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  • Array index is not accessable because it is Friend

    - by user3738194
    I am getting and error when I bring my code into another project. In a blank project it works fine, I really have no idea how to get around it, here is the error Error 1 'System.Data.Index' is not accessible in this context because it is 'Friend'. Dim DataString As String = txtAdvancedCommand.Text ' Create an array containing from each letter in Textbox Dim charArray() As Char = DataString.ToCharArray For index = 0 To charArray.GetUpperBound(0) <-----ERROR on word index Try 'Now lets send the data If SerialPort.IsOpen Then SerialPort.Write(charArray(index) & vbCrLf) <-----ERROR on word index Else ConnectSerial() SerialPort.Write(charArray(index) & vbCrLf) <-----ERROR on word index End If Catch e As Exception txtLog.AppendText(e.Message & vbCrLf) End Try Next now the project I am bringing into has a DLL and I suspect it has something to do with it, I cannot get the source code to the DLL so is there another way around this?

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  • Array basics - Populating with loop

    - by madlan
    Hi, I'm looping through a zip file trying to add the file name of each file within. Is this the correct method? Dim ZipNameArray(?) Using zip As ZipFile = ZipFile.Read(ZipToUnpack) For Each file In zip ZipNameArray(?) = file .FileName Next End Using I do not know the array size until I start looping through the zip (To work out the number of files within). How do I increment the Array? file is not a number? (It's a ZipEntry)

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  • Store code line in a string?

    - by user1342164
    I need to store code in a string so that if a value is true, it is in the code line if not true its not in the code line. When I populate summarytextbox if consulting amount is "" then dont use this code if is does have an amount include the code. Is this possible? Other wise I would have to do a bunch if then statements. When I do the following below it cant convert to double. Dim ConsultingFee As String Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load If Session("ConsultingFeeAmount") = "" Then Else 'Store the following line in a string???? ConsultingFee = +Environment.NewLine + Session("ConsultingFee") + " Amount: " + Session("ConsultingFeeAmount") End If SummaryTextBox.Text = Session("TeachingHospital") + Environment.NewLine + Session("HospitalAddress") + Environment.NewLine + Session("HospitalCity") + Environment.NewLine + Session("HospitalState") + Environment.NewLine + Session("HospitalZip") + Environment.NewLine + Session("HospitalTIN") + ConsultingFee End Sub

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  • How can I create a generic constructor? (ie. BaseClass.FromXml(<param>)

    - by SofaKng
    I'm not sure how to describe this but I'm trying to create a base class that contains a shared (factory) function called FromXml. I want this function to instantiate an object of the proper type and then fill it via an XmlDocument. For example, let's say I have something like this: Public Class XmlObject Public Shared Function FromXml(ByVal source as XmlDocument) As XmlObject // <need code to create SPECIFIC TYPE of object and return it End Function End Class Public Class CustomObject Inherits XmlObject End Class I'd like to be able to do something like this: Dim myObject As CustomObject = CustomObject.FromXml(source) Is this possible?

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  • Help setting focus on the parent

    - by serhio
    I have a simple situation (.NET2): a texbox1 on a UserControl1(or Form1). I want to unfocus(leave) the texbox when I click on the usercontrol/form(focus the usercontrol/form instead): I do the following on the UC/form: Protected Overrides Sub OnMouseClick _ (ByVal e As System.Windows.Forms.MouseEventArgs) MyBase.OnMouseClick(e) Me.Focus() End Sub Why does it not work on the child textbox, but works very well on the non-child one(focus on textBox2 then click on the panel removes the focus from the textBox2)? Real project Window

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  • How Do You Parse Column Data ?

    - by discwiz
    I am trying to parse a file generated by LGA Tracon that lists the position data for aircraft over a given time frame. The data of interest starts with TRACKING DATA and ends with SST and there are thousands of entries per file. The system generating the file, Common ARTS, is very rigid in its formatting and we can expect the column spacing to be consistent. Any help would be greatly appreciated. Thanks, Here is an image to preserve the exact formatting Here is a reduced text file. link text

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  • Combining two .png images into one image using .NET

    - by Omega
    I have two (actually many) .png images in my application. Both have transparent areas here and there. I want, in my application, to take both images, combine them, and display the result in a picture box. Later I want to save the result through a button. So far I managed to find the two images and combine them, but it seems the transparency thing won't work. I mean, if you put one image over another, only the top image is visible as the result because, apparently, the image's background is a plain white box. Which is not. Here is a bit of my code: Dim Result As New Bitmap(96, 128) Dim g As Graphics = Graphics.FromImage(Result) Dim Name As String For Each Name In BasesCheckList.CheckedItems Dim Layer As New Bitmap(resourcesPath & "Bases\" & Name) For x = 0 To Layer.Width - 1 For y = 0 To Layer.Height - 1 Result.SetPixel(x, y, Layer.GetPixel(x, y)) Next Next Layer = Nothing Next resourcesPath is the path to my resources folder. Bases is a folder in it. And Name is the image's name. Thank you.

