UpdateAll Not Changing All Data Fields?
Sep 5, 2008
I am building VS2008 app using Data Source Wizard. The Data connection is working. The Table Adapters are built. The DataSet is created and I can preview data through it. I used drag/drop from the DataSource/DataSet to put a DataGridView onto a form.I can view the records there. I can delete records there. But when I update or add records from there, all of the data is not getting changed. I am connected to ISeries DB2. If I add a new record the only field that get populated in the database is the key field (the first field in the file). If I update a record in the database, the only field that gets changed is the key field.
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Nov 14, 2011
I'm currently refactoring an old Visual Basic DLL (VB.Net), which stores all of its data in one module called Globaldefinitions as public fields. There are about 200 fields, referenced thousands of times all around the code:
Public Module Globaldefinitons
Public a As Short
...
Public zz10 As Double
[Code]...
I need to change the module into a class with non-shared fields. This means, each and every of these thousands of references needs to reference the instance of that class:
globalDefinitionsInstance.a = 5
How do I go about this efficiently?
Regular expressions operating on the source fall flat. Refactoring tools like Re-Sharper or CodeRush don't seem to offer this functionality. Visual Studio 2010 cannot do it automatically either.
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Aug 14, 2011
I have a series of text boxes in my form that can accept 6 digits. Upon entering the 6th digit I want the focus to move to the next text box. Is there a way to initiate a Tab command (just putting chr(9) didn't work...so that may be wrong) once the counter hits 6? I currently have the following code, using the .focus command but I am hoping to not have to create 25 subs to set focus to the next. My current
Private Sub txtEnter1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles txtEnter1.KeyDown
[Code]...
I can't just add txtEnter2.KeyDown (etc.) to the Handles of the sub declaration because then they would all set the focus to txtEnter2 instead of to the next text box. I'm sure it is something ridiculously easy but it is escaping my grasp.
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Sep 19, 2009
Re DataGridView Sorry don't really have any code - just a whole project. Basically I changed the underlying Access (accdb) Table by adding a new field, The new field shows up in the DataSources section of the Solution Explorer and in the "Edit DataSet with wizard" page but when I attach the binding source to a datagrid view, the new field is not there. I also created a new bindingsource but still not there.I just noticed I've another table where I changed the names to something more meaningful, and the old names are still there and the data for those fields doesn't display in the DataGridView
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Aug 5, 2011
Lets say we have an Access file in a well known path (i.e. "C:MyFolderMyFile.mdb"). That file does not have a primary key set on the table we are interested in . Is it possible to set one of the fields as a primary key (for example the "ID" field , which is also an AutoNumber data) ? And one more thing : I'd like to change the name of a field on that table . For example , lets say there is a field called "My Field 1" (note the space characters) and we want it to be renamed as "My_Field_1" . If it's possible , I'd like both these changes to be permanent in the data base file itself , not just in the imported DataSet ,
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Jul 14, 2011
After making a databinding with an simple acces dbase with 16 rows ,three columns, id, channel id, and device, making a dataset with datagridview, all automatated by visial studio in a vb form . the dbase has a function to store the devicetype to a certain channel in a program to create commands send to the drvices.
When i chance an item of the dataset from a extra combobox item outside the datagridviewwith tostring and want to Me.TableAdapterManager.UpdateAll(Me.deleriusDataSet)
I get the fault
An UPDATE or DELETE query cannot contain a multi-valued field. the update button of the datagrid view gives the same error, and a sql command to update only the changed field also.
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Feb 13, 2012
how to execute this SQL Statement
Scenario:
Given Tables T_Data, T_AllDesc, T_System1, T_System2
Given Fields:
T_Data= f_id, f_Desc, f_CreationDate, f_CreationTime, f_System1, f_System2
[Code].....
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Jul 28, 2010
So this is my code... most of it autogenerated... i have created a database, and one table and i stucked trying to update items in table...
Here is the code:
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]....
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Nov 2, 2009
I'm developing a tiny program to update a single field in an MSSQL database table as needed.The user enters in an ID number, clicks Find Patient, and the TableAdapter output gets filtered into a DataGridView.Out of the entire table, I'm only displaying 3 columns (two locked for editing), and hiding the key column. When I go through the TableAdapter Configuration Wizard and have it build the Update queries, it complains: "Updating queries cannot be automatically generated because your SELECT query does not include some primary key columns. Do you wish to add primary key columns to your query?"
[Code]...
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Jun 2, 2010
What I am trying tot achieve is the following:User inputs data in one form that saves to the dataset table no problems. On an edit screen I want the current data saved to appear in this page within all the relevant fields but when saving I want this data to add to the dataset table as an additional line of data so the transaction records are kept.I want to add a new datarow regardless of it saving one change or all 7 changes that are possble.
e.g. Line 1 - user inputs 7 cells of data Line 2 - user amends 2 cells of data Line 3 - user amends 1 cell of data an so on. Unfortunately the terminology for certain items above may not be correct as I am still new to this programming and still on a massive learning curve.At the moment I do not have the code for what I am trying to achieve as I really dont know where to start with it.I am currently able to save the data and have it appear in the "edit" panel however only the cells changed are saved an it overwirtes the initial input.
