Search Results

Search found 18731 results on 750 pages for 'vb common controls replac'.

Page 29/750 | < Previous Page | 25 26 27 28 29 30 31 32 33 34 35 36  | Next Page >

  • Displaying Many-To-Many Database relationship in VB.NET 2008 with DataGrid, MS SQL 2008

    - by user337501
    Computer bombed while posting this, couldnt find a duplicate question but if there is one, forgive me. So, I've run into a wall. And rather than use a ladder to avoid it, I'd like go through it. I'm setting up what I can best describe as a many-to-many relationship in a database. To examplify, imagine I have three primary tables: Items, Categories, Sections(nevermind the potential redundancy) Then I have another table, Properties. Items, Categories, and Sections can be associated with many properties. A single property can be associated with one, all, or none of the other tables. The best way I can figure to do this is to have join tables make the relationship. i.e. tblItems----(Foreign Key)----tblItems_To_Properties----(Foreign Key)----tblProperties In this example, tblItems simply has an "ItemID" Primary Key. tblItems_To_Properties has its own Primary Key(tblItems_To_PropertiesID), a Foreign Key to the Item(ItemID) and a Foreign key to the Property(PropertyID). The Properties table simply has its primary key(PropertyID) I hope this example isnt too confusing...if I have to I can find a way to put a diagram up or something. My problem is, I want to display this in a DataGrid using the Master-Detail method(DevExpress GridControl). I use the tblItems as a test, and I can see the Items in the parent view, but in the child view I see(understandably) the join table and that is it. My goal is to make it so the Grid ignores the join table and shows the Properties table as the only child. Any help on this method or insight into another solution would be muuuuuuuch appreciat

    Read the article

  • How to split string in group in vb.net

    - by amol kadam
    Hi. i'm amol kadam,I want to know how to split string in two part.My string is in Time format (12:12).& I want to seperate this in hour & minute format.the datatype for all variables are string. for hour variable used strTimeHr & for minute strTimeMin .I tried below code but their was a exception "Index and length must refer to a location within the string. Parameter name: length" If Not (objDS.Tables(0).Rows(0)("TimeOfAccident") Is Nothing Or objDS.Tables(0).Rows(0)("TimeOfAccident") Is System.DBNull.Value) Then strTime = objDS.Tables(0).Rows(0)("TimeOfAccident") 'strTime taking value 12:12 index = strTime.IndexOf(":") 'index taking value 2 lastIndex = strTime.Length 'Lastindex taking value 5 strTimeHr = strTime.Substring(0, index) 'strTime taking value 12 correctly strTimeMin = strTime.Substring(index + 1, lastIndex) 'BUT HERE IS PROBLEM OCCURE strTimeMin Doesn't taking any value Me.NumUpDwHr.Text = strTimeHr Me.NumUpDwMin.Text = strTimeMin End If

    Read the article

  • Problems refreshing DataGridView after database update in VB.NET

    - by Gbolahan
    Dim myQuery = "UPDATE table1 SET data= CONCAT (data,'" & vbCrLf & "[ " & Date.Now() & " ]" & " " & "[" & getCN() & "]" & " " & txtTelenotes.Text & "[ item1 ]" & "') WHERE id='" & txtID.Text & "'" myCommand.Connection = conn myCommand.CommandText = myQuery myAdapter.SelectCommand = myCommand Dim myData As MySqlDataReader myData = myCommand.ExecuteReader() txtTelenotes.Text = "" dgvREcord.Refresh() I tried refreshing the DataGridView using: dgvREcord.Refresh() but it does not load the changes from the database.

    Read the article

  • vb.net pdf reader load problem

    - by steve
    From the tools menu I have done right clickchoose itemCOM (tab) and ticked adobe pdf reader. From here I simply dragged the pdf tool onto my form. That's all I've done. Now on form load it throws a bug. "InvalidOperationException was unhandled" hovering over the message it says the following, An error occurred creating the form. See Exception.InnerException for details. The error is: Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)) Any ideas anyone? Gonna take a mastermind to work this one out seriously

    Read the article

  • convert VB code to C# help please??

