I have a data set in the User control . It was working fine but now when I started using another copy of the user control it started showing error DataTable internal index is corrupted: '5'.
dim dv as dataview
dv = new dataview(ds.tables("Names")
dv.rowFilter ="CatNum ='"& val&"'" 'This will always give one row only
dv.item(0)("Names") = myvalue ' here the exception is occurring
I know this is old hat, but when you're faced with a problem you cannot solve yourself, you need to find someone with the correct answer.In short, go to the wise.
I am working on an application that has a lot of records, and it uses a listbox control bound to a binding source attached to a table in a data source.A new record with data is added to the binding source's attached table, and, of course, to the underlying sqlServer database table:
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<p style="margin:0cm 0cm 0pt"><span style="font-family:Calibri; font-size:small">Im Anhang finden Sie ein VB-Programm zur Reproduzierbarkeit des Fehlers „Data Table Internal Index Is Corrupted 5".</span></p><p style="margin:0cm 0cm 0pt"><span style="font-family:Calibri; font-size:small">Folgende Schritte sind durchzuführen:</span></p><p style="margin:0cm 0cm 0pt"><span style="font-family:Calibri; font-size:small">Entzippen in ein geeignetes Verzeichnis</span></p><p style="margin:0cm 0cm 0pt"><span style="font-
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Is it possible to have an internal XML dataset within a VB 08 program I ask because we at present have the program load an external XML on startup, but i would prefer this to be internal withing the program to stop other editing the XML file.
View 6 RepliesI have an ImageList and load some pictures with the following names for example:
uk.gif
us.gif
uy.gif
uz.gif
va.gif
And so forth...I can see the name of each icon in the Images Collection Editor, but not from code.how can I get the image NOT BY INDEX but by the name of internal image?For example get the image from ImageList by "us.gif"?
Is it possible to get the row index of a DataTable so that you can access the previous and next row? For example I have a DataTable that contains two columns ChapterTitle and PageURL. This is for a table of contents of a book. ChapterTitle is the chapter name and PageURL is an HTML page that contains the chapter (chaptername.html). When going into one chapter of the book I want to be able to tell which is the next and previous chapter.
After finding the chapter that I'm currently in how can get the next and previous rows?
ChapterTable.Select("PageURL = '" & PageURL& "'")
How can i get the index of an element in datatable which i got using the select method of datatable as
dim d as new datatable= 'some data source'
dim dr() as datarow
dr=dt.select("some condition")
now i want to find the index of first or second item which i have retrieved in data row. i mean there index in data table with out use of loops as loops take a lot of time when there is huge data in data table.
I am wanting to update a datatable which is been created dynamically. Each row has a unique Id column. How can I retreive the row and update a column in it using the Id column
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I understand that DataTable.Select() returns an array of rows. I just want to know whether these is a way to get the row indexes as well.
View 4 RepliesI have a datatable with 10 records linked to a datagridview. When I initially load the datagridview, row 0 in the datagridview = row 0 in the datatable - based purely on the order they load, and the datatable's default sort order. I then filter my datagridview and am left with 5 records. Is there a way of determining programatically, the actual datatable row number of a row displayed in a datagridview, considering that row 0 in the datagridview is now not necessarily row 0 in the datatable?
View 6 RepliesIn a DataTable object, is there added overhead to looking up a column value by name thisRow("ColumnA") rather than by the column index thisRow(0)? In which scenarios might this be an issue. I work on a team that has lots of experience writing VB6 code and I noticed that didn't do column lookups by name for DataTable objects or data grids. Even in .NET code, we use a set of integer constants to reference column names in these types of objects. I asked our team lead why this was so, and he mentioned that in VB6, there was a lot of overhead in looking up data by column name rather than by index. Is this still true for .NET?
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I have a question related with VB.Net Code. I see that the DataTable we can use: DataTable(0)'This return a DataRow with the selected index In the intellisense I see that this functionality can achieve with a extension... but, If I create a extension, always I need refer the Extension before to use it
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When i load my database i load it into a DataSet.When i search the database i load the results in to a DataTable.I want to find what index a search result has in the DataSet.When navigating the dataset i can use this code to get the index ds.Tables"Filmer").Rows.IndexOf(ds.Tables ("Filmer"). Rows(inc))But i can't make i get the dataset index of a search result from the DataTable.I thought that i could use the same code when navigating the DataTable, but it only returns.
