I am making an OleDb.OleDbDataAdaptor object to fill a DataTable object. In the construction of OleDbDataAdaptor, I initialize it like this:
Dim adapter As New OleDb.OleDbDataAdapter(sql, myConnection)
where sql is the my query string like this:
Dim sql = "SELECT * FROM DBTable TC WHERE TC.Text=N'Criteria'"
I am using the preceding capital N because the field "Text" in table "DBTable" is supposed to be in unicode. And myConnection represents a connection to one of my mdb files, where the DBTable is defined.However, when I execute the adaptor.Fill(myDataTable), it fails and throws an exception: Syntax error (missing operator) in query expression 'TC.Text=N'Criteria''. Does anyone know what happened here? I learned that in order to proceed the unicode text, the N is necessary. Another question is, how can I make sure that the field in mdb file is indeed in unicode? Because I can only see that the field Data Type is "Text" and I am using Access 2003, so I can only assume that it is in unicode. In fact I am enabling the unicode compression for the field, and as you can see in the text "Criteria" where is no special characters anyway.
I have a problem with unicode character, as i create a database in SQL Server 2005. I want to query from a table that criteria fields are contain unicode character i.e NVARCHAR.
e.g: SELECT * FROM tblMyTable WHERE MyField='ភាសាខ្មែរ'. But when i did like this all rows that contain Unicode Character always display. it doesn't fit to my criteria
I am getting the error "system.argumentException; Column ' test_id2' does not belong to table Table. At System.Data.GetDataColumn( string columnname0 at system.data.datarow.get_item(string columnName).
This error is occuring right after I set the parametervalues in the report object of the Crystal report.(Note this a visual basic.net 2005 windows form application.)
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim cryRpt As New ReportDocument Dim sql As String
[code]....
The value for the first parameter @Parm_1d1 value to the crystal report version 11 is correct. However, when trying to access the second @Parm_1d2 parameter ,the values past to the crystal report is not correct.
I am going to make a invoices then.. they are going to have a id it is not going to be identity, it is not my idea, this is the idea's my professor's. then he want it so..he didn't want i change id to int, he want it was varchar..but now i have seen this is as identity.. id =1, next id=2, next=id=3.. but it doesn't mind he told me in the future it is going to be so..
abc000002 abc000003 abc000004
[code]....
then for that he doesn't want i change it to int how can i get the last? i want it one plus next i want it was
abc000010
how can i do it? i am working on visual basic and visual studio 2008i can use a loop-for, or a query for solve it?
I have two textboxes (InputTextBox, OutputTextbox).In the InputTextBox, if I type "a" I need to display tamil letter "அ" in OutputTextBox.For the above requirements, I tried like below,
I'm using Visual Basic Express 2010 and SQL Express 2008 in Windows XP. At first I couldn't add a datasource (the .mdf file for the database) because of a "Operating system error 32" which I seemed to have resolved by giving myself full permissions for .mdf file (by right clicking on the file and going into properties and then Security) and restarting the SQL SERVER (SQLEXPRESS) service. The dataset for the database is in my solution explorer but when I right click on a table adapter to add a query and attempt to open up the query builder, I get the error in the title above.
I'm using Visual Basic Express 2010 and SQL Express 2008 in Windows XP.I created a database on my local PC HDD. At first I couldn't add a datasource (the .mdf file for the database) because of a "Operating system error 32" which I seemed to have resolved by giving myself full permissions for .mdf file (by right clicking on the file and going into properties and then Security) and restarting the SQL SERVER (SQLEXPRESS) service.The dataset for the database is in my solution explorer but when I right click on a table adapter to add a query and attempt to open up the query builder, I get the error in the title above.