    - by ilkdrl
    var aktif=0, gosterim_adeti=5; var dizi = new Array(); $(document).ready(function(){ var boyut = $("#alan p").length; for(var i=0; i<boyut; i++) { dizi[i] = $("#alan p:eq("+i+")").html(); } $("#alan").html(""); for(var i=0; i<gosterim_adeti; i++) { $("#alan").append("<p>"+dizi[i]+"</p>"); } setInterval(degistir, 2000); function degistir() { aktif = (aktif + 1)%boyut; $("#alan").html(""); var ilk = aktif-1; if(ilk<0)ilk = ilk+boyut; $("#alan").append("<p>"+dizi[ilk]+"</p>"); for(var i=aktif; i<aktif + gosterim_adeti;i++) { $("#alan").append("<p>"+dizi[(i%boyut)]+"</p>"); } $("#alan p:first").slideUp(500); $("#alan p:last").css("height","0px").animate({height:"40px"},600);

    Read the article

  • VB.NET add an element to the XML document with LINQ to XML

    - by Bayonian
    Hi, I'm adding an element to existing XML doc with the following code: Dim theXMLSource As String = Server.MapPath("~/Demo/") & "LabDemo.xml" Dim nodeElement As XElement Dim attrAndValue As XElement = _ <LabService> <ServiceType> <%= txtServiceType.Text.Trim %> </ServiceType> <Level> <%= txtLevel.Text.Trim %> </Level> </LabService> nodeElement.Add(New XElement(attrAndValue)) nodeElement.Save(theXMLSource) It makes error like this: System.NullReferenceException: Object reference not set to an instance of an object. Object reference not set to an instance of an object. Error line: nodeElement.Add(New XElement(attrAndValue)) I debugged it but I couldn't get the error yet. Can you show what the problem is? Thank you

    Read the article

  • Long overdue (for me) question about disposing managed objects in .Net, VB.Net, C#

    - by Jules
    I can't believe I'm still confused about this but, any way, lets finally nail it: I have a class that overrides OnPaint to do some drawing. To speed things up, I create the pens, brushes etc before hand, in the construtor, so that OnPaint does not need to keep creating and disposing them. Now, I make sure that I always dispose of such objects, but I have the feeling I don't need to because, despite the fact they implement IDisposable, they're managed objects. Is this correct?

    Read the article

  • Authenticating to Google Search Appliance using Basic HTTP auth and ASP.NET (VB)

    - by Chainlink
    I've run into a snag though which has to do with authentication between the Google Search Appliance and ASP. Normally, when asking for secure pages from the search appliance, the search appliance asks for credentials, then uses these credentials to try and access the secure results. If this attempt is successful, the page shows up in the results list. Since ASP is contacting the search appliance on the client's behalf, it will need to collect credentials and pass them along to the search appliance. I have tried a couple of different documented ways of accomplishing this, but they don't seem to work. Below is the code I have tried: 'Bypass SSL since discovery.gov.mb.ca does not have valid SSL cert (NOT PRODUCTION SAFE) ServerCertificateValidationCallback = New System.Net.Security.RemoteCertificateValidationCallback(AddressOf customXertificateValidation) googleUrl = "https://removed.com" Dim rdr As New XmlTextReader(googleUrl) Dim resolver As New XmlUrlResolver() Dim myCred As New System.Net.NetworkCredential("USERNAME", "PASSWORD", Nothing) Dim credCache As New CredentialCache() credCache.Add(New Uri(googleUrl), "Basic", myCred) resolver.Credentials = credCache rdr.XmlResolver = resolver doc = New System.Xml.XPath.XPathDocument(rdr) path = doc.CreateNavigator() Private Function customXertificateValidation(ByVal sender As Object, ByVal certificate As System.Security.Cryptography.X509Certificates.X509Certificate, ByVal chain As System.Security.Cryptography.X509Certificates.X509Chain, ByVal sslPolicyErrors As Net.Security.SslPolicyErrors) As Boolean Return True End Function

    Read the article

  • how to invoke onclick function in html from vb.net or C#

    - by vbNewbie
    I am trying to invoke the onclick function in an html page that displays content. I am using the httpwebreqest control and not a browser control. I have traced the function and tried to find the link it calls but looking at the code below I tried inserting the link into the browser with the main url but it does not work. <div style="position:relative;" id="column_container"> <a href="#" onclick=" if (! loading_next_page) { loading_next_page = true; $('loading_recs_spinner').style.visibility = 'visible'; **new Ajax.Request('/recommendations?directory=non-profit&page=**' + next_page, { onComplete: function(transport) { if (200 == transport.status){ $('column_container').insert({ bottom: transport.responseText }); loading_next_page = false; $('loading_recs_spinner').style.visibility = 'hidden'; next_page += 1; if (transport.responseText.blank()) $('show_more_recs').hide(); } } }); } return false; Any ideas would be deeply appreciated.