View 3 RepliesI need to sort a datatable. I do it with linq this an example
Dim query = From c In dt.AsEnumerable _
Order By c.Field(Of DateTime?)("LastPurchaseDate"), _
c.Field(Of String)("LastName") Descending
Dim dv As DataView = query.AsDataView
But my problem is that i need to sort the fields not by passing the name of the column but the index of that.
i have two datragridviewcomboboxcolumn,and two textbox column in a datagridview.each combobox column is binded to separate binding source.
column names are sl_no,col_empname,col_empworktype,Col_Hours etc.and
displaymember,datapropertyname,valuemember and for comboxcolumn are
col_empname:-emp_name,emp_id,emp_id
col_empworktype:-worktypename,worktypeid,worktypeid
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I've been having a very odd problem when creating zip files in vb.net. They are ok when I run the code and save the file locally. However, if I run the program via remote desktop, and then save locally, the zip file is corrupted, and will not open (message "cannot open file:it does not appear to be a valid archive").I have tried opening it as a txt file, and found that there is a load of HTML at the bottom of the corrupt version, that the non-corrupt version does not have. Anyone got any idea how this extra HTML might have got there?[code]
View 2 RepliesI keep getting the following error message when I run my vb.net web app:The state information is invalid for this page and might be corrupted.After a good search, I came across this Microsoft page, which describes the problem exactly. The likely cause seems to be "scenario 2":[code]I appear to have prevented this error from happening by using EnableEventValidation="False" in the Page node of the markup as recommended here.
View 2 RepliesI got a CRC checksum now and I get a Message in this Format SOH, Length Of Incoming Message, Message, CRC Checksum So I have a nice little look to processes the message and everything, Now I have questions on two events, While this loop is running it awaits for Data on the wire to come through and Checks for the SOH, I always get that but what are the chances of NOT getting a SOH, and if I don't what should I do with the Buffer Dump everything Till I come to another SOH? And on another scenario If two Packets are clashed together in one buffer should I always try to Peek and see if the Next byte after the CRC is a SOH to see if there is more Bytes and an whole another command to start Parsing and then take action?
View 4 RepliesI've been getting wierd errors due to what appears to be compiler side errors, based on a corrupted compile that the compiler keeps using until i do something drastic like copy an entire module or function into noteback text editor, save my code, restart VB 2010, and paste it back in.[code]you may ask yourself, why do i even bother having the select case statement in the loop?c1 never gets high enough in the loop for your select case statement do anything (case: 99999, moreover u make c1 = itself, so there is no change in c1's value) The answer is that at one point i was making the select case statement do something, but when i tried to delete the entire select case statement, execution would simply fall through the loop.The for loop would only execute once.It would only do this with "optimizations enabled" outside of the debugger.Inside the debugger it worked fine, but every time outside of the debugger it would only execute once UNLESS i kept the meaningless select case statement in there.
Then, not wanting to see it there any more, i tried deleting the entire function (copying the text to notepad), recompiled (delete the calling line for the function), saved, exited, restarted systems (tried restarting system many times b4, but not b4 doing all this), opened VB, delete the select case statement out of notepad, copied the edited function from notepad to VB, recompiled and magically it finally worked.Understanding a little about optimization at machine lvl coding it appears the next c1 was optimized out by the compiler, instead using the end select statement to loop back to the top of the for loop.However, upon deleting the select case statement, it never reintroduced a loop back at the "next c1" statement, casuing execution to fall through.i've noticed this error occur about half dozen times (in other forms: by error i mean the comiler saving an optimization, but when the code that prompted the optimization is deleted, the compiler is not able to properly undo the optimization) while building my program, and my suggestion (rather than hunting down each of these errors), is to force the compiler to rethink the logic of of the program from scratch (which is what i thought it did already everytime i hit compile), but these experiments make me think its saving an error some where that only copying the function to note-pad and back again could make it purge.
I was working on project when i noticed all of my changes on my project wont update when i run the or build it. I also tried to publish, delete forms maybe the form is corrupted but no luck.
View 2 Repliesi'm using the code below to display a tutorial about my application, the problem is that when it display it seems to corrupt certain letters. i have attached an image for you to have a better understanding. I'm creating the manual in MSWord2007 and saving it as "Single File Web Page". The file get corrupted on the second 'Using'.
