VS 2005 Query Under Form Under Working?
Dec 30, 2009
With DataAdapter i passed a query and this is working....
Dim strSQL1 As String = "SELECT tbl_Items.GroupName, tbl_Items.ItemName, tbl_quantity.Quantity, tbl_quantity.QtyDate FROM (tbl_Items INNER JOIN tbl_quantity ON tbl_Items.ItemID = tbl_quantity.ItemID)WHERE(tbl_quantity.QtyDate = #12/29/2009#)"
Dim da1 As New OleDbDataAdapter(strSQL1, DataConn)
Dim dt1 As New DataTable
da1.Fill(dt1)
But when i give the date as this, not working...
Dim tmpDate As DateTime
tmpDate = System.DateTime.Now.Date
Dim strSQL1 As String = "SELECT tbl_Items.GroupName, tbl_Items.ItemName, tbl_quantity.Quantity, tbl_quantity.QtyDate FROM (tbl_Items INNER JOIN tbl_quantity ON tbl_Items.ItemID = tbl_quantity.ItemID)WHERE(tbl_quantity.QtyDate = " & tmpDate & " )"
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Jan 22, 2011
I not able to update query in MSAccess having 3 images. Also, its not showing any error.
Awaiting ur reply.
[Code]...
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Jun 18, 2011
I am trying to query WMI to get the current IP address of the computer.I have the following code, which queries the MAC address, and this works fine.But if I change the query to "ipaddress" (a valid property), I get a run-time error, something about a type mismatch [code]
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Sep 20, 2011
user.fld_usr_name is a string with the value random name user is an object that is given as a parameter
ByVal user As GUser
this is the linq query that doesn't work
Dim result = (From usr In users Where usr.Name.Contains(user.fld_usr_name) Select usr).ToList()
this is the one that works
Dim result = (From usr In users Where usr.Name.Contains("random name") Select usr).ToList()
this is the error
Object reference not set to an instance of an object.
I am using this in Linq to Active Directory library which probably means it's linq to entities I've tried everything?
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Mar 11, 2009
i am creating a pda application using vb.net and sqlce and i can't seem to get parameterised query (or atleast i think mine is one) working.i dont know what i am missing because on the code below, i still get a END OF STATEMENT EXPECTED.[code]
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Jun 28, 2009
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If Master.Text = "8888" Then
[Code]...
i dont know whats rong in this , it says syntax error at * if i delete star then query runs but database still contains the row. FYI its code for desktop application using vs2008
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Apr 15, 2012
statement = "SELECT OrderID, (SELECT VendName FROM Vendors WHERE Vendors.VendorID = Orders.VendorID) " &
",OrderDt, RcvdDt, OrderTotal " &
"FROM Orders " &
"WHERE VendName=? " &
"ORDER BY OrderDt DESC"
Dim cmd As New OleDbCommand(statement, connection)
cmd.Parameters.AddWithValue("VendName", txtVendorFilter.Text)
Dim reader As OleDbDataReader = cmd.ExecuteReader(CommandBehavior.Default)
I was trying to do this before by simply concatenating the textbox value right into the SQL and I was getting a "No values given for required parameters", and read that that I should use parameterized queries instead. So I tried this and it doesn't give me any errors, but the reader never has anything in it. I've never used parameterized queries before, so I'm a bit lost as to why this isn't working. I've changed the above code to account for OLEDB from what I briefly read on how it should work, and it's giving me the "no values given for required parameters" again.
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Sep 14, 2011
I have a SQL query string that gets the top 5 records from a database however 3 variables are passed with the sql query that gets specific data.[code]
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May 6, 2012
I'm using vb.net express with access 2010.Everything is working fine except for a simple query:SQL: SELECT * FROM Customers WHERE Name Like 'Ale*'Which returns all the names starting with Ale. Now in my .NET code I wrote this:cmd = New OleDbCommand("SELECT * FROM Customers WHERE Name Like " & Chr(39) & Name.Text & Chr(39), connection)Now when I start the app and in my textbox "name" I write Ale* I have the following expression:SQL: SELECT * FROM Customers WHERE Name Like 'Ale*'But when it executes from .NET (dr = cmd.ExecuteReader) it doesn't find ANYTHING.
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May 28, 2010
[code]its show me that it have written the command but when i stop the program and see my db its is not there. i've searched the net and alot of books but i cant seem to make it work.