In my code i have succesful get table column name. But i want the first table column name showing not all. rs.Open(strSQL, adcLEDGER, ADODB.CursorTypeEnum.adOpenKeyset, ADODB.LockTypeEnum.adLockPessimistic)
Flds = adrCURR.Fields TotalCount = Flds.Count For Each fld In Flds MsgBox(fld.Name) Next
I have a table called Table1 which already has a few other columns and 4 rows. I want to add three new columns to it. When the columns are added I want all the cells in the column to equal the variable I supply in the Add method. When I add the column named "BatchID" it works beautifully, but when I add "UserID" it gives an error "Cannot find column [iqz9]". Why? This is how Table1 should look like:
i recently posted a code that i had that i needed assistance for and it was solved it was for displaying all tables in a database.but now i have this code for showing all column names in a table i was in the process of turning it from oledb to sqlclient. GetOLedbSchema can be turned to getschema but when it comes to OleDbSchemaGuid
Public Shared Function getAllColumnNames(ByVal tblname As String) As String() Dim com As New SqlCommand Dim con As SqlConnection
i have this code for showing all column names in a table i was in the process of turning it from oledb to sqlclient. GetOLedbSchema can be turned to getschema but when it comes to OleDbSchemaGuid
Public Shared Function getAllColumnNames(ByVal tblname As String) As String() Dim com As New SqlCommand Dim con As SqlConnection
I have a problem i want to display value of a column from table i want view the value when form loaded. I am writing this code on form load but its not working
Dim cnString As String cnString = ("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:\PaymentSystem\PaymentSystem\bin\Debug\Payment.mdb;")
I am writing an app in VB2010. My code parses a text file, assigns data to variables My? and then attempts to store this data in an access 2010 table. Yet, whenever my code gets to MyRow.Item("Artist") = MyArtist I get an error 5 'Artist' does not belong to Table T, but the field/column does exist in the table as do all the others.[code]...
Partial Public Class AwardsDataSet Partial Class RevExpDataTable
[code]....
I am not sure of the command for format the Table 'Revenue' column for currency. Also is there a way to do calculations? I need to multiply the value by -1?
currently, what i want to do is, add a column in a table "default" during runtime. Well, I've got that covered already.
The problem is, the column names are actually taken from the users input through a textbox or drop down list and of course, if the same column is added already in the table, it generates an error since it has to be unique.
That is why i wonder if it is possible to know if a column already exists without viewing the form which contains the grid view of that table?
Here is my problem:I have 2 tables Accounts and Transaction Logs.in Accounts table, it has column "Amount" which is a base amount of an account.and in Trans Logs table, it also has column "Amount" which is additional (add or minus to the base amount) amount of the account.and I don't know how to retrieve that base amount to edit it, then save it back to the table.That means I need to get a value of the right column by using Acc_No to find. I'm using DataSet, by the way.i think it should go like this:
Dim Amount as Decimal Amount = *the code to retrieve the base amount* Amount = Amount + txtAmount.Text *the code to save the new amount back to Accounts table*
i am developing a software using microsoft visual studio basic 2010. I set up a connection string to my server and take the data from there. I am using gridcontrolview and put my "product" table in here. It contain 4 column: systemid, system, actualid, description. I want to display only system column (it's easy, just hide the others column) But, In "system" column, there are a lot of similar data, i want to display only distinct data from this column in the grid
example, the column consist: STSTEM topaz topaz topaz
[Code]....
i try to user "add query", buat if i get rid of the other 3 column, there will be error message like "the output is different with the schema"
I created a typed dataset a day or so ago, then I added a whole bunch of tableadapter/tables with some relationships etc... suddenly out of nowhere it decides my dataset "is not defined". everywhere in my code where i use this dataset now has an error. I tried not to pull out my hair and do a Clean then Rebuild solution... out of nowhere it just refuses to generate code. Object reference not set to an instance of an Object. It would be nice if it was my object so i could find it but it's not.
Curiously I also lost the little database icon on the dataset in the solution explorer.I can still open it in the designer and preview my queries etc... it just wont make the code. it's driving me insane. anyone got a solution?
I need to add a column to an existing table in my database. I am having trouble adding a column to my database. I physically go into Microsoft Access and add the column, my problem comes up when Visual Studio does not recognize the table. Basically, I think I'm doing something wrong.
I wanted to add new column to the existing table in my database table Please help.in the form it has a textbox in which you can enter any name that you want you column to bear. all this will be at runtime.i try but it keep saying (format of the intitialization string does not conform to specification starting at index 0) [code]
I have a routine in a custom class that is assigning values to an object based on data from a table row. However, several tables may be used to update these values and only have some of the fields in common. Therefore, I want to check each field value to make sure it exists before I attempt to access it's value to assign to my object. However, I am getting the error "Column x Does Not Belong To Table."
'error occurs on first line If Not memberRow.Item("nickname") Is Nothing Then returnval.NickName = Trim(memberRow.Item("nickname").ToString) End If
Does any one know how I can compare the numeric value of a text box on my Visual Basic 2008 form to the values in a particular column of a SQL database table? Things seem to work fine with bound controls when there are related records in the child table, but if a value is selected that has no related child records the form continues to display old information from the last record viewed. I would prefer to have the fields on the form go blank.
What is the easiest way to automatically fill a datetime column in an SQL data table with the date the row was created? Using SQL Server 2005 if that matters.
EDIT: I've tried using GETDATE() for default and that works for an INSERT Query but not when the TableAdapter adds the row.
