DB/Reporting :: Displaying DataGridView Text Column In A Mixed Bound/Unbound DataGridView?
Mar 15, 2011
I have a DataGridView (dgv) on a Windows form (VB.NET) which is bound to a datatable. One of the bound columns is a an ID (Foreign Key) to another datatable. All I want to do is Hide the ID column and populate an unbound column with the Name (ParmName) for the user. I searched the foreign value in the datatable and retrieved the information. I set the Value of the cell in the Datarow. All works well, but does not display. The cell accepts the value...I can even Debug.Print the values to the console. They are there just nothing displaying in DataGridView. Nothing odd about DataGridView. Should be straight forward...
My Code
,
Dim dtParm As DataTable = MyDataSet.tblParameter
Dim dgv As DataGridView = Me.dgvResultNum_DataGrid
[code]....
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Jun 13, 2012
I am populating a datagridview from a datatable and that is working fine. I wish to add some calculated columns from data in the datatable. At first, I did this by adding these to the table, but that makes it difficult to update the Access database. These lines are commented out.Right now, AWt and DOF are not working. The values are there when I step through (lines 85-87), but the values are not put in the grid. The value of NWt is placed in the grid as it should be.Lines 236 through 254 set up the new unbound columns. 85-87 should populate them.
Public Class LotGrid
Dim LotsTab As New DataTable
Dim PurTab As New DataTable
Dim SalTab As New DataTable
[code]....
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Oct 23, 2010
I am trying to transfer the entire contents of an unbound datagridview (excluding the headers) to the next row of a bound datagridview. This is what I have so far but I'm not sure if I'm on the right track or not.
vb.net
Dim rowcount As Integer = dgv1.Rows.Count
dgv2.SelectAll()
[code].....
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Aug 12, 2011
I am adding two unbound calculated columns to datagridview. The columns show up but does not have the calculated data.
Private Sub Top10ToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles Top10ToolStripMenuItem.Click
[Code]......
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May 4, 2011
DataGridView1 is bound to a sql table. Cells(0) and (1) come from that table. Cells(2) and (3) are calculated. While debugging the code, the calculations and lookup look fine, but the results will not display in the columns. Here is the code:
Dim SeatsUsed As Integer = 0
For Each r As DataGridViewRow In DataGridView1.Rows
Try
[code]....
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May 14, 2010
Dim Comp = From C In db.Table1 _
Select C.Completed, C.Taken, C.Namne
Datagridview1.DataSource = Comp
Am using the Entity Framework and Columns Completed and Taken are of bit Datatype. When the query results are displayed in the datagridview, these bit columns are returned as of ColumnType Textbox - so i get a Datagridview textbox column with true or false string values.
I want to display Completed and Taken as Checkbox columns (either ticked for True or un-ticked for false) but ofcourse i can't do this in EditColumn dialogue because the Datagridview is unbound.
how can i change this in code at runtime
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Sep 8, 2011
I have an unbound datagridview that I populate with data. When the user clicks on the column head the datagridview is sorted - which is fine for alphabetic fields but I have a column that contains numeric fields and goes from -100 to +100. This is sorted incorrectly by the number (all the 1s first then all the 2s and so on, ignoring the minus sign). How do I get it to sort my column numerically?
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Apr 5, 2010
Let's say that I have a DataGridView(myDGV) which I populate as follows:
'...
Dim strSQL as String = "SELECT col1,col2,col3 FROM myTable"
'....
myda.Fill(myDtb)
myDGV.DataSource = myDtb.
'The above code fills the DGV with data from the underlying query
'of the DataTable.
'Supposing that I want to add an unbound Column to the end of the DGV which appears together with the data returned by the query, is it possibe?
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Jan 10, 2011
I have a DataGridView bound to a binding source. I have also, however, added an unbound column in which I plan on putting numbers calculated from the bound columns. The problem is, Any time I edit my unbound column (on any row), the value doesn't stay. If I programmatically edit the values, they never show up. If I type in the cell, then upon hitting enter or clicking outside of the cell, whatever I typed disappears.