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Nov 3, 2011
I am trying to run what I thought was a rather simple parameterized insert query, but am running into all sorts of problems. SQL EXPRESS 08R2, VB.net
Here is the VB code that builds the parameters...
UPDATED Variable names:
itemDataSource1.ConnectionString = ConfigurationManager.ConnectionStrings("MyConnectionString").ToString()
itemDataSource1.InsertCommandType = SqlDataSourceCommandType.StoredProcedure
itemDataSource1.InsertParameters.Add("@short_Text", short_Text)
[Code]....
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Jun 29, 2009
I have the following code which will only return one column of 41.
vb.net
Using Command As New OleDb.OleDbCommand("SELECT * FROM Products_TAU WHERE ItemID= @ItemID", Connection)
Command.Parameters.AddWithValue("@ItemID", ItemID)
[Code]....
That table alone is filled with 76 records and has 41 columns of data to pull.. this is only returning the first column of the row indicated by the where clause.
Before I had the where clause call it by lineID which there is 4 records of that... and it was able to pull 4 columns from it...
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Sep 14, 2010
The below query fails with Null Reference Exception when there are elements in BOMIDs where MatID property is nothing.I thought the 'x.MatID isnot Nothing AndAlso' would prevent the x.MatID.Process part of the where from being executed. There are a couple elements in the BOMIDs collection that where MatID is nothing.
From x In BOMIDs _
Group Join y As PurchasedProcess In SpecialProcesses _
On x.MatID.PurchasedProcess Equals y.Name _
Into G = Group _
[code]....
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Nov 28, 2011
I am trying to prevent from having to escape apostrophes in my string variables by using a parameterized query with a OleDbConnection, but it is not working. I am trying to insert into an Access db and I keep getting those pesky html codes.
Dim pConn As New OleDb.OleDbConnection
pConn = New OleDbConnection(cb.ConnectionString)
Dim SqlString As String = "INSERT INTO Strings (Mlt_String_ID, Lng_ID, Strg_Name, Sht_Text, Lng_Text, Alt_Text) Values (@Mlt_String_ID,@Lng_ID,@Strg_Name,@Sht_Text,@Lng_Text,@Alt_Text)"
[code]....
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Sep 23, 2009
I have a SQL 2005 table called Customers and i would like to query the table for exact match and partial match. The exact match query is working OK but when i use the partial match, it doesnt return any result. Strange thing is, it works inside the query designer, it returns rows. On the dataset, if i right click and say 'Preview Data' and supply the search criteria, it doesnt bring in any rows. Same happens in the vb.net form also. Instead of partial string, if i supply the full customerid, it returns a row.Whereas I can return rows on another table, Suppliers. I dont know where the problem lies. Here is the sql:[code]In fact, I am trying to use the wizard generated code and details on the form. No changes done to the code or form.The customer id is nchar(10) column and is the primary key also. I ran the same steps on the Northwind database too, and the same problem exists.
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Apr 20, 2012
I am trying to make a project for point of sale and i am having issues with updating inventory table. once cashier make sale items quantity should get subtracted from inventory table. i tried bellow code but it is not updating table, however in message box it does give me new quantity for that item.
[Code]...
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Nov 13, 2009
[Code]...
MsgBox(cmd) End If End While '***** END ***** reader.Close() con.Close() MsgBox("The Connection to the Database is now Closed") End Sub End Class
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Nov 22, 2011
I am trying to prevent from having to escape apostrophes in my string variables by using a parameterized query with a SqlConnection, but it is not workinUPDATED: this is current code...
'Populate Connection Object
Dim oCnn As New SqlConnection(strConnection)
'Define our sql query
[code].....
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Jul 30, 2009
this is the code
Dim con As New OleDb.OleDbConnection
Dim com2 As New OleDbCommand
Dim constring As String = ConfigurationManager.ConnectionStrings("esourcecon").ConnectionString
con = New OleDbConnection(constring)
com2 = New OleDbCommand("UPDATE Customer SET CName = @CName, CAdd= @CAdd, CTel= @CTel, Cmob= @CMob WHERE CName='" & C1.Text & "' ", con)
[Code]...
id is an autonumber field and if i change the where string to another column then also i dont get any error and the values are still not entered
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Feb 28, 2012
I am new bie in Scripting world.I wrote a script in vb 2008 to query active directory information.Even though the script task executes successfully when i tried toretrieve records from the object variable using for loop container in ssis it gives an error the object variable doesnt have valid data n it.i suspect that i am facing errors in assigning the result set to the package variable declared as object.Please could someonehelp by having a look whether the data will be assigned correctly according to my script.i am trrying to pass the information queried from ad to package variable gvresults described as object.
