When I click the Add button to save new form information to the database the form doesn't show the new information unless I close and re-load the form.
Public Class WeightHeightPopup
Dim WHcon As New OleDb.OleDbConnection
Dim dbWHProvider As String
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I have been a systems admin for some time and my new employers are forcing my hand into programming. I am currently Trying to write custom software that interfaces with our Advantage Database. I have the data source and connection opening fine. It seems that All of the advantage developer classes are working correctly. Here is a link for adv advantage classes: [URL]..The problem I have is I want to query advantage... then place that query in a data set.., then display the results in datagridview on a form (just trying to see how the tools work) it seems that everything works without errors except I am getting nothing on my datagridview (stays blank after execution.
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i have a problem with viewing a dataset's table in my program code check out the error that exists when trying to fill a instantiated tableAdapter below: [code] The Undo operation encountered a context that is different from what was applied in the corresponding Set operation. The possible cause is that a context was Set on the thread and not reverted(undone).
View 4 Replieshow can we view the selected row's data from datagrid in textboxes in vb.net 2003?
View 3 RepliesIm banging my head against the wall with this one...If anyone can give me some pointers on how to combine the following two code snippets,[code]
View 5 RepliesI have opened a VB project which was created using a previous version of VB. So, it popped up the conversion wizard and it completed the conversion to 2010.
But when I tried to view the forms (using "View Designer"), it shows the following message[code]...
does any one know if this is possible and if so , how? importing a excel graph and viewing it on a vb form? sample code would be very nice
View 1 RepliesI have written some functions that I have in a module. In one of the functions I would like to update a table that is in a dataset. I would like to do this with this function and not from a form class where the table could be bound. I need to call the function from various places in the application.
View 3 RepliesI though I had solved this problem, but it is back:Code generation for property 'SelectedPeople' failed. Error was: 'Type 'ECS.Entities.Persistency.Person' in Assembly 'ECS, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' is not marked as serializable.'The property on the error message is a List(Of Person) and for some reason it trigger this error, for almost anything I do, and its getting really anoying.Okanswering to the answers here is a little more information about the problem.
Yes it is during design time, it happens bascially anytime a open a form that has a UserControl that contains the Selected property in it, sometimes it happens even if I don't have focus on the form, also if I try to compile/run it happens and the message come in the form of a Message Box with just a OK, ECS.Entities.Persistency.Person is just a LINQ to SQL Generated Class, this should not matter at all to the problem, although I have added the attribute before the posting.he reason that this happens is because the Designer attempts to put the property on the Property Panel, and for that to happen, serialization happens.tryed to hide the property from the designer by using this attributes.
<DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)> _
<Browsable(False)> _
Public Property SelectedPeople() As List(Of Person)
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I have an application has a data entry form, and currently I'm using the form validation and validated events to validate the data - along with an error provider. I've read that this logic should be placed in the Dataset rather than the form. To that end, i've started exploring how to do that.
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I have tried everything I can to get beyond this error which shows below as <<<<< error here. It is trying to fill a dataset from a data adapter. If I change the SELECT statement to just SELECT * FROM xTable I get the correct number of records in each table. But anytime I try with a more complex statement I get the error message shown below which indicates System.Data.Common.DbDataAdapter.Fill(DataSet dataSet. I've completely erased all data and entered a new set of test data so I know there is no problem with relationships. Each table has primary key which is foreign key in other table. IS there something wrong with the Imports section: Imports System
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i am trying to copy data from a standard Dataset to a Type Dataset (XSD) of same table structure. i want to use Automapper to do that one. So how can i do that using automapper?
View 1 RepliesI have two Datagrids, One grid has all the customers garments on it with style number and contact length. The other grid has the users who have garment issued to them. the style number is in both grids. I need to loop through the users grid and say if the contract number is 1 from the first grid then the contract date on the second grid will be todays date + 365 days (year contract) I have looked at using a stored procedure and also a for each command but I am just getting stuck with it all. [Code]
View 1 RepliesI need to pick all data in my application from my database and use it in my form
my question : how to pick all data in my application then i use it
I have a dataset (WW1Dataset) with one data table(WW1).(database used in an access database) I'm trying to filter the dataset e.g a user wants to filter by a chosen surname (SurnameTextBox.text) so the datset is filtered to display only those records wherethe surname column in the dataset matches SurnameTextBox.text.
View 1 RepliesI created a SQL database using the migration tool.I am converting my access forms to VB.net (VS2008).I am wondering if I create a single dataset in studio to the database or do I create a dataset for each form (query)? I am trying to determine what the best solution is. Many of my forms have drop downs that are populated using queries from tables.
View 3 RepliesI have a DataGridView on a form that is being populated from a SQL table dataset by giving criteria from a previous form. I have 6 columns in the dataset, of which the last column should be combo box column containing items "Done" and "Pending". How do I make this bound column to a combo box column and display the value as well as the alternate item too in the combo box?
