Office Automation :: Method Not Found: Void Excel.Range.set_Value(System.Object,System.Object)
Mar 11, 2009following error message:
Method not found: Void Excel.Range.set_Value(System.Object,System.Object)
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Error - LINQ To Entities Does Not Recognize The Method 'System.Object IIf(Boolean, System.Object, System.Object)'
Jul 29, 2011I am getting following error whenever I want to use IIf function inside entity framework query.
LINQ to Entities does not recognize the method 'System.Object IIf(Boolean, System.Object, System.Object)' method, and this method cannot be translated into a store expression.
Method 'System.Object CompareObjectEqual(System.Object, System.Object, Boolean)' Has No Supported Translation To SQL.?
Apr 16, 2010What do I need to convert?
Dim CEESearchByAppNo = From CEEsearch In dbCEE.tblScanneds _
Where CEEsearch.AppNo = iAppNo
[code].....
Exception Found - Cannot Access A Disposed Object. Object Name:'System.Net.Sockets.NetworkStream'
Dec 31, 2009Occasionally I encountered this exception message while trying to download file from a server using System.Net.FtpWebRequest and System.Net.FtpWebResponse Object.
Download a file.ftpRequest_DL.Method = WebRequestMethods.Ftp.DownloadFile get the response object
Dim ftpResponse_DL As FtpWebResponse = CType(ftpRequest_DL.GetResponse, FtpWebResponse)
[Code]...
Excel Find Method - System.Reflection.Missing Object
Dec 14, 2010I have tried several versions of this with no luck. The casting of the worksheet works as my data is entered in other parts, but I have a section where I need to add data 1 column right of the cell containing the 'str(0)' value. Most of these parameters are optional. I have even tried the System.Reflection.Missing object.
[Code]...
Office Automation :: Excel File - Set A Reference To The Microsoft Excel 12.0 Object Library
Oct 6, 2009I'm trying to upgrade a VB6 app to VB 2008. I have read the article in the tutors corner about automating Excel from VB but I cannot get it to work. Heres what I have done:
1) set a reference to the Microsoft Excel 12.0 Object Library
2) Added "Imports Excel = Microsoft.Office.Interop.Excel" to the top of the module
3) in a routine I have added: Dim X As New Excel.Application Here's where I get an error: Error 75 'Application' is ambiguous in the namespace 'Microsoft.Office.Interop.Excel'.
Office Automation :: Code Hangs When An Excel File Is Opened To A Excel Workbook Object?
Aug 3, 2009I use the following code snippet
Dim exlapp As New Microsoft.Office.Interop.Excel.Application
Dim xlWorkBook_new As Microsoft.Office.Interop.Excel.Workbook
Dim strOriginal As String
strOriginal = Server.MapPath(Request.ApplicationPath & "/Attachments/") & "abc.xls"
xlWorkBook_new = exlapp.Workbooks.Open(strOriginal)
The code hangs in the last line. It works fine in the development environment. i deployed in windows server 2000 ,where I get this issue. the browser goes half way and throws the below exception after some time
[Code]...
I have set the identity impersonate to true in web config. This should be mostly an access rights issue.I have even provided access rights for the "everyone " user in the excel file and as well for the interop component. Please post ur valuable comments.
Office Automation :: Excel Object Library 10.0 Versus 11.0 Version?
Jan 6, 2012I have 2003 xls file which is saved on a web share point. File combines vbs functionalities, of which one is uploading data to this file (from another file on the same share point) by clicking command button.When I open file from my location it all functionalities are working without problems. My customer is running it from his location, he is also using Excel 2003, the moment he wants to upload the data he gets the bug.
Message: Method "Worksheets" of object "_Global" failed
I checked and it seems that in the references he has 10.0 object library and I have 11.0 What i can do to unify the coding so it is indifferent from Object Library version?I have read about late va early binding, I guess i'm using late binding I also check that i can adjust late binding buy standard codes.
Dim oExcel As Object
Dim oWorkbook As Object
Dim oWorksheet As Object
[code]....
