.NET Excel Column Sort?
Apr 15, 2012
I am reading an Excel file into VB.NET. There are 4 columns containing dollar figures of varying amounts. Here is what I need to do is identify the columns with the highest $ figure, the next highest, etc. and mark them so that .NET can identify them (e.g. col3 is highest so rank1 variable is "col3" and so on).So I am dealing with Excel Ojects which is new to me and sorting which is new to me. If it helps, here is how I am reading in the Excel file:
xlsWorkBook = xlsApp.Workbooks.Open(folders(f).ToString & "" & fileInFolder.ToString)
xlsWorkSheet = xlsWorkBook.Worksheets("Sheet1")
Dim ColumnNumber As Integer = xlsWorkSheet.Cells(1, StartColumn).Column
[code].....
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Sep 24, 2010
I have a range in excel and I want to be able to sort it by one column programmatically.
There is range.sort, but it has a ridiculous about of parameters and I cannot get it to work.
Surely there must be something to be able say I want this data to be sorted by this column?
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Feb 13, 2012
It seems that on clicking datagridview column header, the column will be automatically sorted based on the column type. I have a column showing some numbers. If column type is string, it sorts "1","20","3" into "1","20","3". If column type is double, it sorts into "1","3","20" which is the result that I want. However, there might be some erros in the numbers and error messages(text) will show in the cell instead of numbers. So I cannot set the column type as double. I want to ignore these error messages and sort all the numbers. How can I do this?
Also, I need to add some background colors to different rows in datagridview. So in the column header click event, I call the bkgColor Sub to achieve this. My question is that how can I override the sorting method in this event?
Private Sub DataGridView1_ColumnHeaderMouseClick(sender As Object, e As System.Windows.Forms.DataGridViewCellMouseEventArgs) Handles DataGridView1.ColumnHeaderMouseClick
Try
[code]....
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Sep 6, 2009
In my form I have several datagrids.
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Dec 20, 2009
is this possible To loop through the column one entrys and then rearrange by there values?
example all column one is date entrys
12-11-08
12-07-08
and so on and reshuffle the listview?
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Jul 26, 2011
I have coded my program so that when a user clicks on a column, the data is sorted in ascending/descending order.When I go to click on a column header, however, nothing actually happens.I dont get an error or anything.Here is the code that I am using to sort the records in the GridView:
Property GridViewSortDirection() As SortDirection
Get
If IsNothing(ViewState.Item("GridViewSortDirection")) Then
Return SortDirection.Descending
[code]....
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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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Apr 15, 2009
I have a class for example:
Public Class Employee
Private mName As String
Private mSalary As Double
[Code].....
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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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Oct 3, 2009
Dim array1(9,2) as String
So basically, 10 rows and 3 columns and say I want to sort them by the values in the 3rd column.
Each row is essentially a record of data and must be kept together.
Now I know that you can't use the array.sort method but would I have to use a bubble sort or something for this?
What's a good way to manipulate the records while still keeping each row linked together somehow.
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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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Mar 2, 2012
I want create a datatable .In this datatable 2 coloums are percentage and marks .I want to show the maximum percentage record display on first and simultaneosly another racord ?Thats why i take a dataview but dataview could not sort the datatable exam.
Dim view As DataView = dt.DefaultView
view.Sort = "clm_percentage DESC"
dgvStudInfo.DataSource = view
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Nov 5, 2010
I got a gridview which auto generates columns. One of the columns is a date field.Somehow, i cant sort the date field. It's being interpreted as a string.The data comes out a database. The datatype there is set on datetime.his is the code in the aspx file:
<asp:BoundField DataField="date" HeaderText="date" SortExpression="date" DataFormatString="{0:dd/MM/yyyy}" HtmlEncode="false"/>
[code].....
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Oct 6, 2009
I have lines like this
( Pin ) [ Probe ] Length = in.
| From | To | From | To
Length|Ga|Color |(b r c )|(b r c )| X Y | X Y
[code].....
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Mar 7, 2011
I want to just sort one column in a listview control. Is this possible or are all the columns tied together?
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May 20, 2009
i need to do a macro. this is what my excel looks like
1 2 3 4
seq1 name name seq2
abcde vv1 abcdddd
abcxy vv2 abcdlmn
[code]....
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Aug 2, 2010
I support a .Net 2.0 Windows application that has a custom listview control to allow for greater flexibility. I am not allowed to bring this to a newer version of the gramework until next year. We are moving from XP to Windows 7, and we have identified an issue with how the column sort image (up/down arrow) is drawn to the listview. Currently in XP, the image is drawn to the right of the column's text. However, in Windows 7, I am getting Access Violation Exceptions. Now, I know that the error is with the improper handling of memory using the unmanaged code as shown below. I am looking for a method to mimic what we have below in a safe manner using managed code.
