DB/Reporting :: Populate A DataGridView With Data From Two DataTables?
Apr 27, 2009The DataGridView Control only accepts one data source, but there are ways to brake through, ways that I'm not able to find.
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DB/Reporting :: DataGridView Populate With SQL Connection?
May 14, 2010I'm connecting a MS-SQL remotely with VB2008 Express.I defined two different methods - the first one is copied from my old VB6 application, which is working perfectly.In this application, the retrieved data is added to a listview control, not datagrid!
Code:
Dim myconn As ADODB.Connection
Dim MyRecSet As ADODB.Recordset
myconn = New ADODB.Connection
[code]....
The SQL query contain several table, thus I used a "*" instead for the table name- not sure this is correct?
Code:
da.Fill(ds,"*")
Datatables - Arrays - Reads Data From Xml File And Displays It In The Datagridview
Oct 2, 2011I have the following code, which reads data from xml file and displays it in the datagridview. It all works fine:
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Instead of showing read data in datagridview, i'd want to read the data from xml file into one dimensional array: X(Impedances) Or is there a way to read value from this datatable into string variable without getting data from datagridview? The point is: i'd want to scan through all "Impedance" values (which are read from xml file) and compare with value y to catch the nearest value to y. How to do that?
DB/Reporting :: Write A Data Layer Class To Read In Information And Populate Combo Boxes?
Feb 3, 2012I'm trying to learn how to write a data layer class to read in information and populate combo boxes, etc.
View 1 RepliesDB/Reporting :: Iterate Through The Datatables In A Dataset?
Oct 29, 2008We are updating our SQL SERVER 2005 database to reflect the name of our new corporate masters and we need to change the values of the fields.
Once we do so, we will hit those fields with update queries, but right now, my group just needs a listing of the affected tables There are over 250 tables to search, is there a way to iterate through the tables?
I imagine I could search the datatables once I get them, so that part isn't a problem. I just need to know how to set up some code to peek in, record what needs to be changed, close it and move on to the next table.
I've done as much for a single table, but never a load like this.
Join Datatables For Local Reporting
Aug 15, 2011I don't know how to join multiple datatables created in Designer in 1 single Datatable. I need 1 Datatable with all data in it so I can give that single Datatable to one single Tablix in ReportViewer (rdlc). Problem: ReportViewer Tablix can accept only one datatable at time and I need them all at once in one tablix.
How did I get stuck here:* I have added Dataset from Solution Explorer to my Project (ds1). Double click on that item gave me Dataset Designer (ds1.xsd). Here I have created 4 Datatables with all needed columns, mutually connected with parent-child relationships (one to many, nested). dt1 is parent to dt2, dt2 is parent to dt3, dt3 is parent to dt4 (dt1 > dt2 > dt3 > dt4).
On my forms I have binded all my controls to this 4 Datatables and their respective columns so the data is populated hierarchically to dataset (as planed). I have added ReportViewer Control to one form for reporting purposes and Design a new report (rdlc)...As I have read in past few days (read: week or two) I need to Join all my datatables to one single (flated) datatable somehow and then feed that DataTable to my Report.
So basically I have 2 questions: 1. How to join my 4 datatables? Can I do it from Designer or I must do it in code? 2. If I cant do joining from Designer how will I see this new datatable with all columns from my Report? If I wanna add a Dataset/DataTable to my Report I go to Tab Report Data - New - Dataset - comboTo SelectExistingDatasets and if Datatable/Dataset is not created in Designer I can not see it here to add it to work with it.
DatagridView - Populate Data From The Database?
Jan 10, 2012Im new to vb.net and would like to know the very basics on how a datagridview works? how does it populate data from the database? what process does vb follow to update this datagridview? I'm trying to get my head around the following terms and need some explaining how they work and how they are linked? if possible, is there a link to a diagram that explains this?
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Comboboxes Not Updating When Populate Data From DataGridView
Oct 13, 2010I have a form that lists all of the clients in a DataGridView and when I click on a column that is a Link I want the data to populate into the form I use to capture. My problem is that when I click on the link all the TextBoxes on the form are filled correctly but my ComboBoxes are not.[code]
View 1 RepliesDatagridview - Populate Only The Data When Click On The Button Specified
Oct 15, 2011I have form having a button and a gridview. The gridview is ok and generates data. But now, i want to populate only the data when i click on the button specified. Here is my code :
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Populate Data From Dataset And Show In Datagridview
Aug 11, 2009I 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
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Populate Data Into Datagridview With Combox In It And Then Save?
Jun 10, 2011how to populate data into datagridview with combox in it and then save. Using Visual Basic 2005.I have to populate CrewID, CrewName, Address, Position, ReplacementCrew, ReplacementCrewPosition from employees.When the data was populated, I have to click the ReplacementCrew Combox and find the CrewID of employee and display the Position to ReplacementCrewPosition cell. Then save.