Office Automation - Excel Range References
Apr 22, 2010I want to define a range in Excel, but I do NOT want to use "A" or "D" references for columns. I am making a table, and to set it's range I use:
Code:
.Range("A1:D4")
However, at the time i write the code I do not know how many columns will be involved, so I don't know if "D" is the end column. For rows this is fine, as i could write this:
Code:
.Range("A" & i & ":D" & j)
But how do I do this for columns? I really would rather not have to convert my integer number for the end column to text. If I know that the table should go from row 1 to 5 and column 1 to 10, how to I select this range?
Office Automation :: Excel Range Into A .NET Array?
Jan 10, 2011I have formulas in certain cells and happens to be part of the Excel range that I pull into a vb.net array and when I write the array back out to the Excel Range, I loose all the formulas in it.Is there an option to retain formulas in a .net array?
View 3 RepliesOffice Automation :: Find A Text In An Excel Range Using VB 2008?
May 12, 2010In VBA I am able to search a text in an excel range like this:
Code:
Workbooks("Book1").Activate
With Worksheets(1).Range("C1:C10000")
[code].....
I have upgraded to Visual Studio because of the jobs I am to carry out. So I am translating all the codes from "VBA" to "VB.NET" (Visual Basic 2008)But I haven't been able to use "Find Method" in VB.NET. I am using Microsoft Office XP Standart Edition (2002 Version). I downloaded and installed Office XP PIAs. After that I referenced them in my project. I used the code Code:Imports Microsoft.Office.Interop.ExcelBut I can't do what I want Now, how can I use "Find Method" in Visual Basic 2008 to find a text in an excel range in one of my workbooks?
Office Automation :: Word2007 Automation Without Word12 Object Library
Jan 21, 2012I've got VS2008 and Office2010, but I don't have Office2007. Therefore, I have the Word14 Object Library but not the Word12 Object Library. Will the code that I create for Office2010 automation also work where clients only have Office2007 or will they have to upgrade their office suites?
View 1 RepliesUse Extension Method On System.Object Instance?
Jul 12, 2010Can I make an Extension method for all the subclasses of System.Object (everything)?
Example:
<Extension>
Public Function MyExtension(value As Object) As Object
Return value
End Function
The above functions won't work for object instance:UPDATE The problem seems to occur only in VB, where members of object are looked-up by reflection (late-bound).UPDATE AFTER ANSWERED.FYI, as vb has an advantage that C# lacks that is, members of imported Modules are imported to the global scope so you can still use this functions without their wrapper:Dim myObj2 = MyExtension(myObj1)
Office Automation :: FindAll Matching Strings In Excel Range / Array?
Feb 12, 2012I am importing data from an Excel spreadsheet into an array. I want to search the array to find the location of each "cell" with text that contains a certain string (e.g. "MyTestString"). So far the best I can do is loop through each element and test it using CStr, but the code takes too long to execute (please assume all variables are properly declared):
[Code]...
(1) Is there a better way than looping through each element, such as a built-in function or a lambda that will return an array containing *the location of* all string matches?
(2) Would it be faster to convert the Object array to a String array rather than using CStr on each element? If so, what is the fastest way to convert a 2-dimensional Object array to a String array?
I've considered using Excel's Find function instead, but would prefer to limit the number of Interop calls to Excel.
Office Automation :: Use Common Worksheet Functions Found In Excel 2003?
May 3, 2010I'm trying to use common Worksheet functions found in Excel 2003 (average, standard deviation, etc) from within VS 2008. See thinned down sample code below:
Code:
Imports Microsoft.Office.Interop
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]....
When ran it returns "New cannot be used on an interface". Removing "New" returns "'WorksheetFunction' is a type in 'Excel' and cannot be used as an expression."
I've added a reference to the Microsoft.Office.Interop.Excel library v11.0.0.0, which I'm using in other places in the code with no complaints.
VS 2010 - Unable To Cast Object Of Type 'System.String' To Type 'System.Object[]'
Jan 25, 2011For I = 0 To 10
If Items.Count = 0 Then Exit For
Dim T As New Thread(AddressOf Thread)
T.Start(New Object() {"Test", "Test"})
[code]....
When I put same code in empty project it works.
