Use Cross Join To Show Data In Datagridview?
Aug 15, 2011
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))
[code]....
It is giving me duplicate records.
View 4 Replies
ADVERTISEMENT
Nov 7, 2010
How do you refresh a datagridview in code to show to show new data in the DB?
View 3 Replies
Jan 27, 2010
How to join two tables in dataset and show in gridview using vb.net 2008?
View 1 Replies
Mar 30, 2010
How to show data from my database in datagridview and i can add,edit and delete in datagridview
View 2 Replies
Nov 15, 2011
IS it possible to show data in DataGridview columnwise?????"
View 2 Replies
Aug 11, 2009
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
[Code]....
View 2 Replies
Dec 21, 2010
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.
View 4 Replies
Jan 26, 2011
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.
View 4 Replies
Oct 3, 2010
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 )
View 3 Replies
Oct 7, 2009
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()
[Code].....
View 4 Replies
May 17, 2009
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]
View 3 Replies
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:
Me.BillsTableAdapter.Fill(Me.DoBills_2009DataSet.Bills)
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.
View 7 Replies
Apr 22, 2010
How can i Join two tables in datagrid view? Presently this is the command which still cant work after i tried the sql JOIN command...
Dim cmd1 As OleDbCommand = New OleDbCommand("SELECT * FROM LECTURE_DETAIL WHERE LECT_ID = '" & cmd_lecID.Text & "'", con)
I get the error:
One or more errors occurred during processing of command. ORA-00918: column ambiguously defined
View 6 Replies
Sep 21, 2009
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.
[Code]....
View 8 Replies
Jun 6, 2011
SQL statements:
SQL = "SHOW TABLES;"
Try
conn.Open()
The remarked area works fine when I'm accessing a specific table. I've successfully inserted the products_model field into the combobox too. The datagridview does show the table names in the db using the SHOW TABLES sql statment, but I'm not understanding how to get this info into the combobox instead.
View 1 Replies
Jul 18, 2009
I'm trying to make a process explorer/Blocker.It has two DGV's. In the first DGV it populates a list of all the running proceses.In the second, a list of blocked processes. Using a button, the user can move a process from one GDV to another.This is where I'm stuck.I can only get the position of the cell for some reason when I'm trying to get the text in all the selected cells.
Private Sub Blk_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Blk.Click
Dim isblked As Boolean = False
For Each cell In Allwd.SelectedCells
[code]....
View 1 Replies
Mar 12, 2009
How do you insert/update in a datagridview which is 2 table is bound into it (inner join statement)Best Regards,Iannoob vb programmer
View 1 Replies
May 17, 2012
Iwant to join two tables,'Employee' and 'Dispatch'. Dispatch has column 'DispatcherID' and 'TechnicianID' which are both foregn keys to EmployeeID in Employee table.I want to join these two tables using EmployeeID so that i can obtain the matching name to each id.but it only works when i make a single join to either DispatcherID or TechnicianID and not for both.
[code]
select Employee.firstname+' '+Employee,secondname as Technician,Employee.firstname+' '+Employee.secondname as Dispatcher from Dispatch inner join Employee on Dispatch.TechnicianID=Employee.EmployeeID inner join Employee on
[CODE]...
View 12 Replies
Jan 26, 2010
I am reading two lines of data into an array, the data being split by commas (,).[code]...
View 2 Replies
Mar 3, 2010
Right now I have a listbox, this listbox displays surnames, when clicked it displays their address. I have a 'confirm' button to confirm the right person. And now I need more information to come up when that's clicked, giving data from another table. I'm sure I need to use an inner join but I don't quite understand how to do it
View 11 Replies
Aug 18, 2011
Here is my Scenario
I Have First Datable :TableA
**Item** **Place**
ItemA PlaceA
[code].....
View 1 Replies
Apr 15, 2009
This ought to be relatively simple... I have a Jet database that contains the table of interest, tblCategory. tblCategory has three attributes of interest for this issue: fldCategoryID, fldParentCategoryID, and fldName. There is a self-join from fldCategoryID to fldParentCategoryID (one-to-many). On my form I wish to have a combobox display all the categories available (shows the fldName attribute of tblCategory) and assign the selected value to fldParentCategoryID.
So, my form is based on a dataset that is attached to tblCategory in the normal way. That works just fine. To facilitate the combobox, I created another dataset that simply contains fldCategoryID and fldName attributes and is non-editable - imaginatively named dsLUCategory (dataset lookup Category).
[Code]...