    Read the article

  • ASP.NET VB.NET GridView adding anchor tag to a cell

    - by user3036965
    I have an GridView control with some data in the first cell throughout the column. Ineed to make that cell data into a hyperlink (anchor tag) like the following. <a href=""myPage.aspx?r=" & strParam & """>" & strData & "</a>" Can anyone advise on the most effective way to do this? I am using a datatable and then assigning the datatable to the gridview. Any advice would be greatly appreciated. I need to use the Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs). So I could add a hyperlink whatabout getting the parameters into the RowDataBound event is where my skills are falling down. Thank you

    Read the article

  • DataGridView in VB.net will not allow me to update

    - by Marc
    I have a datagridview with a dataTable as the dataSource. The user can add new rows to the datadridview, but I dont display the primary key column (for obvious reasons) and set it to .visible = false. When I need to update the information in the datagridview to the database, I use the sqlClient.SqlCommandBuilder to then update the underlying datasource (the dataTable mentioned above). Now, because the hidden column is the primary key, I loop through the datagridview and programically add the required primary key field to each new row that does not already contain a primary key (user added rows). This works great 95% of the time... The problem is when the user somehow gives focus at some point (any point) to that bottom row on the datagridview, below their added rows, that is used to add new rows. The update command gives me an error stating that it cannot insert null into the primary key field, even though when checking all the values in every row, it is definitely NOT null for any of them. I have tried to trap for row.isNewRow (as the field never shows null) and deleting that row, but I get an error stating I can not delete an uncommitted row. If the focus is never given to that empty row beneath the existing rows and user added rows, the update works fine. What is going on?!

    Read the article

  • vb.net .aspxauth

    - by Morgan
    I am working with a large site trying to implement web parts for particular users in a particular subdirectory but I can't get the .ASPXAUTH cookie to be recognized. I've read dozens of tutorials and MS class library pages that tell me how it should work to no avail. I am brand new to Web parts, so I'm sorry if I'm unclear. The idea is that logged in users can travel the site, but then when they go to their dashboard, they are programmatically authenticated using Membership and FormsAuthentication to pull up their Personalization. When I step through the code, I can see the cookie being set, and that it exists on the following page, but Membership.GetUser() and User.Identity are both empty. I know the user exists because I created it programmatically using Membership.CreateUser() and I can see it when I do Membership.GetAllUsers() and it's online when i use Membership.GetUser(username) but the Personalization doesn't work. Right now, I'm just trying to get the proof of concept going. I've tried creating the ticket and cookie myself, and also using SetAuthCookie() (code follows). I really just need a clue as to what to look for. Here's the "login" page... If Membership.ValidateUser(testusername, testpassword) Then -- Works FormsAuthentication.SetAuthCookie(testusername, true) Response.Redirect("webpartsdemo1.aspx", False) End If And the next page (webpartsdemo1.aspx) Dim cookey As String = ".ASPXAUTH" lblContent.Text &= "<br><br>" & Request.Cookies(cookey).Name & " Details" lblContent.Text &= "<br>path = " & Request.Cookies(cookey).Path lblContent.Text &= "<br>domain = " & Request.Cookies(cookey).Domain lblContent.Text &= "<br>expires = " & Request.Cookies(cookey).Expires lblContent.Text &= "<br>Secure only? " & Request.Cookies(cookey).Secure lblContent.Text &= "<br>HTTP only? = " & Request.Cookies(cookey).HttpOnly lblContent.Text &= "<br>Has subkeys? " & Request.Cookies(cookey).HasKeys lblContent.Text &= "<br/><br/>request authenticated? " & Request.IsAuthenticated.ToString lblContent.Text &= " Getting user<br/>Current User: " Dim muGidget As MembershipUser If Request.IsAuthenticated Then muGidget = Membership.GetUser lblContent.Text &= Membership.GetUser().UserName Else lblContent.Text &= "none found" End If Output: .ASPXAUTH Details path = / domain = expires = 12:00:00 AM Secure only? False HTTP only? = False Has subkeys? False request authenticated? False Getting user Current User: none found Sorry to go on so long. Thanks for any help you can provide.

    Read the article

  • Runtime Error 424 Object Required

    - by Luis
    Hey so I get this error in this code: Private Sub Request_Stuff_button_Click() Call Main.createObjects Call My_Control.requestStuff End Sub at the 'Call My_Control.requestStuff' line. The 'Main' module looks like this: Public My_Control As ControlObject Public Sub createObjects() If My_Control Is Nothing Then Set My_Control = New ControlObject End If End Sub The weirdest thing is that when I add Dim x As Integer x = My_Control.dummyInt right before the line that gets me the error, x gets the correct value right before the error happens which means My_Control is definitely an object and is definitely not nothing. This error is killing me, thanks in advance.