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  • What features are heavily used in C# 2.0, but is not available in VBNET 2.0, and how to workaround?

    - by Will Marcouiller
    I don't want a war between VBNET and C# developpers, neither is my goal to open a C# VS VBNET confrontation. I would like you all to list a feature that is heavily used in C#, but is not available in VBNET 2.0, and how would you work around to achieve a similar behaviour or purpose? For example: C# Accepts void (return) lambda expressions. Here's an example with FNH mapping: Component(x => x.Address, m => { m.Map(x => x.Number); m.Map(x => x.Street); m.Map(x => x.PostCode); }); This is impossible to do before VBNET 4.0 (supposed to be doable in VBNET 4.0) VBNET Must write a helping method (Sub), and provide the AddressOf this method in order to workaround. Private Sub Helper(ByVal m As MType) m.Map(Function(x) x.Number) m.Map(Function(x) x.Street) m.Map(Function(x) x.PostCode) End Sub ... Component(Function(x) x.Address, AddressOf Helper) Now I know, it is not VBNET 2.0, but this is an example. VBNET 3.0 and 3.5 can used too. Please just mention what version of VBNET this refers to.

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  • Need Language/Career Path Advice

    - by Cain
    I am interested in getting a few Microsoft Certs and I am currently facing the option for .NET Framework app development language. My choices are C++, C#, and Visual Basic. I have some experience with Java and Visual Basic .NET but I honestly would like to know what the best would be for developing stand-alone applications in a workstation (local) environment. This is for my career and honestly, 90% of the developers are all experienced in the above three languages and I wanted to improve my chances of staying employed by learning/certifying myself on my own time.

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  • Dataset and Hierarchial Data How to Sort

    - by mdjtlj
    This is probably a dumb question, but I've hit a wall with this one at this current time. I have some data which is hierarchial in nature which is in an ADO.NEt dataset. The first field is the ID, the second is the Name, the third is the Parent ID. ID NAME Parent ID 1 Air Handling NULL 2 Compressor 1 3 Motor 4 4 Compressor 1 5 Motor 2 6 Controller 4 7 Controller 2 So the tree would look like the following: 1- Air Handling 4- Compressor 6 - Controller 3 - Motor 2- Compressor 7- Controller 5 - Motor What I'm trying to figure our is how to get the dataset in the same order that ths would be viewed in a treeview, which in this case is the levels at the appropriate levels for the nodes and then the children at the appropriate levels sorted by the name. It would be like binding this to a treeview and then simply working your way down the nodes to get the right order. Any links or direction would be greatly appreciated.

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  • Strange Effect with Overridden Properties and Reflection

    - by naacal
    I've come across a strange behaviour in .NET/Reflection and cannot find any solution/explanation for this: Class A { public string TestString { get; set; } } Class B : A { public override string TestString { get { return "x"; } } } Since properties are just pairs of functions (get_PropName(), set_PropName()) overriding only the "get" part should leave the "set" part as it is in the base class. And this is just what happens if you try to instanciate class B and assign a value to TestString, it uses the implementation of class A. But what happens if I look at the instantiated object of class B in reflection is this: PropertyInfo propInfo = b.GetType().GetProperty("TestString"); propInfo.CanRead ---> true propInfo.CanWrite ---> false(!) And if I try to invoke the setter from reflection with: propInfo.SetValue("test", b, null); I'll even get an ArgumentException with the following message: Property set method not found. Is this as expected? Because I don't seem to find a combination of BindingFlags for the GetProperty() method that returns me the property with a working get/set pair from reflection.

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  • Give a number to return the approximated value of an Enum?

    - by ElektroStudios
    I have this enumeration: Enum Lame_Bitrate kbps_8 = 8 kbps_16 = 16 kbps_24 = 24 kbps_32 = 32 kbps_40 = 40 kbps_48 = 48 kbps_56 = 56 kbps_64 = 64 kbps_80 = 80 kbps_96 = 96 kbps_112 = 112 kbps_128 = 128 kbps_144 = 144 kbps_160 = 160 kbps_192 = 192 kbps_224 = 224 kbps_256 = 256 kbps_320 = 320 End Enum And I would like to return the approximated value of the Enum given a number. For example, if I have the number 190 then I expect to find the more approximated value in the Enum to return the 192 (kbps_192 value of the Enum), if I have the number 196 then again I expect to return the value 192 (not return the next value 224 because is less approximated). Something like this: Private Sub Test() Dim wma_file As String = "C:\windows media audio file.wma" Dim wma_file_Bitrate As Integer = 172 Dim mp3_bitrate_approximated As Integer mp3_bitrate_approximated = Return_Approximated_Value_Of_Enum(wma_file_Bitrate) End Sub private function Return_Approximated_Value_Of_Enum(byval value as integer) as integer return... enum.find(value).approximated... end function Exist any framework method to find the more approximated number given other number in a Enum? I hope you can understand my question, thank you. PS: I prefer a solution using LINQ extensions if can be.