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I'm using vb.net 2003 and I've tried to generate a report in Excel using POI, but I have a problem when the records is above 2000, cell formats has been missing or corrupted for the next 2000 and above records. And when I'm opening the generated report and It shows a message of "To many different cell formats" and the next message is "Excel encountered an error and had to remove some formatting to avoid corrupting of workbook. Please re-check you formatting carefully." Can anyone help me on how to fix it or can anyone else have an another idea for me to format all does cell whether it's 2000 records an above. [code]
View 2 RepliesIt's working kinda, but at the end when transfer is finished the file on the ftp is corrupted. I found about 3 ecamples online with this class and they all give me the same corruption
Code:
Imports System.Net
Imports System.IO
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I am presently using VB2010 to develop charting application. I have noticed that whent he applications are developed on my hp dv7-2270us notebook and stored on an external harddrive, if these same applications are then opened on my dell latitude d610, i will recieve a corrupted external harddrive error. Usually this can be repaired with check disk.
View 1 RepliesI write text to a file using StreamWriter as shown below several times a second. The problem I have is that sometimes these files are left blank after my program has crashed or the computer has crashed. I've done several searches on the internet without any results other then writing to a second file, copying over the file and then deleting the extra file when done. If this method doesn't have any error modes it still appears to be less then a beautiful solution. (What happens if the computer crashes when writing over the original file?)Is there a more secure method for writing the text file that doesn't leave it vulnerable? This happens way too often. I never find errors related to file writing. I really want this code to be reliable enough that I could just pull the plug on the computer
Try
Dim mSW As IO.StreamWriter = New IO.StreamWriter(countFile, False)
mSW.WriteLine(CStr(totalCount))
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I seem to be having some problems with my projects for school. I use Visual Studio 2010 on Windows 7 Professional at school and I do my homework on Visual Studio 2010 with WinXP SP3 (fully updated) at home. When I move the project files back and forth the projects become corrupted. I get the following problems.Form controls move or properties do not work as they are specified in the property box such as:
Link label with the property set to hoverUnderline text.Labels that move position.I also get x86 errors that show up during a Debug or Build, such as:x86 Only one reference to Resources is allowed.I need to be able to work on both my WinXP SP3 (fully updated) machine at home and use the schools Win7 Professional machine to both complete projects and get my project graded.
This is a problem with MS Access, but I can't seem to find an MS Access Forum, so I'm asking it here.I have a large table of just one field. The field type is Byte. I use CTRL C and CTRL V to make a copy of the table.I then compare the Source and Destination tables and lo and behold they are different at about record number 8 million.I also tried an Append Query to append to an empty table (I haven't tried a Make Table query).But, similar corruption.The source and destination tables do not end up the same. The Record where the failure occurs varies, but it is always greater than 8 million.I tried this on MS Access 2002 and 2010 (both with an Access 2002 database).
View 1 RepliesI just published this simple console application that is supposed to show a textbox with the value of a setting called "userID" with value 1001. This works like a charm. Now what I need is to change this value outside the editor, from notepad etc. When I open the application a lot in there is non-sence etc. but with a quick (ctrl + F) I found the value 1001, and changed this to some other integer.
I ran the application again, and it failed, didn't even give any userful error-message. At a point I tried just opening a newly published non-corrupted version of the application, didn't change anything, then saved from notepad, and it were also corrupted. It seems like notepad can't open some characters or something. Do I need to publish the application in some specific text-unicode language or something? I use vb.net for this
I'm using the System.IO.Packaging namespace to compress a file. I'm getting an error that says 'file contains corrupted data'. So i tried using a txt file with just a few characters, and I got the same error. I read where someone said to make sure you have all streams closed and I checked this and do so I'm not sure what to try now. Here is my code.
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After inserting an user control and double clicking on it, a stub with the default event should appear.
If I don't define what the default event is and I don't assign any attributes to any events or properties, it works, and it generates the stub for the UserControl.Load event (the default default event).
But if I set some attributes for the properties and events and/or I define the default event, the stub generated is corrupted. Here is an example of what I should get:
Private Sub FaceSelector_OnSelect(SelectedObjects As System.Collections.ObjectModel.Collection(Of Object)) Handles FaceSelector.OnSelect
End Sub
And this is what I actually get: Private Sub SketchSelector_OnSelect( SelectedObjects As System.Collections.ObjectModel.Collection`1)
End Sub
Private Sub FaceSelector_OnSelect( SelectedObjects As System.Collections.ObjectModel.Collection`1)
End Sub
In this case I had 5 user controls, I double clicked on one of them, and I got 2 corrupted stubs.
Sometimes the corrupted stubs are generated when I change some properties of other controls in the form, or the form itself. For example I resize the form, the error window doesn't show any errors, hit F5 to compile and run, and get a syntax error.
I tried to track the problem down by removing each event/property attribute/xml description, one by one, many times I thought I found the culprit, but after 10 minutes the problem popped up again.