Sorting Columns In A Listview Object?

Jun 22, 2009

First off i just want to take a bow to all the vb gods out there..I am trying to implement the sorting class form article 319399 in the knowledge base [URl]..on step number 6 it says to "Paste the following code into the ColumnClick event for the ListView:"so i created a sub to handle the ColumnClick event

[Code]...

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Sorting A Databound Columns?

Mar 7, 2012

I have a datagridview in VB.NET in which i have few columns which are data bound . How to sort a databound column which contains names ?

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Sorting By Columns With Datagridview?

Nov 1, 2010

Is it possible to sort a datagridview by column when a user clicks a column header? I have the sort method set to automatic under each column, which from what I read, is what I need. I know this has to be insanely easy....

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DataGridView - Removing Columns And Sorting?

Mar 10, 2009

Is it possible to remove from a datagrid view very first "column" i.e. the row selector and also to remove the ability to reorder the columns ?

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DataGridView Sorting On Columns Not Working?

Apr 28, 2010

I'm using vb 2005, seems sorting is not working if I change the data by code. For example, if I have a simple form with only one datagridview and one button, grid was sorted on column 1, then I press the button to randomly change data in column 2, then use column 2 to sort, the display order is not correct, but after the button click, if I click on a cell, the grid will re-sort by itself, and get the right list. I know DataGridView is not for Editing data...

Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim dt As New DataTable
dt.Columns.Add("C1")
[Code] .....

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Error In Sorting Datagridview's Columns?

Oct 7, 2009

I have a datagridview and all its columns are set to Double Datatype. The problem is when I changed the value of cell and try to sort the column, it shows me an error "Object must be of type Double." I check each cell but all its values are number and I can sort all the columns before I edit one cell. But when I tried to change the value of only one cell and sort the columns, the errors will show. Its weird because I only removed 1 digit of the cell value and I cant sort at all.

Code:
Dim col As New DataGridViewTextBoxColumn
col.ValueType = GetType(Double)

[code].....

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VS 2005 Datagridview Columns Not Sorting?

Sep 23, 2010

I have a datagridview that is bound to a datatable. When the form is displayed, the column headers have no sort glyphs and the columns will not sort.

I don't see a property on the form that controls column sorting - at least not one that's obvious. This is an area of the code that another developer wrote originally, so maybe there's something going on that I'm not aware of.

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Use Custom Comparer When Sorting By Multiple Columns?

Apr 7, 2011

I have a ListView (GridView) that I want to sort by 2 columns, so if 2+ items have the same value in Column 1, it sorts by Column 2. Pretty easy. But empty strings show up at the top when sorting A-Z. I'd like to move them to the bottom. I made a comparer (IComparer) that takes care of this, but I'm not sure how to use it.[code]...

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Columns Of Listview Can Be Resized Automatically Based On Information In Listview?

Feb 15, 2009

I would like to know if it is possible if the columns of the listview can be resized automatically based on the information in the listview?

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Asp.net - GridView SORTING Of DYNAMIC Columns And Data Source Scope

Aug 5, 2011

I re-wrote this to make it more readable. If you want to skip right to the chase, look at the ALL CAPS comments in the code blocks. All necessary code has been included for debugging. I've searched multiple forums (including ASP.NET), and the MSDN library and cannot fix this >.<

[Code]....

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Combing Multiple Columns For Sorting With Generic Member Expressions

May 20, 2011

I've followed examples here and here to create a generic sort with memberexpressions, but how I'm supposed to add a "ThenBy" clause, or combine multiple columns for sorting in the methodcallexpression. Ideally, the ThenBy should go before skip, but it can't because it can't see the orderby clause that I made with the methodcallexpression. GridSortExpression is a Telerik class - it just describes which column and direction the query should be sorted.

Here is what I have right now:
Dim exp As Expressions.Expression(Of Func(Of Product_Catalog, Boolean)) = PredicateBuilder.True(Of Product_Catalog)()
exp = exp.And(Function(e) e.Chapter_Price > 30)
Dim sortExpression As New List(Of GridSortExpression)({New GridSortExpression() With {.SortOrder = GridSortOrder.Descending, .FieldName = "Id"}})
[Code] .....