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Jan 3, 2010
I am trying to put an unbound button in the last column in a DataGridView control and it appears way, way off to the right when I run the app. I have to scroll all the way to the right to get to the buttons and then manually resize them to show up the way I want them to. I am using the Edit Columns feature found in the Smart Tag of the control. It works ok when I place them anywhere else in the columns! It only messes up when I try to place them at the end of the columns.
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Mar 10, 2010
I have a form and in that form is a datagridview listing information from a table in a database. The datagrid is setup as read only and the user is unable to move the columns around. The purpose of the datagrid is to allow the user to select entire records and press a menu button that does some action on them. To make it easier to use the very first column in an unbound data column that I fill with a number representing the row count so 1,2,3,4.... this makes it easier for the user to count how many rows he has selected.
The problem is that the unbound column moves to the last column in the datagrid at random times.This only happens in development not after the application has been deployed. Its annoying because lets say I go in to add a label or change a menu item on the form that has nothing to do with the datagrid I have to make sure that the unbound column hasn't moved.Has anyone else had this problem mixing bound and unbound columns in a datagridview.
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Jun 28, 2010
I add several unbound columns to datagridview,i've succeeded to copy data from other datagridview to this unbound dgv and also got save database from unbound datagridview to database using tableadapter.insert worked .But i can't figure out how to display the data back into the datagridview with existing column..I've tried using this way :
Try
Dim cn As OleDbConnection = New OleDbConnection_
("Provider=SQLNCLI;Server=.SQLEXPRESS;Database=salon;Trusted_Connection=yes;")
cn.Open()
[code]....
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Oct 10, 2011
Apparently, an unbound datagridview control cannot be filled at design time, so I have to create rows + fill cells through code. Currently, I use the following type of code to refer to cells:
[Code]...
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Jul 25, 2009
I am creating a DataSet:
objSQLCEConnection.Open()
objSQLCEDataAdapter.Fill(objSQLCEDataSet, sSQLCETableName)
Then populating a DataGridView with the data:
DataGridView1.DataSource = objSQLCEDataSet.Tables(sSQLCETableName).DefaultView
I have a string field, EventAction, that is in the database.I want that column to be a combobox column.I want to add the different EventActions to the list and let the user select the action they desire.
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Feb 1, 2011
I have seen multiple examples on google and on these forums about how to do this. It seems there are two approaches:
1 - Add the column directly to the DGV and populate it
2 - Add the column to the underlying dataset
[Code]...
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Dec 29, 2009
I am creating a form to display data in a DataGrid that is bound to a .mdb Query. I am semi-experienced in VB6 Programming, but relatively new to VS8 and all of the features. I created the form, and have the DataGrid that displays all of the info in the query. I would like to be able to filter the form to only display data that matches what the user would type into a text box on the form (I have a text box created as well as a command button that says "Search by...").
Additional Info - I do not have, nor do I want, the DataGrid Navigator displayed on the form.
I want the user to be able to type a value in the text box (Rack Number), then press the button (Search by Rack Number) to only display the data in the DataGrid that corresponds to the rack that matches the text box.
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Mar 2, 2012
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
[Code]...
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Mar 11, 2012
I am trying to sort text (File name and path), by having a listbox with just file name and and a datagridview with two columns filename and path.
The listbox sorts it differently from the datagridview. Mainly this is where there is a ' ie listbox puts "you're" before "you are" where the datagridview puts "you are" before "you're".
I thought I would just sort using datagridview and then read from datagrid and add to a non sorting listbox, but this did not work although the datagridview shows sorted, when you go through and a loop, reading each row to add to listbox they end up the same order they where originally put into the datagridview befrore sorting.
What I want is a sorted list of file names only, which will be obtained from several folders and then when clicked with be able to extract the complete path and filename.
I have code with a listbox and datagridview which works ok if I remove any files with ' in them.