.net - Invoking Interface Method Using System.Object Type Variable
Jan 6, 2011I have an interface ITest with a method GetResult(). I have a class Test which implements ITest and thereby defines private method GetResult().
Next I create an instance of Test in a different class. The code is as below:
Module NewClass
Public Sub New()
Dim i As ITest = New Test()
[Code]....
I am migrating existing code from VB 6 to VB.NET and hence I'm not supposed to change the access modifier of GetResult. Leaving it Private will throw InvalidCastException Unable to cast object of type 'System.Object' to type 'ITest'
Object type variable o is used in many places and hence I don't want to change that. And yes, Test implements ITest.GetMember with a different name.
LINQ To Entities Does Not Support The Method System.Object CompareObjectEqual?
May 31, 2011When I execute the code below I receive the error message: LINQ to Entities does not recognize the method 'System.Object CompareObjectEqual(System.Object, System.Object, Boolean)' method, and this method cannot be translated into a store expression.It seems to be occurring on the line For Each row2 in PCstudent.
[Code]...
Visual Studio 2010 - Return Value Of Method. System.__Com.object?
Apr 10, 2012I know it's a stupid question but I cannot find info about it.
Public Function TestFunc() As String
Dim lMapper = cRouter.StaticPortMappingCollection
Dim lMappedPort As NATUPNPLib.IStaticPortMapping
Dim Test As String
[Code]...
How to get this value? By my way I get *System.__ComObject*
Turn A Microsoft.Office.Interop.Excel.Chart Object Into A Microsoft.Office.Tools.Excel.Chart Object?
Aug 5, 2010Basically I've coded an Excel 2007 project in VB.NET 2010 that allows you to create charts with a fair amount of interactivity. I want the user to be able to save and reopen this workbook and still have that interactivity in any already-created charts, so they don't have to re-create them.
When I create the charts, I use Sheet1.Controls.AddChart(...), which returns a Microsoft.Office.Tools.Excel.Chart with which I can handle events and such. However, when I reopen the file and look through the Sheet1.Controls collection, there are no Chart objects. Accessing the charts through Sheet1.ChartObjects.Chart gives me Interop Charts, when I need the Tools Charts.
Unable To Cast Object Of Type 'System.Object[]' To Type 'System.String[]'
Apr 5, 2009i always get this error when i tried to update my table: Unable to cast object of type 'System.Object[]' to type 'System.String[]'.
i only want to update STATUS, ENDTIME, and PRICE
the data type of each field are:
STATUS = nvarchar
ENDTIME = smalldatetime
PRICE = money
[Code]....
Office Automation :: Modifying MS Chart Object In PPT Through .Net?
May 28, 2009I am new to this forum - and while I have programmed in VB.Net for some time, I am also new to Office Automation - so please bear with me We are creating a Metrics presentation in Powerpoint 2003.Currently, the presentation is manually created. We are automating this through VB.Net. I figured out how to add the slides from the template. I can modify text boxes and other objects other than the MS Chart objects. I can modify MS Chart objects - but find that after updating the chart, saving it, and closing the application - it apparently doesn't save correctly. When I reopen the presentation, it originally shows up with the changed data. Once I double-click it, however, it doesn't keep the modified data.
I looked at the properties of the graph in VB.Net - and it looks like the chart shape is read-only. I thought of two solutions - one: copy the chart, modify a local copy, and paste it over the original, or two: make the read-only chart writable. Problem is - I'm at a loss for how to complete both of these.As far as the copying of the chart, I found some information about using the .Copy() command, so I cam up with the code
[Code]...
Office Automation :: Release An Object Set By A Function?
Jul 27, 2009I set a range with a function like this:
Code:
Public Function GetRange(ByVal strCellRange As String) As Microsoft.Office.Interop.Excel.Range
Try
[Code]....
Unable To Cast Object Of Type 'System.EventArgs' To 'System.ComponentModel.CancelEventArgs'
Jul 11, 2012I have a text-boxes that use both the validating event as well as the lostfocus event.I have pinpointed the exception in the post title to the validating events.[code]Maybe I am unaware that CancelEventArgs are not suppose to be used in the validating event? [code]
View 4 RepliesOffice Automation :: Object Reference Not Visible In A Different Form?