[Code]...
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Jun 10, 2010
i have a GridView bound to a DataView. Some columns in the DataView's table are foreignkeys to related tables(f.e. Customer). I want to enable sorting for these columns too, but all i can do is sorting the foreignkey(fiCustomer) and not the CustomerName.
I have tried this without success(" Cannot find column ERP_Customer.CustomerName "):
<asp:TemplateField HeaderText="Customer" SortExpression="ERP_Customer.CustomerName" >
A tried also the DataViewManager, but i've a problem to detect the table to sort:
Dim daCharge As New ERPModel.dsERPTableAdapters.ERP_ChargeTableAdapter
daCharge.Fill(dsERP.ERP_Charge)
Dim viewManager As New DataViewManager(Me.dsERP)
[Code].....
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Jun 1, 2010
I created a DataGrid by dropping a DataSource on my Form. When I run it in debug, it works great.
My question is:
When I click on a column to sort by, ascending or descending, how can I tell which column was clicked on, and whether it is ascending or descending?
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Sep 4, 2009
how we can sort a listview by a column without click event?
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Aug 22, 2009
I have text file whic look like this[code]...
I want to swape the lines based on second and third column.. I must first swape based on second column in decending order wher the big number will come first. Like here the lines with number 30 will come first followed by 28 and so on. Then i must swape the colors. Like all the Black will come first follow by[code]...
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Mar 23, 2012
I need to sort a datatable. I do it with linq this an example
Dim query = From c In dt.AsEnumerable _
Order By c.Field(Of DateTime?)("LastPurchaseDate"), _
c.Field(Of String)("LastName") Descending
Dim dv As DataView = query.AsDataView
But my problem is that i need to sort the fields not by passing the name of the column but the index of that.
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Feb 3, 2010
I have a Listview with two columns. The second column contain strings and I want to sort the listview rows by the string length of the second column.
[Code]...
The problem is that I can only find examples of sorting in alphabetic order (with IComparer). Does anybody have an example?
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Mar 13, 2012
I have use this code to view my database into my datagird
Dim dbPath As String = "Provider=Microsoft.Jet.Oledb.4.0; Data Source=../VG.mdb;Persist Security Info=False"
Dim dt As New DataTable
Dim ds As New DataSet
Dim da As New OleDbDataAdapter
da = New OleDbDataAdapter("Select * from Marriage", dbPath)
ds.Tables.Add(dt)
da.Fill(dt)
Now every time I visit that form I have to manually click the column header of "EventDate" to that it will sort Descending. Is there a way to automatically sort it every time I visit this form?
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Mar 18, 2009
I found these files code on CodeGuru and tried to add the code to a .net project but i got to many errors to debug.
I am not sure but i think it is VB6 perhaps.
[URL]
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Jan 21, 2010
I have total column in gridview in which data should like
302(33)
790(126)
936(69)
1649(132)
718(71)
973(101)
1535(165)
0(32)
When I sort this column I got result like :
973(101)
936(69)
790(126)
718(71)
302(33)
1649(132)
1553(159)
0(32)
I need output like this :
1649(132)
1553(159)
973(101)
936(69)
790(126)
718(71)
302(33)
0(32)
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Jul 9, 2011
I have a VB 2008 connected to my localhost SQL using DataGridview, BindingSource and DataTable. All works fine, i can add, edit and delete the row and the SQL database is also affected.
However, there is one thing that bugs me, that is sorting.
Problem My table in this database is still quite empty, it only has 6 rows
However, if I spam-click the column header, the sorting seems taking some time to sort, so that, the sorting result does not follow my mouse spam-clickings
Note: Spam Click = Clicking the mouse button in high frequency, something like click click click click click click click click click, etc
I then make a debug button to check this
Variables:
Dim DebugInt As Integer = 0
Dim bs As New BindingSource
[Code].....
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Dec 10, 2010
I want to sort my datatable column(0) alphabetically, but cant seem to find a way to do it. Just to give you an idea:
[Code]...
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Jan 19, 2012
I have a table with two columns, date and time. I am using the following code to sort in descending date order.
VB
If historydataGrid.Rows.Count > 0 Then
'if there are rows, sort by date (most recent first)
historydataGrid.Sort(historydataGrid.Columns(0), System.ComponentModel.ListSortDirection.Descending)
End If
Where Columns(0) is the Date. However, how difficult is it for me to then sort secondarily by time. So that the grid will sort by most recent date and time.. Working down from the most recent time on the most recent date, and then moving backwards towards the oldest date with the oldest time.
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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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