I have data copies from datagridview1 to datagridview2 the data in datagridview2 I'm trying to figure out how to take specific columns and copy there contents over to another panel where that data will be put into labels, textboxs, comboboxes. I first did it with another datagrid but its far to crowded to hold all the controls along with the data. Below is and example picture of what I'm trying to recreate from a webpage we used to use but on a winform they now want to use, this shows 1 product however if datagridview2 has multiple entries then this would show multiple lines..etc
I have no idea how to go about this or if its even doable.
I'm thinking maybe the form generates a table layout view control with all the columns, adds rows depending on amount of rows from datagridview2 and generates the controls needed in each row for each cell from datagridview2. I may be entirely wrong there, but I'm reaching the end of my knowledge on doing something like this, so here I am to be schooled =)
Related
Just after some ideas on the best way to create additional tabpages dynamically within a tabcontrol and also to then add the relevant data on each tab with a datagridview.
The tabcontrol will always exist, but I'm not sure whether to initially create the additional tabpages first by identifying the distinct data in SQL, and then run a further script to extract the data, which then needs to be added to the datagridview, or whether I can use vb.net to create the distinct tabpages and add the data from one table, as below.
I can add another tabpage dynamically but not sure the best way to do it for a list, that is extracted from SQL.
Hope that makes sense. Thanks
TabCode
TabName
DataName
DataType
1
One
Test Name
Text
1
One
Test Date
Date
2
Two
Test Value
Value
I've managed to create new tabpages, but only single instances as not sure how to create them from a list extracted from SQL. I'm then struggling to add the data to the relevant datagridview, which I envisage would be created with a name linked to the tabpage name.
I have a form that gets populated with rows of data from a database. I want to add a listbox to each row for the user to select a letter grade. When I run the form all the data looks correct, but if I update a single listbox all the listboxes in the form update to the same value. It seems like the listboxes aren't independent of each other.
An unbound control will always display the same on all records.
For individual display, you must bind it to a field of the record - or redesign your form in some way.
I want to populate a DataGridView Grid in my Form with Data from SQL Query or from some Table form Database. I want to know various possible ways to populate the DataGridView Grid.
Thanks in advance.
There are basically 3 ways to display data in a DataGridView
Create the rows manually in a loop: it's very inefficient if you have a lot of data
Use the DataGridView's virtual mode: the DGV only creates as many rows as can be displayed, and
dynamically changes their contents when the user scrolls. You need
to handle the CellValueNeeded event to provide the required data to
the DGV
Use databinding: that's by far the easiest way. You just fill a
DataTable with the data from the database using a DbDataAdapter, and
you assign this DataTable to the DGV's DataSource property. The DGV
can automatically create the columns (AutoGenerateColumns = true),
or you can create them manually (you must set the DataPropertyName
of the column to the name of the field you want to display). In
databound mode, the DGV works like in virtual mode except that it
takes care of fetching the data from the datasource, so you don't
have anything to do. It's very efficient even for a large number of
rows
Link.
Hi I'm using Visual Basic 2008 Express Edition, so I have a combobox that gets filled with items from a data base made with Microsoft Acces, the combobox is filled with the values stored in a column from a table in de database so the user can select an "option" from it, I want to add labels that show the values for the corresponding row of that column. I used the Data Source panel to drag and drop the labels corresponding to the values that I want and it works it show the value that I want when I compile the application (at least I think it does, it could be that it's only selecting the first entry) the problem is that when I select a diferent entry on the combobox the labels don't refresh with the new values. How can I do that?
edit
Ok soo I guess my real question is how does Visual Basic Populates de combobox and gets the value of the other Acces DB entrys to change the .text value of the labels? And I mean the actual code that does that.
See if this helps at all
Put some code in the on_click event of the combo box to change the label captions appropriately.
Ok I figured it out, apereantly Visual Creates new data sources each time you drag and drop an item from the Data Sources Panel so all you have to do is make sure that VB is using the same data source used in the combo boxes and the labels so they will update automatically when you choose an option from the combo box, I did it by finding the proper elements in the Form1.Designer.vb file of my project and editing 'DataBindings.Add' property of the labels.
I have two tables that are related to each other in a 1-1 relationship (each row in the main table has exactly one corresponding row in the second table).
I also have a winform in which I'd like to show the main table in a datagridview, and for each row selected in the grid to show the fields of the corresponding row of the second table in various textboxes below the grid.
I know how to bind a datagridview to a datatable. But I'm not sure about binding several textboxes to a single row in the related datatable. I don't know what is the best way to implement it.
I'm writing in VB.Net (but can read some code in C#), using VS2008.
Any help, hints or ideas will be welcomed. Thanks.
Best way to do it is that instead of using two tables, use a join and get result in a single table, bind that table to gridview, and hide columns which you don't want to display to user.
And then use cell click event of gridview and then get the index of selected row and then use
txtBoxName.Text = GridViewName["col_name",e.RowIndex].Value.ToString();