View 14 RepliesPopulate A Datagridview With Data - Make The Code Shorter?
May 20, 2010is there a way to make this less in code?Usually when im going to populate a datagridview with data I usually do in this way
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That how I make things harder although there's a function "DataGridView1.DataSource = myDataTable" and put an sql where selecting those data. I just want to use some other method. so how am I able to add some columns row dynamically and if another column of the database need to get how am I able to add it in that loop is there other way and I want the less code nor the shorter code that you can give to me. I just want to learn and make my code more shorter
Populate DataGridView Table With Data From An Access Database?
May 19, 2009I have made DataGridView in the designers and connected an Access database to the datagridvies and the Column headers appear as they should and when I check in preview mode all the fields are correctly populated. However, the DataGrid is not populated in normal mode at all. I have been trying to run the project but nothing is happening. What can I do to populate the field.
View 12 RepliesDB/Reporting :: Link Data In A Datagridview To Textboxes?
May 27, 2009How do I put a large amount of data (we are talking of a datatable with probably 50 columns and maybe 500 rows) from the access database that is bound to a datagridview in my program into textboxes depending on the row of the datagridview row I am clicking on.
What I have in the access database is countries and companies that are attached to several different dates to each company. these dates are supposed to be filled into the textboxes automatically when I click on the company row in the datagridview and also when i fill in a date in the textboxes it is to be written to the access database when I save the update.
I have used the below load code to fill my datagridview. Is there another way or can I use this?
Private Sub MainForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.TCOMHRVT2TableAdapter.Fill(Me.TCOMHRVT2DataSet.TCOMHRVT2)
End Sub
One DataGridView Two Datatables
Jun 10, 2010I am using VB Express 2008 and SQL Server Express 2008.I have one DataGridView on a Windows Form, which I am attempting to populate from two datatables. Both tables are identical in structure, but with data from two different dates. The respective SELECT statements are identical, except for the date; one calls for yesterday, one for today. I need a seperate Sum column from each table.I've tried to JOIN, UNION, and MERGE the tables, but that gives me all the data consecutively and I saw no way to seperate the days. I'm able to add DataColumns, and sum the fields with an expression, but is it possible to create DGV columns and bind them to the seperate DataTable columns? [code]
View 6 RepliesDB/Reporting :: Deleting Rows In Data Base And Datagridview?
May 3, 2010i am working on my first database program. i believe that I am almost finished, except that i have a remove button like i would like to remove just a single selected row both from the datagridview and the actual database. this is just in case any information is entered wrong, and also to delete all the entries i put in just for testing purposes. the only problem im having is in updating the database after removing the row from the datagridview
Private Sub btnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RButton1.Click
If Not DataGridView1.CurrentRow.IsNewRow Then
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DB/Reporting :: Pass Data From A DataGridView To Text Boxes
Jun 23, 2009I use Visual Studio 8 and Sql server for my database. I have a form with a DataGridView where my records are display on from the database and some text boxes. I want to pass the data from a specific record from the DataGridView to the text boxes whithin the RowHeaderMouseDoubleClick function.
View 3 RepliesDB/Reporting :: Reflecting Access Data Modifications On Datagridview?
Jul 23, 2008the access data are not getting reflected on the DataGridView unless the form is reloaded again. I am acessing the MSAcess data for back end processing (SELECT,DELETE)using odbc connection and displayin on .NET form using DataGridVew
View 2 RepliesDatatables Left Join Linq - Joining 2 Datatables And Have The Joined Datatable As Result
Jun 1, 2012I'm having a hard time joining 2 datatables and have the joined datatable as result. First datatable (labels) holds data including a printerid. Second datatable (printers) holds printer references (id > unc). I would like to have as endresult (joined) a datatable with all data from the first datatable with the field (unc) of the second datatable. [Code]
View 3 RepliesDB/Reporting :: Datagridview / Unable To Get It To Refresh With Any Updated Data From The Mdb File?
May 22, 2008I have an Access database that is updated directly in Access. I'm trying to write a program to 'monitor' the database, and have a DataGridView control showing the contents. When the program is first started, it shows the current data in the DB fine, however, I've been unable to get it to refresh with any updated data from the mdb file. I have a timer running on 5 second intervals, and if i clear the dataset, the DataGridView refreshes to empty.
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Creating A Reporting App That Pulls Information Off Of A Sql Database And Populates The Data In A Datagridview Control (DVG)?