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GridView SORTING Of DYNAMIC Columns And Data Source Scope?

Jul 9, 2011

GridView SORTING of DYNAMIC Columns and Data Source Scope

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Listview Sorting By ImageIndex?

Sep 14, 2011

Is it possible to out sort a listview by a imagelist index? 0 being the top and 9 being the bottom?

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Sorting A Listview Which Is Not Visible

Mar 26, 2009

I use a listview control which is created at runtime because I don't need it visible to the user. I basically use it to store some information about paths, sort it and then pick out the data I need. It works very well apart from it doesn't seem to sort. For efficiency, I turn off sorting on the listview while the data is being added then enable sorting on the listview at the end. However, the sorting doesn't work. Is this because the listview isn't visible or am I just being daft?

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Sorting Seven Items In ListView

Dec 15, 2011

I tried getting CodeOrder snippet working but it really messup all my tables and such when I try to add for other groups sorting first 3 works fine but when I try to add more everything gets strange.
Here are my snippets:
Form1.vb [URL]
Form1.Designer.vb [URL]

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Original DataTable Object Has Columns Added When Variable Has Columns Added?

Oct 6, 2011

I have a datatable property called prpParametersTable in a class called clsBatch. I have a procedure that sets a datatable variable called dtP equal to prpParametersTable at the beginning of the procedure. I then add three new columns to dtP.Here is my problem. When I add the three new columns to dtP my original table prpParametersTable also gets those columns added to it, why? I only want to add the three columns to dtP and not prpParametersTable. How can I do that?

Private Function prvfnc_InsertBatchParameters(ByRef cnn As SqlConnection, ByRef trans As SqlTransaction) As String
' set new columns that have BatchID, Insert DateTime, and UserID for the SQLBulkCopy method below
Dim clm As DataColumn
Dim dtP As DataTable = clsBatch.prpParametersTable

[code]....

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Sorting Details View Of ListView?

Aug 3, 2009

I am trying to sort my ListView in both ascending and descending order when I click on column headers in Details View. When I click on it, it is able to sort one way, but subsequent clicks don't cause any more sorting to occur. I am attempting to follow the examples shown on the msdn site:[URL].. Here is what I have so far:

[Code]...

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Asp.net - Reverse-sorting A Listview (with Comparer Class)

Oct 7, 2009

I have a two-column ListView linked to a Datapager. The ListView lists all files of a particular type in a particular directory, so the data source is an ArrayList of type FileInfo. Consequently, I had to create a Comparer class to use in the ArrayList.Sort method.

[Code]...

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ListView With Names - Sorting Awarded Scores?

Jan 18, 2011

I have a routine whereby kids do some tests and are awarded scores. These scores are put in a ListView with their names. The snag arises when sorting! It's ok in single figures but at 10 and over it is no go! It is only in the first column that the scores are put. I believe the method is in collections and compares - am I right? So how can this be simply done? In all the bits of code I've managed to get hold of I get lots of words underlined in blue and have no idea what the explanations mean. Some such things are, "IComparer".

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Sorting Data From .text File In Listview?

Mar 9, 2012

I'm using Visual Basic Express 2008 and I need to upload and sort two data text files (notepad) in a listview box. It doesn't have to be a listview box I chose that because it has nice options for columns. Anyway I've got the code set up to open the dialog box and allow the upload of multiple files. I've also got it set up to show separate columns, movie titles and box office amounts, titles in one file box office amount in the other. What I nee sorting the data once it's uploaded so the movie titles show in one column and the box office amounts show in another. Currently everything is showing in the left most column. I'd like to be able to represent the data seperately also so I can format the dollar amounts into currency. Here's what I've got so far:

Private Sub LoadButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles LoadButton.Click
Dim DialogBoxResults As System.Windows.Forms.OpenFileDialog

[code].....

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Sorting Listview Items Mess Upp Code

Oct 27, 2008

I have a listview with items. I have a sorting class to do it. However when something is changeing my Listview control.

