Getting Data From Database Some Time GUID Order Is Mixed Up?
Jun 25, 2010I am using GUID for uniqueness (Guid.NewGuid.ToString), but while getting data from database some time GUID order is mixedup.
View 1 Replies
ADVERTISEMENT
Pull A GUID From Database In Order To Update A Username?
Jul 13, 2010I have a SQL database that is different than the one in ASP.net so I had to create a custom membership Provider. The provider to get the user looks like this:My SQL class name is CustomSqlProvider:
Public Overrides Function GetUser(ByVal username As String, _
ByVal userIsOnline As Boolean) As MembershipUser
'Dim connectionString As String = "Server=***;Database=***;User Id=***password=****"'
[code]....
After adding those gets and sets and assigning parameter variables to my Sproc parameters I get the following error: "Reference not set to an instance of an object." at this line of code:
Dim currentUser As MembershipUser = Membership.GetUser()
Dim UserId As Guid = CType(currentUser.ProviderUserKey, Guid)
And this is what I have on the UserInfo.aspx.vb Page under the Button click:
Dim sql As New SqlClient.SqlCommand("Update_User", con)
sql.Parameters.Add("@UserId", SqlDbType.UniqueIdentifier).Value = UserId
sql.Parameters.Add("@UserName", SqlDbType.NVarChar).Value = txtUserName.Text
GUID In Registry - Get The Program To Preform This Task On Another Computer As Their GUID Will Be Different?
Feb 26, 2012im workin on a task that will get the current computers Default Gatway, So i chose the easiest option, using the Registry, in most cases i find this with no problem at all, here's the code im using right now,
Public sHost As String = My.Computer.Registry.GetValue _
("HKEY_LOCAL_MACHINESYSTEMControlSet001servicesTcpipParametersInterfaces THE GUID NEEDED HERE ", "DhcpServer", Nothing)
Which works fine, if i put My GUID in where i've stated in above code, I get the right value ect..., no what i was woundering is how would i get the program to preform this task on another Computer as their GUID will be diffrent, if their away i can do this with simplicity?
Data In MS Access Database Our Of Order With VB 2010 Interface
Jun 20, 2012VB 2010 Express + MS Access 2003
today I successfully configured an interface to work with a test database I created in MS Access 2003. The database consists of only 8 records with 10 fields.
I used the basic built-ins with VB 2010 to build the interface in a simple form which shows only 6 of the 10 fields. It all seems to work well, that is the connection string built correctly, and I can run the program and view the individual records. My trouble is that when it goes to the 1st record it's actually the 3rd record in the database. And when I go to the last record it's actually the 2nd record in the database and the next to the last record is actually the first record in the database.
why the program seems to start at the 3 record and shifts the first two records to the end. All the records show up, it's just that they are somewhat out of order.
Displaying SQL Server Database Data In A Sort Or Sequential Order?
Mar 5, 2012I am getting data from an SQL Server database and displaying the data on a Windows form.How do I navigate through the data in a Sequential Order or Sort Order using the the REP_ID number? Example: When I use the navigation to move from one data to the other, can I go from; example: 100001 to 100002 and so on?
Finally is there any hint as to why I am getting the time with the dates? I know it is converted to text but not sure how to remove the time and just get the dates.Here is the entire project code:
Imports System.Data
Imports System.Data.SqlClient
Public Class frmBindingData[code]......
Re Order Column Order In A Data Bound DataGridView?
Apr 17, 2010I have a databound Datagridview. The DGV is bound to a datatable of a strongly typed DataSet created using the wizard. Is there any way to re order the columns before displaying them eg: the Columns are displayed in the DGV in this other Col4, Col6, Col3, Col1,Col5, Col2
But I want to it to show as Col1, Col2, col3, Col4, Col5, Col6?
I realise that the display order followed the Column order in the database table and by extension, the datatable. I have re-arranged the columns in the Database but the Datatable still retains the old order.
Retrieving Assembly Info "GUID" At Run Time?
Feb 9, 2009I have the need to retrieve the GUID that is listed in the "Assembly Info" page of the Project Properties.How can I get this data at run-time?(I've looked in the My.Application.Info, but it isn't in there that I can see)
View 1 RepliesRetrieve Data From Database One Time?
