have a ListBox (MyListBox) on my screen, and a Textbox (MyTextBox). The ListBox is filled with a List(Of T), which are all custom items. Now I try to do this: The ListBox' datasource is the List(Of T). Now when an Item changes I want the textbox to be updated to a particular property of the selected item in my ListBox. In code this means: Me.MyListBox.DisplayMember = "SelectionName" Me.MyListBox.ValueMember = "Id" MyTextbox.DataBindings.Add(New Binding("Text", Me._listOfItems, "SelectedItem.Comment", True, DataSourceUpdateMode.OnPropertyChanged)) Me.MyListBox.DataSource = Me._listOfItems this does not work. But when I bind to SelectedValue instead of SelectedItem it works perfectly. The _listOfItems is declared as this: Dim _listOfItems As List(Of MyItem) = New List(Of MyItem)() Where MyItem is this: public class MyItem { public string SelectionName { get; set; } public int Id { get; set; } public string Comment { get; set; } } I tried overriding the ToString() in MyItem so that it would use that. But that doesn't work either. Anybody care to give it a try? Thanks! -Snakiej

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  • Entity Framework 4 / POCO - Where to start?

    - by Basiclife
    Hi, I've been programming for a while and have used LINQ-To-SQL and LINQ-To-Entities before (although when using entities it has been on a Entity/Table 1-1 relationship - ie not much different than L2SQL) I've been doing a lot of reading about Inversion of Control, Unit of Work, POCO and repository patterns and would like to use this methodology in my new applications. Where I'm struggling is finding a clear, concise beginners guide for EF4 which doesn't assume knowledge of EF1. The specific questions I need answered are: Code first / model first? Pros/cons in regards to EF4 (ie what happens if I do code first, change the code at a later date and need to regenerate my DB model - Does the data get preserved and transformed or dropped?) Assuming I'm going code-first (I'd like to see how EF4 converts that to a DB schema) how do I actually get started? Quite often I've seen articles with entity diagrams stating "So this is my entity model, now I'm going to ..." - Unfortunately, I'm unclear if they're created the model in the designer, saved it to generate code then stopped any further auto-code generation -or- They've coded (POCO)? classes and the somehow imported them into the deisgner view? I suppose what I really need is an understanding of where the "magic" comes from and how to add it myself if I'm not just generating an EF model directly from a DB. I'm aware the question is a little vague but I don't know what I don't know - So any input / correction / clarification appreciated. Needless to say, I don't expect anyone to sit here and teach me EF - I'd just like some good tutorials/forums/blogs/etc. for complete entity newbies Many thanks in advance

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  • .net clipboard metadata (or whatever skype quotations use)

    - by Cyclone
    Is it possible to use the Clipboard class to grab all the data from the clipboard, like full skype quotes? They use some kind of metadata I think, which is how it knows when something is a quote or not. How can I access that from the Clipboard class? What functions would I call to set/restore Skype quotations? Thanks for the help!

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  • Getting the highest owner of a ToolStripDropDownItem

    - by andyperfect
    I'm currently working on a project in which at one point, the user may right click a button which brings up a contextMenuStrip. I am already able to find the owner accurately from that strip, and manipulate the button clicked as follows: Dim myItem As ToolStripMenuItem = CType(sender, ToolStripMenuItem) Dim cms As ContextMenuStrip = CType(myItem.Owner, ContextMenuStrip) Dim buttonPressed As DataButton = DirectCast(cms.SourceControl, DataButton) But now for the tricky part. Within this contextmenuStrip, I have a DropDown menu with multiple items in there. I would assume you would be able to work your way up the ladder doing casts like above in the manner of ToolStripDrowpDownItem > ToolStripDropDownMenu > ToolStripMenuItem > ContextMenuStrip Unfortunately, when I try to get the sourcecontrol from this menuStrip, it return Nothing. Any ideas on how I can get the button that was pressed from this toolStripMenuItem? My current code is as follows (in which the sourceControl is Nothing) Dim myItem As ToolStripDropDownItem = CType(sender, ToolStripDropDownItem) Dim dropDown As ToolStripDropDownMenu = CType(myItem.Owner, ToolStripDropDownMenu) Dim menuItem As ToolStripMenuItem = CType(dropDown.OwnerItem, ToolStripMenuItem) Dim cms As ContextMenuStrip = CType(menuItem.Owner, ContextMenuStrip) Dim buttonPressed As DataButton = DirectCast(cms.SourceControl, DataButton) Any ideas on how to go about doing what I did in that first method, but just working my way up from further down the ladder?