[code]...
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Dec 10, 2009
I�d like to pass data from my VB 2008 project to data fields set in Word. Can it be done and if so
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Nov 4, 2009
I have a combo box with a data source. This box shows one column of a table and allows me to select one item.Next, I have an ordinary text LABEL that I need to put text from another column of the item selected above.I tried to set the data binding field of the label, but this grabs only the first row or data and shows the selected column. That is nice, but I can not figure out how to update the selected selected ROW when the combo box item is changed.In this case the combo box lists a bunch of inventory parts. When I select a specific part, I need the change the text in a label to show the manufacturer. (like a sub-form). This same behavior will be used in several other places, but the relationships can cascade.
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Jan 6, 2011
i have a form issue and return form. where Issuer_ID is the primary key, this form uses for boht emp and for student issuing book. at run time the user has to select a radio button for student or for employe. if he select student so after entering the full information when he press submit button so student query is execute and data stored in database, keeping the Employee field null, and when user select the employee radio button and after pressing the submit button, so employee querry executes and stores data in employee field, keep the student filed null. remmber and Student ID and Employee ID or foreign keys in isuee and return table and radiobuttons are not the part of database, its just on form.
now i want that when a user gives his issuer ID and at the lost focus event of issuer id, it is checked that if the record exists so the data is bind on the form, if does not exist so the user has to make entry, but if the data loads on form so how user will find out that this data is of student or of employee?
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Mar 4, 2009
I'm unsure as to how to take two pieces of information from a table and display them into a textbox. The textbox should display the 'Balance' and the total money available for withdrawl (balance + overdraft limit). I believe I need to use the data bindings command e.g. TextBoxDetails.DataBinding.Add?
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Oct 16, 2011
How can I get a Variable's value set to the number of Data Fields in my DataBase that is NOT Nul.
I have in a table 10 fields or columns Named: Ing1, Ing2, Ing3, Ing4, Ing5, Ing6, Ing7, Ing8, Ing9 and Ing10. This fields will all most never all be fild, will be fild from 1 upwords. I need to know how many of them is NOT Nul.
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Feb 8, 2010
I bound user to fill textbox through this code
If (TextBox1.Text = Nothing) Then
MessageBox.Show("Please Insert Your Name")
End If
but how can i bound user to put characters only in name field,if user insert numbers then its shows alert to user.how can i do this?
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Feb 27, 2012
I have some fix fields in my database but user can add some another fields to my database if s/he needs. How can I insert data to this kind of fields if there are? For fixed fields I have used the follow cods
Dim rs
As New OleDb.OleDbCommand(
"INSERT INTO Wind_Parameters (ID, Name, CrX, CrY) VALUES ('" &
ID &
[Code]....
But I can't add optional fields to this code. I think I should use UPDATE syntax for fill optional fields after running this cod but I couldn't find correct syntax for it in visual basic 2010
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Jan 3, 2011
i have this code which i am using to display data on fields on form.And if i read from the database and the reader has no rows the ballon tool tip should display from some time indication a message.The problem is anytime i select from the database and the if all reader doesn't have rows only the last message of the ballon shows.the rest doesnt.Please what have i done wrong
[Code]...
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Jun 19, 2011
Class Foo
ReadOnly name As String
Public Sub New(name As String, dependentUpon As Foo)
Me.name = name
[code]....
The output of New Bar() is:
Dependent created. Dependent upon nothing.
Independent created. Dependent upon nothing.
It seems fields are initialized in the same order as they appear in the source code, which (a) leads to an unexpected result, and (b) seems a little puzzling, given that one is normally not permitted to read from uninitialized variables in .NET, yet that seems to be working fine above.I would've expected VB.NET to be smart enough to initialize referenced fields first, and only then those that reference it; i.e. I'd have liked to see this output instead:
Independent created. Dependent upon nothing.
Dependent created. Dependent upon Independent.
how to get VB.NET to behave like that instead, without simply having to swap the declaration order of dependent and independent inside class Bar?
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May 27, 2012
I'm trying to create a table in Word using data from a table in Access. There are four fields in the access table that I need. 3 fields are text which I can populate the Word without any issues. However the fourth field is a memo with >255 characters.I'm struggling to come up with the proper code to allow me to populate the Word field with the memo data that has more than 255 characters. The code I have so far is listed below. But when it hits the memo field, it crashes on the line I marked with **. I know it's not text, but I've tried many different field types, but nothing has worked so far.[code]...