Nov 25, 2011can only retrieve data from database one time with read code:
While reader.Read
RichTextBox1.AppendText(reader.GetString(0))
End While
Getting Data From MS Access Database Using Date/Time?
Apr 11, 2012Dim purchasedatetime As Date = Now
chasedatetime2 = purchasedatetime.AddSeconds(50)
Dim subtotal As String
[code].....
Read Data From A Database At An Time Interval?
Feb 24, 2009I like to update data from an access database every 100ms. This works fine, but it does not look good on the screen. It refresh the whole screen on my laptop and it is not looking good. Is it a good way of updating data without getting this disturbanses in the screen?
View 1 RepliesStore Data Time Picker Into Database?
Apr 17, 2011I want to store date time picker into database .I am using date to search my reservation information and how is the code for search out the information from database.
View 4 RepliesOverride Order By Date / Time?
Nov 15, 2011I have datagridview1 " order by data,Time" its working fine ,Now I am moving a row from DGV2 to DGV1 and how to override the Date,Time Order which is in DGV1 so only that row comes first.
View 4 RepliesCan Save Data To Access Database And In Access Database Field Set It To Date / Time
Jun 4, 2011I can save my data to access database and in the access database field I set it to date/time.But problem is when I get the value out from the database.. the format is always month/day/year hour:minutes:seconds example today: 5/2/2011 12:00:00..How to get the value into listview becoming May/2/2011 without the hour..Here's my code to get it from database ListView1.Items(i).SubItems.Add(dt.Rows(i)(14).ToString).The second problem is.When I would like to edit, how can the datetimepicker get the listview value ? [code] info: using access 2003 (.mdb) the Date of Birth field has been set into Date/Time.
View 2 RepliesHow To Keep Owner Drawn List Box And Preview The Data From The SQL Database At The Same Time
Apr 23, 2009i have an owner drawn list box which is connected to a SQL database source. When the list box is owner drawn, my list box is filled with the text "System.Data.DataRowView". When i turn off owner drawn it works perfectly.
The problem is, i need it to be owner drawn as it is a crucial part of my program. Is there a way of keeping my owner drawn list box and preview the data from the SQL database at the same time? Here is my code for the owner drawn part, most of this is irrelevant, just mainly look at the bottom bit where i print the string, with the variable 's' and 'drawstring':[code...]
Time To Call A Function To Change Data Being Returned From Database?
Jun 28, 2009I have two functions written in VB.NET:
1) The first function (call it GetValues()) returns values in a SQL database as a list via a stored proc. One of the fields is DateTimeSubmitted. All of this data is displayed on my webpage using a repeater control. It works fine.
2) The second function (call it NiceDate()) I created to change the DateTimeSubmitted to a nice date such as "one minute ago" or "yesterday".
My problem is I have no idea which is the best part of the process to do the conversion (at point of data extraction or in pageload etc.) or in fact how to do the conversion.
Database - Getting A "Unrecognized Guid Format" Error Message?
Jan 6, 2011Public Function GetPrinter(ByVal PrinterID As Guid) As DataSet
[code]...
Change The Order Of Property Serialization At Design Time In .Net?
Oct 21, 2009I have a class where it's problematic to relay on the properties being serialized in alphabetical order at design time.In other words, property Z must be serialized before property A.The problem arises because property property Z clears property A whenever it changes - which happens in InitializeComponent.I work around this problem by setting a FirstTime flag, but that seems messy.
View 2 RepliesIDE :: Format Order Of Controls Instantiated By Code During Run Time
Feb 3, 2009I am working on an application that requires buttons and links to be added during run time, it's a bit like a flow chart. The buttons are used to display information similar to a multi line text box, but I also use the click, double click and mouse events for these buttons. The links are drawn as label controls. My problem is that I want to control the format order of these controls with the buttons always being on the top layer and the labels one layer back so that when labels are added they aways pass behind the buttons. If this was done at design time it is very easy to use the menu Format > Order to get overlapping controls displayed the way I want. But, the controls placed on the form at run time do not have a Format or Order property.
View 1 RepliesReplace One Character At A Time In Order To Store Its Index
Mar 31, 2012I'm trying to replace one character at a time in order to store its index, therefore if the replace is used all characters are changed and I cannot keep the index of all characters.