View 5 Replies
Jun 22, 2012
I Have a c++ program that is already completed but has no ineterface. So What I am trying to do is translate the c++ code over to Visual Basic, which is trickier than I thought. I need to browse for a text file, cross reference that with a csv file which will match IDs and replace in the text file, outputting to a textbox to save
View 18 Replies
Dec 1, 2011
I am building a code library to be used by a 3rd party developer. Neither my code or the 3rd party have any UI controls involved. It's purpose is a combination of providing the ability to look up information from a database while at the same time polling it and throwing events when a set of conditions are met. Naturally the only way it's going to be responsive to the 3rd party library's commands is via multithreading since everything in a single thread stops once you start polling the database.
The sub I am using is part of an object that I create in the main thread and attempt to have it run via a thread, when a condition is met I have it update a property in that object, throw the event (or execute a callback in my latest attempt) and then attempt to have a simulator for the 3rd party control read the property.It's easy to setup the multithreading part, the hard part appears to be throwing the event so it is seen in the original thread and the data is available there. Any attempt to do this generates a cross thread error when the data is read.
I attempted to use delegates and calling methods asynchronously and using the callback function but still get cross threading errors.Is my only possiblity to use a background worker, using either the progress changed or runworker completed events? Even then am I going to be able to set the property in the function from one thread and read it in another?
View 1 Replies
Jan 23, 2012
I have three tables: BOOKS(BookID, Title, Author) CLASSES(ClassID, Title, MajorID,BookID) and MAJORS(MajorID, Description). I added these three tables to a LINQ to SQL class (UBooks.dbml) and then connected to the data sources. Then declared DataContext.
Using LINQ, my goal is to display all books in a grid which I have done with:
Dim allBooks = From Books In db.Books _
Order By Books.BookID _
Select Books
Me.BookBindingSource.DataSource = allBooks
Next I need to display all majors in a listbox. I would like the description to be shown however I am only getting the majorID to display with the code
lstMajors.DataSource = db.Majors
I have tried db.Majors.Description, however I am told then that Description is not a member of the LINQ table. and my final goal is to display all the books for whichever Major is selected in another data grid. This is what I am primarily concerned with right now. When using the SQLClient classes, I was able to create a string joining the tables (also had the description properly showing in the listbox, but that is of little importance right now to me). In the video tutorials I was able to watch whenever the tables were dragged from the database into the OR designer of the LINQtoSQL.dbml class file all of the associations were already there and the narrator only really had to do some drag and drop. Not only is drag and drop not working without these associations, but I'd much rather learn the code behind it.
View 4 Replies
Jun 23, 2010
dsNumbers.Relations.Add("compare", _
dsNumbers.Tables("dtVDEOutputNumbers").Columns("jobno"), _
dsNumbers.Tables("dtCSRInputNumbers").Columns("vg_jobnum"))
DataGridView1.DataSource = dsNumbers.Relations("compare")
No data seems to be returned from this command, even though I know there is data present. There is one record per table:
dtVDEOutputNumber: jobno = "24383", vde_pkgs = "328"
dtCSRInputNumbers: vg_jobnum = "24383", vg_quantity = "650"
Not sure why it isn't matching and return a "Joined" record.
View 5 Replies
Jan 22, 2009
I have several combo boxes that have a single Dataset and separate Table Adapter and Binding Sources to fill them.One combo box I have lists the Hispanic Origin of the client.The Data Source is bsCSpopup_HispOrg, the Table adapter name is taCSpopup_HispOrg.Below is the Table Adapter query if you can call it that and selects only the codes I want to fill the combo box
SELECT fcpopkey, fcpoptext, fcpopval
FROM cspopup
WHERE (fcpopkey = 'hispanic.origin')
[code]....
I am doing just fine loading the dispay text when the form loads, and saving the data to the client table, but, when I load the clients values, how do I cross reference the Source data value e.g. 1 to display the text "Not Hispanic" from the cspopup table.
View 2 Replies
Jul 19, 2009
How i clear all data and not delete data or column in datagridview?
View 1 Replies
Apr 6, 2012
How to get the data I want from a datagridview box. Simply Put, What I need to do is get every value from each cell in a row. So if row one is highlighted I need the Name, addy, and so on....from that row.
View 3 Replies
Mar 9, 2010
I fill the DGV by looping through a dataset and adding a DGV row for each datarow. After this the DGV.RowCount = DataSet.Rows.Count. Funny thing is that the DGV shows only a part of it (19 of 2448 in my example). After some testing I figured out that the rows show up if I change the Window size a bit.So now I use a work-around by including the following code after I've filled the DGV:[code]
View 2 Replies