[Code]...
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Dec 21, 2010
I have the following in VB:
Dim sources = From source In importSources Select New With _
{.Type = source.Key, .Source = source.Value.Name}
dgridSourceFiles.DataSource = sources
[code]....
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Jul 27, 2011
I want the Indexing server Query to Search any type of document by document name.Let assume i have ..
test.ppt
test.pdf
test.doc and so on.
If I enter the test name in my search text box the , I want the search result with these file. I am using the vb.net with the help of MicroSoft Indexing Serice. I need the query of MicroSoft Indexing Serice for search any type of document by document name or title.
Public Function GetSearchResultFromIndexServer(ByVal strSearchString As String, ByVal sPath As String, ByVal sLookIn As String, ByVal sSortBy As String, _
[code]....
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Jul 26, 2011
I want the Indexing server Query to Search any type of document by document name.
Let assume i have ..
test.ppt
test.pdf
test.doc and so on.
If I enter the test name in my search text box the , I want the search result with these file. I am using the vb.net with the help of MicroSoft Indexing Serice. I need the query of MicroSoft Indexing Serice for search any type of document by document name or title.
[Code]...
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Nov 27, 2011
I'm looking for a control that allows images to be placed onto it and moved about. Moreover, I need to draw lines between the images. It will sort of be like the query designer in SQL Man Studio. It will be used as a virtual desktop where a variety of objects (and their icon representations) can be freely placed and moved. I'm having a blank and cant remember where I saw this before.
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Apr 25, 2011
I should mention I am developing this in SharpDevelop, so if it's a bug with this software then I'll take this up with them.
So I am having issues with trying to get a right-mouse click to work. I have a grid of 30 buttons and I need to right-click to enable a button and left-click disable. I have surfed all over the internet trying to find the answer and the closest I have come to it is it detecting a left-click, but never right.
Sub Button1Click(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Button1.Click
DataGridView1.CurrentCell = datagridview1.Rows(0).Cells(0)
[Code]......
As you can understand, I am having a lot of frustration with this. It just seems that I can't get it to work. I've scoured the internet looking for a solution without avail.
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Aug 14, 2009
I'm trying to compress a file in .NET, but having some trouble. The zip file is created, but it's only 1KB and no files are within the zip file. Basically, it's not working for some reason and I'm not sure why.
Public Sub CompressFile(ByVal fileName As String)
Dim strOutput As Stream = File.Create("zippedFile.zip")
Try
Using (strOutput)
Dim strInput As Stream = File.OpenRead(fileName)
Using (strInput)
[Code] .....
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Jan 13, 2010
I have a folder named "Root" in my d: drive.The "Root" folder contains two folders namely "Child1" and "Child2".The "Child1" again contains a folder named "Sub-Child1".The "Child2" again contains a folder named "Sub-Child1".I want to do a code in such a way that i can show the folder names in a Treeview.
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Jan 18, 2010
how to operate onthe excel in vb.net......such as Create an Excel 2003 file in VB.NET 2005,Open and Edit Cells in an Excel 2003 file in VB.NET,Format Excel 2003 Page in VB.NET ,How to export from database to excel,How to export from DataGridView to excel,etc.i know the structure a file excel.It contains 3 main component.
1. Application which can modify and operate cells .
2. Work book , is child of Application and contains worksheet.
3. worksheet is child of Work book and contain columns and rows.
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Jan 4, 2011
I have a picturebox on the form that has the KeyTip property assigned. If I hit the corresponding key, nothing happens. It seems to only work with controls other than the PictureBox.I have set KeyPreview to True and added this
[Code]...
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Apr 30, 2011
I'm having an issue with rasing an event. In my application I have a form and within that form I create an instance of a class (clsUsage). Within clsUsage I create an instance of clsUser which does several checks form permissions and other things. What I want is for clsUser to send status updates to clsUsage. ClsUser will be a dll but for now I've got it as a separate project in my solution. The RaiseEvent in clsUser seems to execute but the proc in clsUser that handles the event does not execute. I'm wondering if this is threading issue.
[Code]...
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