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Oct 7, 2011
I need to display an two-column editable grid not bound to a database. I took a look at ListView with Mode=Details, but it appears that only cells in the first column can be edited. I then took a look at DataGridView, and am having two issues:
1. When editing a cell, it adds a new row: [url] How can I prevent this?
2. I don't like the grey background and would like the grid to fill the whole space, right and below.
BTW, if you know of a good tutorial on using the DataGridView unbound, I'm interested. [Code]
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Jun 26, 2009
I've got a DataGridView that has a DataTable as it's Datasource. Whenever I sort a column and then edit a cell, after editing the column, the column autosorts so the recently edited cell is no longer in the viewable area. Is there any way to prevent this auto sort from happening and only sort when I click on the columns?
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Mar 11, 2010
A datagridview is sorting numerical values (when clicking the datagridview column header text) in the wrong order based on the initial digit:
[Code]....
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Jul 13, 2009
I have 5 column in my unbound datagridview. after user enter all the values i want to save the content to the text file. I want to save one row as one line of text. Then if user open a gridview and enter dataon it then the new data should append with the previous data in text file. Is that posible to do. How can we do this
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Jul 28, 2011
I have a datagridview that is populated from an Oracle 11g DB. What I would like to do is add the values of a column together and display the results in a textbox. What would be the easiest way to do this?
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Nov 12, 2008
I have a datagridview and has two columns(UserName and Age), what want to do is to get the UserName that has lowest Age.
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Oct 27, 2008
I had a DataGridView that was bound to a Table in my typed DataSet. I recentyl added a new column to the table in the database and updated the table in the DataSet accordingly.Now, when I go to the DataGridView to update it, the new column does not appear under the "Databound column" list. I tried setting the data source to "None", then reselecting it. Still, it does not show the new column. I then deleted the DataGridView and re-added it to the form. Again, same result. However, when I select the data source, then click "Preview Data", it show the added column.
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Apr 22, 2011
I have 3 columns in a unbound datagridview, "length" "height" and "Total". Total = length x width and the final total in TextBox outside of the Grid. I found question simalar in this forum and tried the code but i am getting errors.The following is the code i am using
Public
Class Form1
Dim UnboundColumn[code]...
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Mar 23, 2011
I bound datagridview to bindingsource. The bindingsource has its datasource a collection Called Rates which is a collection of Rate items. The rate object has a property called VALUE. I need the user to be able to edit different values for the collection; However, on the datagridview, i need to keep displaying on one column called OldValue the existing Rate value before the change while allowing the user to edit that value in a second column called NewValue.
In other terms, One colum OldValue will keep the existing values from the DB before being edited by the user, this column OldValue is readonly. Another column NewValue will display, the 1st time, the old value from the DB (similar to OldValue when we do the Fetch from the DB), but it`s editable column, so the user can modify each value in the column NewValue without overriding OldValue cells. For now, I bound both columns OldValue and NewValue to the same property VALUE of the Rate object,
[Code]...
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Mar 3, 2008
I'm retooling an app, and condensing my queries down to one, but to do so, I would like to move the columns for better presentation. I am reporting on errors for particlular equipment, and the user may want to get equipment by errors or errors by equipment. Is there any way to change column order?
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Dec 4, 2009
I have a few classes, one is a form, the other is the source of the datagridview. I want to be able to sort the columns of the datagridview by clicking on the header. Here are the classes that I am dealing with:
Imports DiscoveryByte.AddTools.Misc_Tools
Public Class ViewDiscoveryFlashCards
Private DBBindingSource As New BindingSource
[code].....
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Apr 15, 2008
Two quick questions about datagridviews... I have an unbound dgv and I'm trying to do some simple formatting but sadly my .net knowledge is limited at best. I'm trying to make a balance sheet and I need to do two things:
1. How can I set row(d) to sum row(a:c) for each column (for multiple years of financials)
2. Is there anyway to not only make a row readonly, but make in unselectable (to skip totaled rows)?
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