.net - DataGridView Sort Does Not Work
Nov 9, 2010
Visual Studio 2010 VB.NET
I have a DataGridView.DataSource set to a Collection of custom objects. The columns use read only properties from the custom object for display, this dialog is for display only. The properties all return String objects. I set the columns all but 2 of them to sortmode automatic (the ones that are not set is a button or a checkbox). Yet it does not sort. I have googled around and most people use sql or binding sources but I am using a trivial vb collection. Some say I should implement IComparable but isn't String already IComparable?
Per a request here are some code snippets.
This method defines the columns in detail from columns I designed in the designer.
The column names are called pSelected or pCustomer and corresponds with a property by the same name that the column definition ties to.
Protected Sub UpdateDGVUS()
If Not USColumnsInitted Then
USColumnsInitted = True
[Code]....
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Feb 29, 2012
I am trying to do my sorts such as bubble sort and quick sort i got the bubble sort to work but cant seem to get the quick sort to work.
CODE:
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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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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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Nov 30, 2009
How do i sort a datagridview by several columns?
I want to sort the data in my DataGridView by the Title, Location and Reference, i have the following to sort the DGV by title, how can i include the two other columns in the sort?[code]...
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Sep 30, 2011
I should move in first position rows that begin with My_Number, but my Datagrid_comb is binding. So I have try this:
[Code]....
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Jul 26, 2009
I have a set of data in cvs file such as
bin 1 , 2000
bin 2 , 1000
bin 3 , 4000
[code].....
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Aug 24, 2011
I need to sort datagridview row sorting. There two color in the datagridview rows, some is yellow, some is white. How can I sort them by yellow rows shown first then only show white color rows?
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Feb 5, 2010
i need to sort the DataGridView by date, one of the TextboxColumn contains date in the following format '12-jan-2010' i need to sort by date but the gridview sorts by number
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Aug 2, 2010
how to sort the Datagridview. In my scenario I've a datagridview and this is the code I use to fill it:
vb
...declaration of cmdStoredProc...
cn.Open()
cmdStoredProc.ExecuteNonQuery()
[code]....
So it works very well only if i set AutoGenerateColumns = True.Why this code doesn't work with the autogeneratecolumns property set to false and the runtime binding of each column?
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Mar 21, 2012
I am trying to display a football league table in datagridview. my code gets that data for each column from ms access and displays it in datagridview. I want to sort rows according to the value of the "pts" column.I've tried using using BindingSource.Sort = "pts" but this has had no effect.
[Code]...
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Mar 9, 2012
how to sort my datagridview depending on the value of my datetimepicker. i have used the code below to view my access file into the datagrid
Private Sub showitems()
Dim dt As New DataTable
Dim ds As New DataSet
[Code]....
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Jun 13, 2010
I am using VB.NET 2008 My DataGridView is bound to a DataSet. After adding a DataGridView row (from another form), I needed to sort the DataGridView in order to put the new row in the appropriate place. I needed to be able to identify the current sort column and the current sort direction (ascending/descending) but I was unable to find out how to obtain that information from the DataGridView properties. Consequently I had to do it the hard way via my own coding. The sort column name (or names) and the sort direction then became available to my program in the global variables.
[Code]...
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Oct 25, 2011
I have the below bit of code that allows a user to see data in a DataGridView. They can click on a single row and open another form with the detail of the selected item. Once the user returns from that form I refresh the original screen with anything that might have been changed from the other screen (or by other users elsewhere in the network).
This works perfectly fine to select items, go look a the detail and change anything you like, then return and refresh the screen with the new updated information, with one notable exception. I get a NullExceptionError whenever the user has changed the default datagridview sort option on the first screens grid screen. Then selects and item and goes to the second screen and comes back to the first screen. And the really strange thing (to me) is that the first record on the return gets added fine, it is the second record it tries to add that is throwing the error.
Other notes: all variables have values (not nulls), the tableSelect is also valid and not equal to nothing.
If sqlConn.State = Data.ConnectionState.Closed Then sqlConn.Open()
Dim r As Data.SqlClient.SqlDataReader = sqlComm.ExecuteReader()
If r.HasRows = True Then
[Code]....
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May 16, 2006
Is it possible to disable the "sort function" in datagridview that happens when pressing the header?
I would like display some data that you cant order by clicking on the columheader. Can you lock the headers somehow?
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Feb 27, 2011
Basically, I need to be able to click a row header to sort a datagridview, similar to how clicking a column performs a sort.
