Datagridview Does Not Show Data At Runtime In VB Express 2008 In Windows 7
Dec 11, 2009
I'm using Visual Basic Express 2008 in Windows 7(64-Bit). I've added a datasource to my project and dragged a table from Data Sources onto my form. It automatically created a DataViewGrid and placed this statement in my form load event:
The DataGridView shows all the correct fields/columns. The .DataSource property for the DataGridView is set to the automatically created BillsBindingSource. When I preview the BillsTableAdapter, the data appears. But data does not appear when I run the app. The datagridview is empty. When I build the app and run the executable, I get a Microsoft .NET Framework error message that says: "Unhandled exception has occurred in your application. If you click continue, the application will ignore this error and attempt to continue. If you click Quit, the applicaiton will close immediately. The 'Microsoft .ACE.OELDB.12.0' provider is not registered on the local machine." If I click "Continue" I get my form with an empty DataGridView. What am I missing to get the data to display in the grid at run time? Oh, and I've also tried using the DataGridView in C# and I get the same problem.
I have designed an application for a company which has 5 client computers that read and write data to an sql2008 instance on a server.I would like to know the way to detect a change in a table whithout having to refill the table adapter.Let's say that all the client applications have a datagridview on the main form which binds to a table on the database lets say Members table (members binding source)Whenever a client makes a change to that table (lets say that it updates the Last name of a member) i would like the rest of the clients to detect that update and as a result ,update the specific row or cell in the datagridview.Is there some kind of event that is raised?
I have a user control that contains a search value text box a button, and a datagridview to display what the data adapter found. In the data set designer, I have an ODBC connection to a table, with two SQL queries defined FillByCustomerName(NAME), and FillByCustomerNumber(CUSTOMER_NUMBER). If I preview the data in the designer, I see the data expected. The datagridview doesn't show any data. The functions PopulateGridByName and PopulateGridByNumber do the work. I've tried adding a dgCustomer.show statement, The form that calls the user control has no codebehind code, and throws no errors.
Private Sub btnSearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSearch.Click Try Dim SearchValue As String = CreateSearchValue()
I'm quite new into the programming game, I've been working on this program for a few weeks now, and its coming along, but the method I searched for entering new rows of data into my table doesn't seem to update my tables after I try entering data. I have a feeling it may be something very simple that i am over looking.
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click Dim conn As New SqlConnection("my datasource")
My project is a server/client application, how do I copy existing panel with labels and pictureboxes to show stats of clients connected? I mean once the server accepts a client, stats of that client is shown on a new panel but has the same contents as the existing panel. Any Idea how to do this? I was thinking to make a set of panels and hide them if there's no client connecting but what if there are too many clients connecting more than the set of panels already made?
I'm using Visual Basic 2008 in Windows 7. I've added a datasource to my project and dragged an element, a sort query, from Data Sources onto my form. It automatically created a DataViewGrid and placed this statement in my form load event: Me.SortBillsTableAdapter.Fill(Me.DoBills_2009DataS et.sortBills). The datagrid view shows all the fields/columns. When I preview the data element from right clicking the element, selecting Preview Data, and click Preview in the Preview Data dialog box, the data appears. But it does not appear when I run the app. The datagridview is empty. What am I missing to get the data to display in the grid at run time? I did notice that in the properties for the dataviewgrid the databindings property is empty. Is that right or am I supposed to do something there?
I have been working on a quite complex multiform solution.All of a sudden the start up form (in fact any form I designate to start up) loads, displays and operates fine.
But when I try and show a form using showdialog the form displays behind the original form and I can�t set focus to the ide to close it down. I have to use task manager or alt f4 while the form has the focus.
Calling different forms from this one gives the same result but other forms work fine. I don�t want to redo this form as Ive done a lot of work onit.The only thing I can think of that whist I was changing the startup form in the project propertied page (file>project>properties) I unchecked the �Enable applications framework checkbox.
I fetch data from an SQL Express database table named ALARMLOG to a datagridview1. One of the columns of ALARMLOG is "TheTime" which has datetime data type values. This values are in the following format "22/04/2010 13:23:45 PM".When I fetch the data to the datagridview1 I get "22/04/2010 13:23 PM".The problem is that I can't display the seconds in datagridview1. I tried the CORVERT command of SQL in order to convert from datatime to varchar but nothing...
I am using VB Express 2008, on Windows XP Pro. I have written a programme which compares the prices and terms of up to 10 Bidders and 500 line items in mixed currencies. The programme has been working well, but I decided to introduce a progress bar to indicate the percentage of completion in lieu of a simple label saying, while the wrap-up subs ran. Unfortunately, my attempt at threading does not work. The Progress bar completes, before the wrap-up subs start.