Mar 31, 2011I am creating a reporting app that pulls information off of a Sql database and populates the data in a datagridview control (DVG). I am using tab pages (Tabcontrol), and I have about 10 tabs with within the control. What I have done is created a dynamic control that will populate in each tab page once the tab is selected. I am using a split container and in my split container.panel 1 is where all my buttons and search functionality will be. In my split container.panel2 to is where the main DGV control will be. I have got this to function properly, however now I am unable to add anything to my split container.panel1. I would like to add diffrent labels and buttons in the panel1 one without putting another panel on top of the split container.panel1, and also if i do this when I resize my container the panel will just sit there. I am using the selected index changed event to get my split container to show in each of the diffrent tabs
Private Sub searchTab_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles searchTab.SelectedIndexChanged
searchTab.TabPages(searchTab.TabPages.IndexOf(searchTab.SelectedTab)).Controls.Add(splitContainer1)
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DB/Reporting :: Save Button The Data Doesn't Show Up In The DataGridView Until Close The Application
Sep 21, 2009I 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.
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DataGridView, Set Up Columns, Populate Data Table, Bind, But Not Using Columns Created In Code?
Oct 26, 2011I'm using VB.net 2005. I have working programs that I populate DataGridViews with something like the following:
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DB/Reporting :: Populate Listbox With Objects?
Apr 24, 2012I am writing a database using OOP, i have created my classes ect and i am able to input data.
I have four textboxs, and two listbox's. The first listbox lists all the categories which i have managed to do. Now when the user selects a catelgory a list of objects under that category are listed in the second listbox which the user then selects to display any related data and this is the problem i am having.
[URL]
Code:
Public Class BaseClass
' ScrName is the name of the script file.
Public Property ScrName() As String
[Code]....
DB/Reporting :: Using ListView To Populate Database?
Dec 21, 2010I have a database in ms access. I am trying to use a listview to populate this database. I have comboboxes and textboxes that populate the listview. I have tried to just make sure that my database will populate with the combo boxes before I try to code it to populate from the listview. I am running into an error while trying to populate this database. The error I am receiving is the following,
Syntax error in INSERT INTO statement.
The error is occurring in the da.update(ds, "TrapDatabase") line.
Code:
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim con As New OleDb.OleDbConnection
Dim dbprovider As String
Dim dbsource As String
[Code] .....
Data Transfer Between DataTables ?
Jun 14, 2011I have a sequence that reads the selected Excel-file and displays the first row of the columns in the Excel. (The first Excel row has the column names)
Dim cmd As OleDbCommand = New OleDbCommand("select * from [" & tableName & "$]", MyConnection)
Dim dr As System.Data.IDataReader
Dim dt As New System.Data.DataTable
dr = cmd.ExecuteReader
dt.Load(dr)
With the above code I can read the the first rows of the Excel table and choose the names of the columns I like to keep. (By populating the first row to my ComboBoxes)
So, at the moment my DataTable dt has all the table header names but on the first row. And as the header names it has F1, F2, F3, ... F13.
How can I make my new DataTable dt2 take the first row of dt and make it the column names row? How can I choose which columns do I want to transfer from dt to dt2 ???
I have tried the following (Doesn't work):
Dim dt2 As System.Data.DataTable
dt2 = dt.Copy.Columns("F1", "F2", "F3", "F4")
DataGridView1.DataSource = dt2
DB/Reporting :: Create And Populate In Memory Datatable?
Sep 23, 2008Probably a very dumb question but I have a program whereby I create and populate an in memory datatable, which I then add to a data-set. I then run a couple of updates on the dataset and need to know how to then send these updates down into the in memory datatable :Here is a mock up of the code structure following the creation and population of the table :
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DB/Reporting :: Populate A Combo Box From A Table On MYSQL
May 8, 2010I am a developing an application based on VB 2008 express and a MYSQL database.I have created a database called octupus_db and inside it there is a table called customers.I now have a combo box on my form and i want it to populate its contents from field called town inside the customers table. How do do this? [code]but now connection a table and a field with my application is the next night mare, tried .
View 2 RepliesDB/Reporting :: Populate Text Boxes From Database?
Jun 10, 2008I have an Access Database that contains two tables. I would like to populate 10 text boxes on my form with the data from the tables. For example: Table1 has a list of names 1 thru 5 and I would like to have 5 text boxes on my form when the form is loaded to populate those names. I know how to populate a combo box with the information, but not sure how to do it into individual text box
Current Code:
'create connection and command string
Dim conStr As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data
[code].....
Referencing Data In DataTables Using Composite Primary Keys?
Apr 25, 2012i have a project where I need to concatenate strings from 4 different tables based on a sequence of numbers. I created a 5th table that holds the number sequence and dictates in what order the strings get appended. I have created primary keys on the tables, but 3 of the tables are composite primary keys. I have written up to where I start referencing the primary keys, but am not sure how I should reference the keys on the actual tables. I saw some examples for creating composite keys from an array which I did. The main questions are did I declare the composite keys correctly, am I creating the composite key reference from the array correctly, and how should I reference it all to append to the stringbuilder variable.
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And yes I kn ow it would be easier if I used Strongly Typed Dataset, but this is a clr sql stored procedure and have not found any examples on how to add a .XSD to a stored procedure. The add item option is not available, besides a bunch of typing