There are 3 colums. All items for each column exists in an struct with 3 items, one for each column. I have checked that I have all data in the array. But when I loop trough array of items and add then to the Listview, then many items in column 2 and 3 is not showing up.... This happens only after I have used the sorting class.[code...]

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Code Sorting An Object Within Arraylist ?

Oct 12, 2009

Class Murid
Implements IComparable
Public strNama, strKelas As String[code].....

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Vb.net - Sorting A List Of <Object> With VB And LINQ

Mar 1, 2012

I'm trying out some LINQ expressions and can't get them to work with the List class. Basically I want to be able to sort a list of custom objects by property type, however the C# LINQ syntax is KILLING me and I can't figure out how to convert it to VB

Class Foo
Sub New(Name As String, Position As Integer)
Me.Name = Name

[code]....

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Sorting ListView - W/filename, Data, Time And Size Fields

Jun 11, 2009

I have a ListView w/filename, data, time and size fields. I've copied the code from this article [URL] to use in my solution. Problem is, when I click a column header the first time, it sorts, but when I click the same header a second time, to sort in reverse, the column stays in the same order as it was just sorted in.

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Sorting Objects In Arraylist By One Of The Object's Properties?

Aug 30, 2011

I have a group of objects stored in an arraylist. These custom type objects have a number of properties from their underlying class . I want to use one of the properties to sort the array. I cannot determine which Array.Sort method to use.

I want to sort based on an integer property. Virtually every example I can find involves sorting strings.

So, assume the Objects have the following properties.

Obj.name as string
Obj.ID as integer
Obj.Alive as boolean

The objects are kept in an arraylist called FriendsOfMine.

I want to be able to order the list by Obj.ID, both ascending and descending in value.

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Add Columns To Listview?

Feb 19, 2010

I'm having problems with adding columns to listview. [code]....

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Sorting A Dataview Object Based On A Column Number?

May 10, 2011

I have a dataview object that is being populated by database fields - so I can sort on these partulular columns by specifying the actual column names without any difficulty. However, I have been asked to add a few more columns to the dataview, and these columns will be calculated columns, not directly derived from an underlying database column.The users want to be able to sort on these new columns as well - even though there is no actual column name I can use to sort.

I have not been able to see where I can sort a dataview based on the actual column integer value used when the user clicks the appropriate heading to sort.

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Sorting A List Based On An ArrayList Within A Custom Object

May 24, 2010

I am using a list to keep track of a number of custom Row objects as follows:

Public Rows As List(Of Row)()
Row has 2 properties, Key (a String) and Cells (an ArrayList).

I need to be able to sort each Row within Rows based on a developer defined index of the Cells ArrayList.

So for example based on the following Rows

Row1.Cells = ("b", "12")
Row2.Cells = ("a", "23")

Rows.Sort(0) would result in Row2 being first in the Rows list. What would be the best way of going about implementing this?

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VS 2010 Search Listview: Object Reference Not Set To An Instance Of An Object?

Jan 18, 2011

I'm using the following code to try and search a listview (I got it from msdn):

Dim atem As New ListViewItem = ListView1.FindItemWithText(TextBox2.Text, True, 0, True)

If atem IsNot Nothing Then
ListView1.TopItem = atem
End If

Then I got the " Object reference not set to an instance of an object" error highlighting the following line: ListView1.TopItem = atem So then I tried this:

Dim atem As New ListViewItem atem = ListView1.FindItemWithText(TextBox2.Text, True, 0, True)

If atem IsNot Nothing Then ListView1.TopItem = atem End If it still isn't working.

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Add Columns In A Listview With Data?

Jul 8, 2011

how to add information in to a listview with information from a dss. So far i have managed to get all the information from SQL and now im just in the process of populating the listview.

Im aware i could use a datasouce for this but i want to learn it this way

So heres my code

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim retrieve As New GlobalFunctions

[Code]...

It doesnt throw an error it finishes loading and then presents with me a listview with a vertical scroll bar but with an empty screen....i think i may have got things a bit muddled up

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