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  • Loading user control dynamically looses data

    - by user228777
    I have a created a user control. This user control I dynamically load on a page inside Telerik Panelbar control. I have done all necessary coding to save the viewstate and load this dynamically created usercontrol every time page loads. On this User control I have a asp panel. By default this panel is invisible. When user clicks a button on this user control panel is made visible. On page load of this user control I populate all the controls on this panel. Everything works fine if I don’t load this use control dynamically but when I load this user control dynamically and if I make panel visible by default then only all fields on the panel are populated. But if I make by default invisible and on button click make panel visible none of the text boxes or comboboxes are populated. I populate comboboxes on page load of the userControl but inbetween postbacks all the comboboxes on the user control loose data. ON the parent page I am saving the viewstate This is my code on parent page to dynamically load userControl ( which has panel on it) Dim ucPiggyBank As SubscriberSetupPages_UserControls_PiggyBank = CType(LoadControl("~/SubscriberSetupPages/UserControls/PiggyBank.ascx"), SubscriberSetupPages_UserControls_PiggyBank) With ucPiggyBank .PiggyBankID = account.Id .ID = account.Id.ToString 'Setting up following 3 properties here to avoid database trips .PiggyBankEligibleAccounts = piggyBankEligibleAccountCollection .MemorizedNames = memorizednames .Period = period End With radPanelNewChild.Controls.Add(ucPiggyBank) radPanelNew.Items.Add(radPanelNewChild) radPanelNew.Expanded = True ‘this is the Panel item on parent page of Telerik Panelbar control. Dim radPanelPiggyBank As RadPanelItem = DirectCast(pnlbarPiggyBank.FindItemByValue("TestItem"), RadPanelItem) With radPanelPiggyBank .Items.Add(radPanelNew) .DataBind() End With ‘I am doing everything for saving viewstate on parent control This is the code on page load of userControl If Not IsPostBack Then If m_PiggyBankID <> Guid.Empty Then 'Load data Call GetPiggyBankDetails() End If I have a edit button on the user control which makes panel visible. It makes panel visible but with no data. Can you please tell me what’s happening? Thanks in advance.

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  • I cant able to remove a row from a table while running through a loop

    - by Vibin Jith
    I am iterating through the table rows . if the row row is null I just want to remove the row. it shows an error Public Sub RemoveBlankRow(ByVal MyDataTable As DataTable) Try Dim MyRowStr As String = String.Empty For Each MyRow As DataRow In MyDataTable.Rows MyRowStr = "" For Each MyCellText As Object In MyRow.ItemArray MyRowStr = MyRowStr + MyCellText.ToString Next MyRowStr = Replace(MyRowStr, "0", " ") MyRowStr = Replace(MyRowStr, ".", " ") If MyRowStr.Trim = String.Empty Then MyDataTable.Rows.Remove(MyRow) End If Next Catch ex As Exception End Try End Sub How to overcome this issue?

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  • Is there a Better Way to Retreive Raw XML from a URL than WebClient or HttpWebRequest? [.NET]

    - by DaMartyr
    I am working on a Geocoding app where I put the address in the URL and retreive the XML. I need the complete XML response for this project. Is there any other class for downloading the XML from a website that may be faster than using WebClient or HttpWebRequest? Can the XMLReader be used to get the full XML without string manipulation and would that be faster and/or more efficient?

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  • Where to find a unique session ID at design time in .Net WinForms.

    - by Jules
    I've created a custom clipboard because it's not possible to make my whole class map serializable - which is a requirement for the windows clipboard. However, I need to distinguish between users who are using my clipboard through a unique id. Basically, I want to be able identify a person who is sat at one PC with one or more copies of visual studio (or similar) open. How do I do that? ps: This is at design-time. pps: It's not critical that it should work between copies of visual studio. One copy would be fine, or even one design surface.