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  • Merge Word Documents (Office Interop & .NET), Keeping Formatting

    - by mbmccormick
    I'm having some difficulty merging multiple word documents together using Microsoft Office Interop Assemblies (Office 2007) and ASP.NET 3.5. I'm able to merge the documents, but some of my formatting is missing (namely the fonts and images). My current merge code is shown below. private void CombineDocuments() { object wdPageBreak = 7; object wdStory = 6; object oMissing = System.Reflection.Missing.Value; object oFalse = false; object oTrue = true; string fileDirectory = @"C:\documents\"; Microsoft.Office.Interop.Word.Application WordApp = new Microsoft.Office.Interop.Word.Application(); Microsoft.Office.Interop.Word.Document wDoc = WordApp.Documents.Add(ref oMissing, ref oMissing, ref oMissing, ref oMissing); string[] wordFiles = Directory.GetFiles(fileDirectory, "*.doc"); for (int i = 0; i < wordFiles.Length; i++) { string file = wordFiles[i]; wDoc.Application.Selection.Range.InsertFile(file, ref oMissing, ref oMissing, ref oMissing, ref oFalse); wDoc.Application.Selection.Range.InsertBreak(ref wdPageBreak); wDoc.Application.Selection.EndKey(ref wdStory, ref oMissing); } string combineDocName = Path.Combine(fileDirectory, "Merged Document.doc"); if (File.Exists(combineDocName)) File.Delete(combineDocName); object combineDocNameObj = combineDocName; wDoc.SaveAs(ref combineDocNameObj, ref m_WordDocumentType, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing); } I don't care necessarily how this is accomplished. It could output via PDF if it had to. I just want the formatting to carry over. Any help or hints that you could provide me with would be appreciated! Thanks!

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  • installer for distribution visual studio 2008 express

    - by Matt Facer
    Hi guys... I've been doing some research in to installers for visual studio express 2008. I don't much like the standard publish option. I'd rather have a proper windows installer. Am I right in thinking that the only way to do this is to upgrade to the standard edition? Are there any third party tools which can be used? I've tried googling a lot, but don't seem to be getting anywhere!

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  • datagridview winform tag only brings back the first row value

    - by jvcoach23
    I'm using visual studio 2008. I have a datagridview in a winform. I've bound to it using an object Private Sub LoadAllCampers() Dim Os As List(Of LE.Camper) = Nothing Dim Oc As New LE.Camper_Controller Os = Oc.GetCamperData(0) With Me.dgResults .DataSource = Os End With CamperBindingSource.DataSource = Os End Sub I have a tag setup on the ID property within the Camper class. when i double click on a row in teh datagridview, i do a me.dgResults.tag and it always shows the first rows ID value. If i change the ordering within the class, it will display a different value, but it's always the first value in the datagridview. I'm missing something simple to get this working.. just don't know what it is. Hopefully someone can spare a minute.

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  • How to display static (shared) object's properties in a PropertyGrid?

    - by Paul Sasik
    I would like to display static (shared) objects at runtime in a PropertyGrid but if I try to set the selected object property of the grid like this: _propertyGrid.SelectedObject = System.Windows.Forms.Application I get a compilation error: 'Application' is a type and cannot be used as an expression. Is there a way to display a static (shared) object or the object's properties in the PropertyGrid?

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  • Dispose Form opened in MainForm tab

    - by fireBand
    Hi, I have a MainForm which has tab Control and several independent form. I open each Individual From in the tab of the main form. A "Close Tab" button on the MainFrom closes the current tab, its implementation is below. This closes the current tab but what I also need is to dispose the From whose tab is closed but I am not sure how to get the instance of the form.' Any help is appreciated Thanks in Advance. 'Close the current tab Private Sub CloseCurrentTab() 'Close the current tab Dim tabPageSave As TabPage tabPageSave = tcDisplayDetails.SelectedTab tcDisplayDetails.TabPages.Remove(tabPageSave) End Sub

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  • Is it too early to start designing for Task Parallel Library?

    - by Joe Erickson
    I have been following the development of the .NET Task Parallel Library (TPL) with great interest since Microsoft first announced it. There is no doubt in my mind that we will eventually take advantage of TPL. What I am questioning is whether it makes sense to start taking advantage of TPL when Visual Studio 2010 and .NET 4.0 are released, or whether it makes sense to wait a while longer. Why Start Now? The .NET 4.0 Task Parallel Library appears to be well designed and some relatively simple tests demonstrate that it works well on today's multi-core CPUs. I have been very interested in the potential advantages of using multiple lightweight threads to speed up our software since buying my first quad processor Dell Poweredge 6400 about seven years ago. Experiments at that time indicated that it was not worth the effort, which I attributed largely to the overhead of moving data between each CPU's cache (there was no shared cache back then) and RAM. Competitive advantage - some of our customers can never get enough performance and there is no doubt that we can build a faster product using TPL today. It sounds fun. Yes, I realize that some developers would rather poke themselves in the eye with a sharp stick, but we really enjoy maximizing performance. Why Wait? Are today's Intel Nehalem CPUs representative of where we are going as multi-core support matures? You can purchase a Nehalem CPU with 4 cores which share a single level 3 cache today, and most likely a 6 core CPU sharing a single level 3 cache by the time Visual Studio 2010 / .NET 4.0 are released. Obviously, the number of cores will go up over time, but what about the architecture? As the number of cores goes up, will they still share a cache? One issue with Nehalem is the fact that, even though there is a very fast interconnect between the cores, they have non-uniform memory access (NUMA) which can lead to lower performance and less predictable results. Will future multi-core architectures be able to do away with NUMA? Similarly, will the .NET Task Parallel Library change as it matures, requiring modifications to code to fully take advantage of it? Limitations Our core engine is 100% C# and has to run without full trust, so we are limited to using .NET APIs.