[code]...
DB/Reporting :: Move Data (400 GB) Into Database Then Be Able To Run Various Algorithms Determining Correlations Of Time Series
Mar 12, 2012I'm faced with a (fun, actually) data mining problem; I have raw ASCII files from instruments, and I want to move that data (~400 GB) into a database, then be able to run various algorithms determining correlations of time series, etc. I would like to write the mining algorithms in Visual Basic (.net, VS 2010 right now), and be able to do visualizations with VB code I have in hand.On the nature of the data: think of a set of several thousand devices, each recording a measurement at a given interval - so I'm talking time-series vectors. It's not more complex than that - though I may have vectors with holes, etc. - not sure what problems of that sort lurk in the data.I spent today re-acquainting myself with VB.NET's interface to (in one case) a Microsoft Access database. What used to be fairly simple - DAO I think it was - involved tables, recordsets, etc (and that would likely be fine). Now I seem to be required to have a weird variety of generally useless objects, e.g. 'adapters', 'datasets', etc. The problem is that I know exactly what I need, and all this extraneous stuff just gets in the way (certainly in coding complexity and opaqueness, and likely in efficiency as well). If any of these mechanisms gave me a kind of virtual access to the entire dataset, and let me control caching parameters, etc.it might be great, but I found nothing along those lines. It seems like useless bloat, though I suppose it must be useful to someone.Anyway, I tried a number of different approaches, and none seemed at all aimed at what I need to do: efficiently do math on a large dataset. I can't believe I'm the first to have this problem, but I can find no useful wisdom out there. I'd be comfortable with pretty much any underlying database mechanism: MySQL, SQL Server, MS Access, but ideally something generally SQL based (I may eventually have to transition this entire system to draw from a client's SQL database, though that's not an overriding concern now). Other than that I want simplicity and efficiency. I thought my old ODBC techniques would work, and to some extent they do, though modifying tables seemed to have bizarre problems (no errors, but not modifications either).
I do have a fairly aggressive deadline to show some algorithm results, so my focus in the short term is to get something reasonable working *in* the short term - in other words, it's less important to me to pick the 'fastest' relational database than it is to pick a database that lets me focus on coding the algorithms, not working through tedious data access coding. If this db could be any smaller, I'd have tried to do it all 'in memory' at least for proving concepts; I don't want to have to learn an entire jargon and approach just to be able to retrieve data points.Perhaps I'll need to bite the bullet and just write something myself, a .dll perhaps just to save and restore large time series vectors. It seems a bit frightening to me that one would have to do this in this age, what with all the database systems out there, but I don't have much time to work through arcane interface logic.
Save Data In A Database Table While At The Same Time Sending Standard Template Email
Jun 9, 2012I haven't done any VB coding since school (15 years ago) but currently have a need to run what "sounds" a fairly simple app at work. I'm hoping some of you might be able to give me some pointers as to whether or not my idea is possible, and if it is, how best to approach it.
I work for a company where we send a number of standard emails to potential clients asking them to contribute to our magazine . if no response we then send a number of follow up emails. each and every time I send a new email to a new prospect I'm editing one of our template emails, putting their name and email address into outlook and manually sending emails. Then for every reminder I'm going back into outlook, clicking reply all and then c&p'ing our second or third reminder emails in each and every time. needless to say at least 2-3 hours of my day are spent editing and resending the same emails on outlook.
[Code]....
Xml - Saving "new Data" Mixed With "old Data" In A DataGridView?
Jun 10, 2011I don't need the actual code, but rather, what "strategy" should I use to do something like this:
Somethings I can't change... and must remain as-is:
1. I have to use vb.net to create my vb.exe executable.
2. I have to use a standard DataGridView, NOT bound to any datasource.
3. The text in some columns is obtained from various XML files.
4. The text in the remaining columns is entered by the user (or left blank).
When he exits the program, I have no problems saving (and later reloading) the entire grid. (I just use a small text file.... or should I be using a SQL database?)When the user hits my "refresh" button, the grid is cleared, and step #3 runs again... but there might be some XML files that have been add or removed. So I "match up" the rows it finds in the refreshed grid, with those "user input cells" that I previously saved to a text file.