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  • Saving ntext data from SQL Server to file directory using asp

    - by April
    A variety of files (pdf, images, etc.) are stored in a ntext field on a MS SQL Server. I am not sure what type is in this field, other than it shows question marks and undefined characters, I am assuming they are binary type. The script is supposed to iterate through the rows and extract and save these files to a temp directory. "filename" and "contenttype" are given, and "data" is whatever is in the ntext field. I have tried several solutions: 1) data.SaveToFile "/temp/"&filename, 2 Error: Object required: '????????????????????' ??? 2) File.WriteAllBytes "/temp/"&filename, data Error: Object required: 'File' I have no idea how to import this, or the Server for MapPath. (Cue: what a noob!) 3) Const adTypeBinary = 1 Const adSaveCreateOverWrite = 2 Dim BinaryStream Set BinaryStream = CreateObject("ADODB.Stream") BinaryStream.Type = adTypeBinary BinaryStream.Open BinaryStream.Write data BinaryStream.SaveToFile "C:\temp\" & filename, adSaveCreateOverWrite Error: Arguments are of the wrong type, are out of acceptable range, or are in conflict with one another. 4) Response.ContentType = contenttype Response.AddHeader "content-disposition","attachment;" & filename Response.BinaryWrite data response.end This works, but the file should be saving to the server instead of popping up save-as dialog. I am not sure if there is a way to save the response to file. Thanks for shedding light on any of these problems!

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  • Read assembly Guid

    - by ggonsalv
    Is it possible to read the GUID from the Assembly without actually loading it in the current App Domain. Normally Assembly.Load loads the DLL into the app domain. I just want to read the value. The description of the GUID is 'The following GUID is for the ID of the typelib ' if this project is exposed to COM <Assembly: Guid("DEDDE61CD-928E-4ACD-8C25-3B8577284819")>

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  • How to implement tagging in asp.net using visual basic.

    - by Marina A
    Hi all how can i implement tagging in my asp.net website using visual basic. is there any online video tutorials? or complete help of tagging and how to show older tags or give new tags to any contents. secondly i want to know how to implement cloud tagging? The say why of tagging this stake overflow is using right now. when we put the mouse on tags text box it suggest some older tags and also we can enter new tags.

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  • Different approaches for finding users within Active Directory

    - by EvilDr
    I'm a newbie to AD programming, but after a couple of weeks of research have found the following three ways to search for users in Active Directory using the account name as the search parameter: Option 1 - FindByIdentity Dim ctx As New PrincipalContext(ContextType.Domain, Environment.MachineName) Dim u As UserPrincipal = UserPrincipal.FindByIdentity(ctx, IdentityType.SamAccountName, "MYDOMAIN\Administrator") If u Is Nothing Then Trace.Warn("No user found.") Else Trace.Warn("Name=" & u.Name) Trace.Warn("DisplayName=" & u.DisplayName) Trace.Warn("DistinguishedName=" & u.DistinguishedName) Trace.Warn("EmployeeId=" & u.EmployeeId) Trace.Warn("EmailAddress=" & u.EmailAddress) End If Option 2 - DirectorySearcher Dim connPath As String = "LDAP://" & Environment.MachineName Dim de As New DirectoryEntry(connPath) Dim ds As New DirectorySearcher(de) ds.Filter = String.Format("(&(objectClass=user)(anr={0}))", Split(User.Identity.Name, "\")(1)) ds.PropertiesToLoad.Add("name") ds.PropertiesToLoad.Add("displayName") ds.PropertiesToLoad.Add("distinguishedName") ds.PropertiesToLoad.Add("employeeId") ds.PropertiesToLoad.Add("mail") Dim src As SearchResult = ds.FindOne() If src Is Nothing Then Trace.Warn("No user found.") Else For Each propertyKey As String In src.Properties.PropertyNames Dim valueCollection As ResultPropertyValueCollection = src.Properties(propertyKey) For Each propertyValue As Object In valueCollection Trace.Warn(propertyKey & "=" & propertyValue.ToString) Next Next End If Option 3 - PrincipalSearcher Dim ctx2 As New PrincipalContext(ContextType.Domain, Environment.MachineName) Dim sp As New UserPrincipal(ctx2) sp.SamAccountName = "MYDOMAIN\Administrator" Dim s As New PrincipalSearcher s.QueryFilter = sp Dim p2 As UserPrincipal = s.FindOne() If p2 Is Nothing Then Trace.Warn("No user found.") Else Trace.Warn(p2.Name) Trace.Warn(p2.DisplayName) Trace.Warn(p2.DistinguishedName) Trace.Warn(p2.EmployeeId) Trace.Warn(p2.EmailAddress) End If All three of these methods return the same results, but I was wondering if any particular method is better or worse than the others? Option 1 or 3 seem to be the best as they provide strongly-typed property names, but I might be wrong? My overall objective is to find a single user within AD based on the user principal value passed via the web browser when using Windows Authentication on a site (e.g. "MYDOMAIN\MyUserAccountName")

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