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Jan 14, 2012
My intent is to have the code - on a button.click event - check the Username and Password fields and return an error depending on which is wrong. Or if both are wrong, return a different error message. I've set the username as parts and the password as parts (still learning how to use external authentication). [Code]
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Jul 13, 2009
I am developing an application on VB2008 with MySql as database. I opened the connection without any errors. I have three fields/columns in my database and on the form. When I am running vb form data is not reflecting on to form fields.
I have written the following code in form load event.
'Dim cn As ADODB.Connection
'Dim rs As New ADODB.Recordset
'cn = New ADODB.Connection
'cn.ConnectionString = "DRIVER={MySQL ODBC 3.51 Driver};" + "SERVER=localhost;" + "DATABASE=in_out;" + "UID=root;" + "PASSWORD=pacvision;" + "OPTION=3;"
'cn.Open()
'MessageBox.Show("Connection Opened Successfully")
'rs.Open("Select * from deptno", cn.ConnectionString, ADODB.CursorTypeEnum.adOpenKeyset, ADODB.LockTypeEnum.adLockOptimistic)
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Mar 15, 2011
I got a DataGrid Control that uses an Adodb.Recordset as a data source. I'd like to change the data type of the dodb.Recordset.Fields at run time. PS:I tried use the Type property but I got a message that it can't perform the operation when the object is open. Then I tried closing it with Close() but then it says the field is not available.
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Jun 20, 2011
CODE:
This tells me "End of Statement" is expected. I'm trying to instantiate a new form, and I'm trying to pass information into the form that I will use to populate other data fields on the form.
I've tried looking up constructors, but I can't find where my is different than other examples.
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Dec 20, 2011
Can I display two fields of a data in a combo box. E.g. when I have to select a customer, its name and city should be shown.... Like...
M/s Ananad Traders, Mumbai
M/s Anand Traders, Kolkata and so on.
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May 28, 2009
I'm trying to get a BindingNavigator to add new data and save it to a database. I am using this
vb
Private Sub BindingNavigatorAddNewItem6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BindingNavigatorAddNewItem6.Click HistoryBindingSource.AddNew() End Sub Private Sub BindingNavigator9_RefreshItems(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BindingNavigator9.RefreshItems Me.Validate() Me.HistoryBindingSource.EndEdit() Me.HistoryTableAdapter.UpdateAll(Me.EyeBaseDataSet.History) Me.Close() End Sub
It's telling me UpdateAll isn't a member of the HistoryTableAdapter. What does that mean and how do I fix it? This is an SQL datasource.EDIT: If I change "UpdateAll" to just "Update" that error goes away, but when I try running the program it gives this error which makes zero sense to me.
"An unhandled exception of type 'System.InvalidOperationException' occurred in EyeBasePRO.exe
Additional information: An error occurred creating the form. See Exception.InnerException for details. The error is: Object reference not set to an instance of an object."It shows that in the designer.vb form and highlights the class name.
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Aug 17, 2010
I have several sqldatasources for my gridview. All of the columns are autogenerated. However they all have some consistent fields and I'd like to make those fields template fields so I can modify the edit template for them such as adding a drop down menu. Is this possible?
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Feb 13, 2012
I have an Access database file, which the application needs to connect only when it needs to run a query. The database has five fields. The first two fields contain numerical values (double). The rest are text values.
Well, I don't have trouble accessing the database file. In fact, I don't have trouble running a query on those three fields containing text values, either. But I have trouble making a query on numerical fields. If I run the following, the application will exhibit a data mismatch error.
'MyConnection As OleDbConnection
'MyAdapter1 As OleDb.OleDbDataAdapter
'nIP is a large number like 3647665152
[Code].....
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May 5, 2011
I am looking to define data types by fields in SQL Server 2005. My source is an Excel spreadsheet and I cannot define by columns because each row requires a set of definitions applied to each field in that row. Ex, row 1 requires field1 to be CHAR while in row 2 field 1 needs to be DATE.
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Jul 22, 2011
I am using TPT modeling and writing the EDMX by hand as our data model is much more complex than the designer can support. My model includes a ProjectObject which has a dependent object name Project. When I query ProjectObject.OfType(Project) using Linq to SQL, I receive back data in all the fields that are inherited from ProjectObject, but no data in the fields that only in Project. I have ran a SQL Server Trace and captured the actual SQL and ran it using SSMS and it returns data there, so I am relatively certain the data is being passed back, but it seems to be getting lost somewhere in EF. Everything appears to be ok in my model, but . . .
SSDL
<EntityContainer Name="Insight_ModelStoreContainer">
<EntitySet Name="Project" EntityType="Insight_Model.Store.Project" store:Type="Views" store:Schema="dbo" store:Name="vw_insight_Project">
<DefiningQuery>
SELECT
[Code] .....
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