I recently upgraded to Win 7. My code runs prefectly fine in XP. On my new PC with Win 7, the data grids do not fill with data. If I preview the data in the dataset it shows up fine. On opening the application I get the following error:'System.InvalidOperationException' occurred in System.Data.dll
I am working in vb.net and i have a simple requirement. I have added a MDB file to a dataset and it contains 21 tables. I have a datagridview and a combobox on my form. I was able to get the combobox populated with the table names available in the dataset by iterating through dataset.tables. Now i want to add the feature where the user can select the table name from the combo and then it should populate the contents of that table. I tried the following Code
I am trying to produce a form in VB2008 which shows data from two related database tables, and then allows the data in one of the tables to be updated. I would like to do this using a DataGridView, but I have no idea how I would go about this.
I have a datagridview.And as per my requirement the data is supposed to be filled from three different tables in database.I have created the query and is succesfully able to populated the data in it with the cross join.Have a look at my structure.
Table1,Table2,Table3. table1 has 2 records. Table2 has 7 records. and Table 3 has 15 records.
Below is my code that reads data from Cross Join Query
If dr.HasRows Then While dr.Read combo1.Items.Add(dr(0))
using Vb Net 2008 with SQL Express 2008 R2 in windows forms. that being said, I have a syntax problem in this form, form has 2 texbox an a datagridview and also the 4 components DataSet. BindingSource. TableAdapter, BindingNavigator. When I filter by LastName no problem it work fine (it's a String) but when I try to filter by CustomerID (it's alphanumeric) I get an error "Invalid character" here is part of my code: Private Sub surnameFilterTextBox_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles surnameFilterTextBox.TextChanged
I need to get a table on my Form that has different columns from differen tables.As I call many tables by their Identity ID, I also need a way to show the information from that table.I created a query in my TableAdapter which selects information from 2 different tables. Tested it in the query builder and all was OK.I tried to put an empty DataGridView onto my Form and inserted the correct BindingSource for my Data Source.I then added a query and selected the query I created in my TableAdapter.
I am using Datagridview to show some table data from database. It is working but its appearance is not what i am looking for.Is there a way to edit columns and rows manually ?This is a list of what i want to do :
1. First of all i want to change column captions. because they are like "Fld_name" etc.
2. There is a column that shows date. I want to write a code for it ( convert date type )
3. I want to add a button at the end of each row and write a code for it ( show detail about that record )
I'm trying to create a simple Data Grid that will automatically save changes. So far I have a data grid connected to a MS Access 2007 Database that reads the data. I can create new fields in the Data Grid, but I need to program to save the data automatically to the database on update (or on close).
currently i had a program which working fine when its running in the solution explorer,but after published,problem comes.my datagridview cant show updated data while my database access already update...my datagridview only show existed data.could it be my datagrid problem?i get my data programmatically or is my INSERT command doesn't update the dataset?but in the solution explorer does show the dataset was updated. [code]
Durring game play of a game I am designing, I recieve a lovely crashing event in which my computer tells me that "vshost" has stopped working. Also, i get a message after debuging that tells me the problem is due to a compatability error between my version of windows and the version of C++ that is running.
I was not aware C++ was running. Can anyone offer any explanation for this? I will gladly share the code and the game with anyone interested. So far both computers that I have attempted to play the game on ultimately ends in a crashing vshost or windowsapplication1 but the second computer was able to run the game smoothly for much longer.
If anyone wants to try the game on your own system I will e-mail it to you, (small file) 4.7 mb I'm curious to know if it will crash on every computer.
I have a data bound datagridview. I want to be able to have column 3 default value is = 0, column 4 default value is = 1 and column 5 default value is = 0. How can I do This. I just dragged the table onto the form visual basics data source panel. I have 20 different colums some have 0's, some have 1's adn some ave 2's. While entering the data, well it takes
I'm developing a windows form app in visual studio 2008 express. I'm usin a sql compact 3.5 database on it through the program, several changes are made to database data, and so, i have on form1_closing event, a code to save the dataset back to database, something like:
Private Sub Form1_Closing(ByVal sender As System.Object, ByVal e As System.EventArgs) Me.Validate()
[CODE]................
But when i run my program on the debugger, the changes i mkae, don't get saved, are lost...is this a charecteristic of debugger, or is my "saving code" wrong?
I already built the program, and the data is not being saved. how to saving the data ? by the way, all changes to dataset are made something like this:
I'm using SQL 2008 Express with a multi user VB.NET Windows application. Do I have to add each user to the SQL user account? Does NT AuthoritySYSTEM work? I do not know how this works. So far I have NT AuthoritySYSTEM in the Security-Logins of the Server. But do I have to add it also in the database? In the databse Security-User, I have the following:
This is a simple one, but I haven't seen a way to do it. I have a DataGridView that is bound to a Sql-Server database, and it works fine. The only thing I'd like to add is the row # at the beginning of every row. Yes, I COULD set the first column as "RowNUm" and maintain it that way, but it seems that having the row # on each row should be a feature already provided to us. So, is there a way to have the DataGridView display a row number for each row?
I have a form that has around 4 txtboxes. Data is inserted into these boxes and then a "Save" Button is pressed. I have a GridView added to my form and want to view the entries. The issue I am having is that when I click the save button the data doesn't show up in the DataGridView until I close the application and then re open it.