    Read the article

  • Calling a generic function in VB.NET / C#

    - by Quandary
    Question: I want to call a generic function, defined as: Public Shared Function DeserializeFromXML(Of T)(Optional ByRef strFileNameAndPath As String = Nothing) As T Now when I call it, I wanted to do it with any of the variants below: Dim x As New XMLserialization.cConfiguration x = XMLserialization.XMLserializeLDAPconfig.DeserializeFromXML(Of x)() x = XMLserialization.XMLserializeLDAPconfig.DeserializeFromXML(GetType(x))() x = XMLserialization.XMLserializeLDAPconfig.DeserializeFromXML(Of GetType(x))() But it doesn't work. I find it very annoying and unreadable having to type x = XMLserialization.XMLserializeLDAPconfig.DeserializeFromXML(Of XMLserialization.cConfiguration)() Is there a way to call a generic function by getting the type from the instance ?

    Read the article

  • VB.Net Validate an xml against a schema (strange problem)

    - by Apeksha
    I have written a small XML validator, that takes in an XML file and an XML schema and validates the XML files against that schema. It works well, except for an XML file, with this content: <?xml version="1.0" encoding="utf-8"?> <xc:program xmlns:xc="http:\\www.something.com\Schema\XC10" xc:version="4.0.22.0" > <xc:namespaceDecls> <xc:namespaceDecl xc:namespaceDeclURI="urn:swift:xsd:abc"> <xc:namespaceDeclPrefix>n</xc:namespaceDeclPrefix> </xc:namespaceDecl> </xc:namespaceDecls> </xc:program> I tried to validate this XML file against a bunch of different schemas. No matter which schema I select, this XML file comes out as valid. What is it that I am missing? Here is the relevant piece of code: 'Create a schema cache and add the given schema to it. Dim schemaCache As New Schema.XmlSchemaSet schemaCache.Add(targetNamespace, schemaFilename) 'Create an XML DOMDocument object. Dim xmlDom As New XmlDocument 'Assign the schema cache to the DOM document. 'schemas collection. xmlDom.Schemas = schemaCache 'Load selected file as the DOM document. xmlDom.Load(xmlFilename) xmlDom.Validate(AddressOf ValidationCallBack)

    Read the article

  • VB.net Saving an MetaFile / EMF as a bitmap ( .tiff)

    - by pehaada
    Currently I have a third party control that generates a Metafile. I can save the .wmf file to disk with out issue. The problem is how do I render the Metafile as a Tiff file. Currently I have the following code to get my metafile and save it. Dim mf As Metafile = page.GetImage(TXTextControl.Page.PageContent.All) Dim enhMetafileHandle As IntPtr = mf.GetHenhmetafile() Dim h As IntPtr Dim bufferSize As UInteger = GetEnhMetaFileBits(enhMetafileHandle, 0, h) Dim buffer(CInt(bufferSize)) As Byte GetEnhMetaFileBits(enhMetafileHandle, bufferSize, buffer) Dim msMetafileStream As New MemoryStream msMetafileStream.Write(buffer, 0, CInt(bufferSize)) Dim baMetafileData() As Byte baMetafileData = msMetafileStream.ToArray Dim g As Graphics = Graphics.FromImage(mf) mf.Dispose() File.WriteAllBytes("c:\a.wmf", baMetafileData) end sub _ Public Shared Function GetEnhMetaFileBits( ByVal hEMF As System.IntPtr, ByVal nSize As UInteger, ByVal lpData As IntPtr) As UInteger End Function <System.Runtime.InteropServices.DllImportAttribute("gdi32.dll", EntryPoint:="GetEnhMetaFileBits")> _ Public Shared Function GetEnhMetaFileBits(<System.Runtime.InteropServices.InAttribute()> ByVal hEMF As System.IntPtr, ByVal nSize As UInteger, ByVal lpData() As Byte) As UInteger End Function I've tried all sort of IMAGE and Graphic calls and just can't save the meta file as a .tiff. Any suggestions would be great. I even tried to create a new bitmap and draw the metafile onto it. I always end up with a GDI exception being thrown.

    Read the article

  • VB.NET Folder location

    - by PandaNL
    Hello, My program uses some external programs that i included in the Files folder. In my code im reffering to Files/external_program.exe Windows Vista & Windows 7 knows how to handle this and starts the program on the same location as my program in the Files folder. But Xp doesnt know where it is, and Windows XP will think im reffering to the C:\Files folder. So im getting an error and the app crashes. How can i fix this? so windows xp will know that i'm reffering to the Files folder on the same location as my program.

    Read the article

< Previous Page | 25 26 27 28 29 30 31 32 33 34 35 36  | Next Page >