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May 25, 2012
I'm moving code from using MSFlexGrid to DataGridView.My programming approach is to leave the total line in the last row of the grid. I prefer not to change this. I successfully handled this with MSFlexGrid by turning off the automatic sort and invoking a manual sort when the header row was clicked. I was able to select the cells I wanted affected by the sort. I selected all cells but the final row and then did MSFlexGrid1.sort. This worked.I have read up on the DataGridView sort. I can make my grids sort and I can turn-off automatic sorting and can force a sort programatically. I have NOT been able to do a sort in a manner that excludes the last row.
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Jan 3, 2010
how to sort data using datagridview in vb.net.How do I do this by making use of textbox to input my query, I'm currently using oledb.
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Jul 5, 2011
Is it possible, out of the box, to sort a .NET DataGridView column using only the keyboard?I understand there is a SelectionMode property, but changing this merely allows me to select, using Shift+Space, an entire row or column, but this doesn't have the same effect as clicking the header with the mouse and causing a sort.The reason I ask is because I am working on accessibility issues and would like to avoid relying on the mouse.
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Jul 19, 2011
How do I sort a DGV by multiple columns.
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Oct 25, 2011
I'm trying to put the names of all my column's (that are in my datagridview) in order by their displayIndex property in an arraylist.
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Feb 23, 2012
I have xml file and try to load into datagridview, how can I save the xml after I sort it by desc? But when I select the row after I sort, the selected row data show in textbox is different from datagridview
DS.ReadXml(Application.StartupPath & "\user.xml")
Dim DS As New DataSet
If DS.Tables(0).Rows.Count = 0 Then
[Code]....
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Sep 28, 2011
I have a datagridview showing data from an Access database. I have dragged the datagridview from "Data Sources" window - and not written any code. In bindingsource I have choose to sort on an autonumber field. Is it possible to let the user use the mouse to change the order, and the database to remember this the next time the user starts the application.I guess I have to have a number field in the database, and write code to change the value in number field as the user change order - and then save this back to the database? Does the datagridview support changing order by mouse at all?
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Mar 26, 2009
How do I sort a DGV by 2 columns? The DGV is not bound.
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Jan 13, 2010
What I am trying to do is sort a datagridview and remove a row from its sorted position to the 1st row.
The problem I am experiencing is as follows:
in the source below, when the code runs "MeanRow" is populated with what is required. As soon as Rows.Remove() executes, the MeanRow datarow is lost. Why would this be if I'm declaring a new variable and simply setting it?
Code:
MeanRow = r
TabGrid(dgv.Name).Datatable.Rows.Remove(r)
Code:
Private Sub dgv_Sorted(ByVal sender As Object, ByVal e As EventArgs)
Dim MeanRow As DataRow
[Code].....
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Feb 26, 2012
I have been struggling to find an answer to this problem:
I have a datagridview1 with 10 columns, 0-9
0-8 are for text, such as name, address, email
the 9th is a dollar amount. I want to sort the whole datagridview by this amount. But, what is happening is that when I click on the column it sorts the values out like this[code]...
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Oct 27, 2009
I have been experimenting with datagridview by designing a bill tracking program. The first challenge I haven't been able to solve myself is how to sort it. I managed to figure out how to save and update from xml but I don't know how to put it in any particular order. Is this possible with it bound, or would I need to write particular code to custom-fill in the date grid? All I am looking for is an a-z sort.
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Jan 28, 2012
I have a column with dates on it and I'm trying to sort it according to that.[code]I tried to use this but it only sorts by the first two digits, dd, and not with the full date.
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Feb 4, 2011
I have a datagridview with its datasource binded to a List(Of T). Now i would like to sort on any of the columns.My code:
'Database access : items = List(BlogPost)
dgBlogPosts.DataSource = items
'My BlogPost Class
Public Class BlogPost
[Code]...
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Nov 10, 2009
I use the streamreader to fill a datagridview. I need to sort the datagridview integer-wise and have tried to use the SortCompare event. To compare the row values i use the function
Public Function CompareIntegers(ByVal value1 As String, ByVal value2 As String) As Integer
Dim int1 As Integer = Integer.Parse(value1)
Dim int2 As Integer = Integer.Parse(value2)
[code]....
Which i call from the SortCompare event with
Private Sub DGV_SortCompare(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewSortCompareEventArgs)
e.SortResult = CompareIntegers(e.CellValue1, e.CellValue2)
End Sub
The event is fired but the datagridview is still sorted as strings.
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