Jul 24, 2011The problem with the following code is that the object oWB is visible and initialized in Form2, but when I show SaveDialog1, the object gives a NullReferenceException. I already know, because I checked in the debugger, that oWB has a valid reference when I leave Form2 and also when I come back from Form2. So I am sure the problem is that the reference simply is not visible in SaveDialog1 for some reason. So please don't tell me that the initialization of oWB returned a Nothing reference because I know it did not.
I get a NullReferenceException on the following line:
Form2.oWB.Save()
I researched this for a whole day and came up with a Microsoft article that explains that it is necessary to run each form of a .NET COM application on its own thread. It gave some code to accomplish this. I incorporated this code into my program. But I still have the NullReferenceException.
Simplified version of Code with most processing deleted below:
Public Class Form2
'Define Microsoft Excel Objects
Dim oXL As Excel.Application
[Code].....
Office Automation :: Print An Attribute Of The Object For The Arraylist?
Oct 15, 2009I am writing some code to bring in an arraylist. I want to print an attribute of the object for the arraylist (see red below). I cannot conclude how to get at it.
Code:
Public Sub drilldown1(ByVal DOC As IPDMWDocument)
' Drill-down levels from top level document
Dim f As String = "drilldown1"
.net - Process.start System.nullreferenceexception: Object Reference Not Set To An Instance Of An Object
Oct 16, 2011I am trying to start the process with the following parameters When I try to start it though I get an System.nullreferenceexception: Object reference not set to an instance of an object
Dim exepath As String = Application.StartupPath + "inffmpeg.exe"
Dim sr As StreamReader
Dim cmd As String = " -i """ + input + """ -ar 22050 -y """ + output + """"
Dim ffmpegOutput As String
[code]....
Error System.NullReferenceException Occurred - Object Reference Not Set To An Instance Of An Object
Jan 12, 2010i am using VB.net 2003 and i am trying to get the number of rows of a dataset from form1 into form2 in order to use it for something else and i am getting the error"System.NullReferenceException occured...Additional information: object reference not set to an instance of an object"...my code is like this:in form1:Public x as integer= me.dataset.table.rows.count here it gives me the error
in form2:
dim frm as new form1
msgbox(frm.x)
Error: System.NullReference Exception: Object Reference Not Set To An Instance Of An Object
Jan 5, 2010I am getting this error when I try to print my report. Here is my print code.
Private Sub PrintToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PrintToolStripMenuItem.Click
Dim Print_Dialog As New PrintDialog
[code].....
Here is my error: System.NullReference Exception: Object reference not set to an instance of an object.
VS 2008 Error - System.NullReferenceException: Object Reference Not Sent To An Instance Of An Object
Oct 23, 2009I have recently gotten my hands on a free, open-source IMAP connection API.So far, I have been successful in creating a connection to one of my accounts.Where I'm getting stuck is retrieving folders and/or emails from those folders.Does there happen to be anyone here that is familiar with this API, or even Gmail (particularly the folder structure for IMAP)?
If not, here is a link to the DLL that is listed on sourceforge and the company's website that created it (if you feel like testing):
Koolwired
Sourceforge - Koolwired API
I have created a test account so feel free to use the code below without worrying about username/password issues; I'll just delete it when I'm done with it.Here is the code I have made so far for making a connection:
Dim gSession As New Koolwired.Imap.ImapConnect("imap.gmail.com", 993, True)
Dim gAuthenticate As New Koolwired.Imap.ImapAuthenticate(gSession, "imap_test@serysoft.com", "imap_test")
Try
[code]....
When I run that code, I get an error that states:System.NullReferenceException: Object reference not sent to an instance of an object. (The bold line in the above code).
Now, I'm not sure exactly what that means. Does that mean it tried to access the server and "INBOX" doesn't exist so it gets returned a NULL value? Or is it possibly the coding itself?Maybe the Gmail folder system is weird due to the fact they use labels (even though from what I have read online, the labels act as the folders in the IMAP system).