I got it to work, but it has to compare 100s of "old rows" to each of 100s of "new rows" and find the "similar rows", and "fill in" the prior user data into certain cells. (Thousands of comparisons.)
Pulling Three Coloums Of Data From A SQL View Into Data Drid Day / Time-In / Time-out
Apr 15, 2012I am pulling three coloums of data from a SQL view into my data drid Day,TimeIn,TimeoutI want to colour my datagrid rows red if timeout is null and green if both the timein, timeout have data in them.[code]
View 2 RepliesGet Column Names In Order They Appear In Database?
Mar 2, 2012I have the following code to get the column names from my Microsoft Access database.THE PROBLEM is that the stupid thing orders it alphabetically for me. How do I get it to put the columns in order the way they are in the database?[code]I've also tried a different approach with a string array and for loop to "make it" go to the beginning, but proves my point that its stupid enough to order it for me.
View 3 RepliesStore Time Date And Time To The Mysql Database?
Jun 24, 2009Im using vb.net and the database is mysql to write a time management system. how i store date and time to the database?
View 2 RepliesDynamically Update Order Of Rows In An Sql Database?
Jun 24, 2010I am creating an information access system. Here the notifications created by the admin will be visible to the user through a visual basic form and sql database. I need a maximum of 20 notifications and the last created notification should appear at the top in the form. Also when the 21st notification is created it should automatically delete the 1st and so on.
View 1 RepliesExecuteReader Not Reading Access Database In Order
May 20, 2010I have a program using the OleDbCommand to read an indexed Access database. [code]I notice that when step debugging the program, the file is not being read in correct order.Example: it will read the record with "B" in the D01 field before a record with "A" in the same field.The record with "B" is the second record in the database.I do note that all records in the database are read before exiting the loop, just not in any apparent order.
View 5 RepliesLoading Database Values In Strange Order
Jul 18, 2010I am doing a small MS Access database based program, but I got one problem. Instead of loading the the rows like this (each nr is the count of the row):
"1,2,3,4,5,6,7,8,9,10", it loads it like this: 7,8,9,10,1,2,3,4,5,6
Here is my code for where it loads the data:
con.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source =" & Application.StartupPath & "\Filmer.mdb"
con.Open()
sql = "SELECT*FROM Film"
[Code] .....
C# - Project With Mixed Languages In .NET?
May 4, 2011I'm not sure if what I am trying to do is possible, but surprisingly VS2008 seems to let me copy a .cs file directly into my VB.NET project. I then thought that I may be able to use the class in this file directly from VB.NET. However, it doesn't see it when I try to reference it in. Is what I'm trying to do possible, or is VS2008 simply treating the C# file as a resource file or something?
View 3 RepliesCan't Order The Data Properly
Sep 15, 2010I have a VB.Net 2008/Access 2007 app that I can�t get to display data in an organized way on a listview. The listview displays the data in the order that the data was entered in the products table. In the SQL statement that loads the listview I put ORDER BY SupplierTbl.CompanyName but it doesn't do it. The listview shows the data in the order that the records were entered in the database. So then I was going to settle for if I can get the listview sorted by clicking on the column header.If I can get that to work then that would be acceptable. So I then implemented the sort routine. The sort works and it doesn't.If you click on a column header then all the rows show the information nicely. The database has an OLE object column for storing images. Customer wants images stored in the database not file paths. When you click the listview the image displays in a picturebox.
The proper images display when the listview is clicked when I use the SQL statement below without the ORDER BY. But when I click on a column header and reorder the display it's no good. If you click on a row in the listview the wrong image is being displayed. It displays them in the order as they were in before the sort. All the other columns look good and are behaving except for the Image column. So that then makes me wonder if my original problem with the ORDER BY is directly related with the OLE object column. Is there something about this data type that I need to know to manipulate it in SQL? My reaction is that maybe since this column is resource heavy it goes by different rules. Can someone please tell me what I need to do to make the end result have some order? This is the SQL statement without the ORDER BY:
command.CommandText = "SELECT ProductTbl.ProductID, ProductTbl.PartNumber, " & _
" ProductTbl.AltPartNumber, ProductTbl.Description, ProductTbl.SupplierID, " & _
" SupplierTbl.SupplierID, SupplierTbl.CompanyName, ProductTbl.Category, " & _
[code]....