View 6 RepliesI have a situation where I serialized data from a dataset to an xml file as a method of backup.I am trying to get the data deserialized back to the dataset.But for some reason, I cannot get the data to persist back to the DB.I don't receive any error messages either.The first chunk of code is the serialization code and the second chunk is the deserialization code.I can show that the deserialization back to the dataset is complete because this code in the 2nd block DataGridView2.DataSource = Movie_dbDataSet.movie_tb - displays the data in correct form all it is all there in the datagridview2.I call the update method but it does not get persisted back to the db.[code]
View 3 Replieswhen i try to insert data from database into dataset using data adapter, it takes long time, i want to use hourglass but i'm confused how or when i type the code so user will know that application still work.
View 1 RepliesI have two forms....Mainform is filled with controls that are databound to a datasource.....then I have a child form that is used to edit data from parent form.......the data that is displayed on the child form uses the Filter() method of the binding source to display data only for the customer selected......
The child form has the standard OK and CANCEL buttons set up as dialog result.......after I edit the content in child form, the changes are displayed on the child form correctly......but when closing the child form and going back to the parent form the changes dont appear there unless I restart the application.....I also tried adding the tableadapter.update/fill method in the 'OK' dialog result event handler and it still doesnt work......
How can I make the changes take effect on the parent form without restarting the application?
I am facing problem in displaying VB 6.0 windows form when it is accessed from activeX control on windows server 2008 Is there any work around or any patch available to resolve this issue
View 2 RepliesUsing a dataset, I wanna get data from a table, and use some values of the dataset return, in other fields.
I use this
Dim ConexaoBD As OleDbConnection
Dim DsDados As DataSet
Dim sqlString As String = "SELECT dias FROM varroa WHERE ID=" & cbProduto.SelectedValue
MsgBox(sqlString)
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I'm trying to view dbf on datagrid but fail. My script is like this:
Imports System.Data.OleDb
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I have 7 variables and i need to transfer them in a dataset I have already create the file with extension .xsd and i have already a report file .rdlc I see the Dataset "DataTable"in my rdlc file but i can't see any field It gives me error of "No Dataset is Linked to the document" From the other hand it sees the dataset in the selection dataset
View 1 RepliesI created a dataset in Visual Studio 2010 containing two tables: tblCategories and tblAnswers. tblCategories has two columns: CategoryNumber (AutoNumber and primary key) and CategoryName. tblAnswers has three columns: AnswerNumber (AutoNumber and primary key), Answer, and CategoryNumber. The CategoryNumber columns in each table are related. I have a command button which I want to use to add a record to the CategoryName column in tblCategories with the data typed in a textbox. When I try to access the dataset to add a new row(dataset.tblCategoriesDataTable.NewRow), the NewRow method isn't present. I've done some reading which suggests that I need a TableAdapter, but it seems like that is for connecting to an external file because I have to select a connection. I have no external SQL files or database. I want the user to be able to create a database within my program.
View 1 RepliesI want to search record based on following fields
P_num ,P_name, P_dob,P_code
I am using more than 4 tables to retrive data, I have created dataset called P_search and i want to fill data into dataset and thsn display it according to which field is selected for search purpose. Suggest me to write code by creating own function in which all fields and a boolean variable will be taken as parameters
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I have added a DataSet to connect with my SQLDatabase. Test Query displays correct values but when I programmatically try to display the value of a certain field using following code
dim vrName= dsTest.Tables(tblTest).rows(0).items(0)
I get Tables is not a member of dsTest.
how can I use dataset to read, write, edit and delete data as we use in WinForms?
How do you plot data from a dataset or datatable. I have loaded a dataset with data from the database and now cannot do the plotting. When I tried: myChart.dataContext=ds("myTable").defaultView, no chart shows. If I replace: dataContext with: dataSource, I get an error. I am using WPF not Windows Forms.
View 5 RepliesHow can i convert the following xml data to a dataset in vb.net?
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<userinfolist>
<UserInfo>
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I need to copy all data from a Table of a Acces mdb (connected with OleDB) to a Table of a MySql DB (connected with ODBC)
I made a working solution, but it's very slow, and so I want to try other solutions to check if they can give me more performance.
The solution connecting to the mdb, using a DataReader, then for each row in Datareader I make an INSERT into the Mysql Table ( before copy I truncate the table to get it empty)
The records are more than 10K and this operation is very slow, and do be onest I need to do the same thing on other 2 tables also very big as this one.
I cannot make a direct sql insert ( as INSERT INTO A in ..... SELECT * FROM B) because the 1 DB has a OleDB conn and the other has a ODBC conn.
So I thought to try to make this operation using TableAdapters and DataSet, but I'm not able to make it working.
The problem is that the Dataset's HasChanges is false
If you need some code I can post, but what I do is following:
Connection to MDb
Create OleDbTableAdapter
Create DataSet
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