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  • Problem using ScriptManager.RegisterStartUpScript in user control - Script Error "function is not de

    - by poojad
    I have a aspx page which contains a User Control uc1 ans within uc1, there is another user control uc2. Now I need to call a javascript function in the uc2's page load. (I understand that the Pages are not properly designed, but I am sorry as this is an old application, I am not supposed to make any changes in the design) I am doing this using ScriptManager.RegisterStartUpScript as I have an update panel, but the function is not being called and the script error "load is not defined" is fired. (load is the javascript function in uc2) Can anyone help me out with this? Thank you.

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  • multiple Button click

    - by Bharat
    hello there i have 5 buttons in row (btn1,btn2,btn3,btn4,btn5) and 1 OK button when i click indivisually to each button of 5 buttons its color changes to red and after click on OK button the color of buttons which are red turns green the problem is that i don't know how to insert induvisual record of each button of which color is green in access database help me if you have any answer

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  • VisualBasic.net Database Boiler Plate

    - by Shiftbit
    Is there any built in .net Classes to assist in the reduction of boiler plate code? I have numerous database operations going on and I find that I am reproducing the connection, command, transaction and occassianlly data set. I am aware of the Java Related Question, however, the solutions pertain to Java. I was wondering if anyone was aware of a .net solution? http://stackoverflow.com/questions/1072925/remove-boilerplate-from-db-code Public Sub ReadData(ByVal connectionString As String) Dim queryString As String = "SELECT EmpNo, EName FROM Emp" Using connection As New OracleConnection(connectionString) Dim command As New OracleCommand(queryString, connection) connection.Open() Using reader As OracleDataReader = command.ExecuteReader() ' Always call Read before accessing data. While reader.Read() Console.WriteLine(reader.GetInt32(0).ToString() + ", " _ + reader.GetString(1)) End While End Using End Using End Sub MSDN

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  • Possible to view T-SQL syntax of a stored proc-based SqlCommand?

    - by mconnley
    Hello! I was wondering if anybody knows of a way to retrieve the actual T-SQL that is to be executed by a SqlCommand object (with a CommandType of StoredProcedure) before it executes... My scenario involves optionally saving DB operations to a file or MSMQ before the command is actually executed. My assumption is that if you create a SqlCommand like the following: Using oCommand As New SqlCommand("sp_Foo") oCommand.CommandType = CommandType.StoredProcedure oCommand.Parameters.Add(New SqlParameter("@Param1", "value1")) oCommand.ExecuteNonQuery() End Using It winds up executing some T-SQL like: EXEC sp_Foo @Param1 = 'value1' Is that assumption correct? If so, is it possible to retrieve that actual T-SQL somehow? My goal here is to get the parsing, etc. benefits of using the SqlCommand class since I'm going to be using it anyway. Is this possible? Am I going about this the wrong way? Thanks in advance for any input!

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  • Pattern for limiting number of simultaneous asynchronous calls

    - by hitch
    I need to retrieve multiple objects from an external system. The external system supports multiple simultaneous requests (i.e. threads), but it is possible to flood the external system - therefore I want to be able to retrieve multiple objects asynchronously, but I want to be able to throttle the number of simultaneous async requests. i.e. I need to retrieve 100 items, but don't want to be retrieving more than 25 of them at once. When each request of the 25 completes, I want to trigger another retrieval, and once they are all complete I want to return all of the results in the order they were requested (i.e. there is no point returning the results until the entire call is returned). Are there any recommended patterns for this sort of thing? Would something like this be appropriate (pseudocode, obviously)? private List<externalSystemObjects> returnedObjects = new List<externalSystemObjects>; public List<externalSystemObjects> GetObjects(List<string> ids) { int callCount = 0; int maxCallCount = 25; WaitHandle[] handles; foreach(id in itemIds to get) { if(callCount < maxCallCount) { WaitHandle handle = executeCall(id, callback); addWaitHandleToWaitArray(handle) } else { int returnedCallId = WaitHandle.WaitAny(handles); removeReturnedCallFromWaitHandles(handles); } } WaitHandle.WaitAll(handles); return returnedObjects; } public void callback(object result) { returnedObjects.Add(result); }

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