VS 2008 Sort Datatable Column(0) Alphabetically
Dec 10, 2010I 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]...
ADVERTISEMENT
[2008] Sort Listbox Items Alphabetically
Feb 24, 2009How can i sort my Items in a Listbox by Letter.
View 1 RepliesSort Datatable In .net With Linq By Column Index?
Mar 23, 2012I 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.
VS 2005 Sort Data New Column Added To DataTable?
Feb 21, 2011I am creating a datatable and then adding a column to it which is filled with data from existing column and parsed into correct format DateSold is my existing column from my datafile and I create NewDateSold by adding the column to the existing table and then parsing the information in date format.
This is added to a binding source which then is used to populate a combobox I want to be able to sort the combo box by NewDateSold Desc I was able to this on the original column by simply using the "order By" in my query, it seems now that I added new column it is no longer sorted? I am finding different solution such as using dataview and wish to know the best way to do this
Sort ListView By Image.Index If Index Over 4 Sort Rest Alphabetically
Apr 12, 2012Currently my ListView sorts items by image.index. So 0 is at the top, then 1, 2 and so on. Think of it as an IRC chat room nick list. Ops at top then the rest are sorted alphabetically
[Code]....
Asp.net - Sort DataAdapter Alphabetically ?
Nov 30, 2010This should be a fairly simple one. I am creating a dataset which will contain a description field which I would like to sort by. The reason I want to sort the dataadapter and not in my SQL is that I am already ordering by the results that have a particular value.My SQL looks like this:
SELECT pif_desc, pif_fund, psf_end, (CASE WHEN SUM(pmi_units) IS Null THEN 0 ELSE SUM(pmi_units) END) As fundunits
FROM tbl_mem INNER JOIN tbl_sfunds[code]....
I want to sort the datarows is ds.tables(0) by pif_desc but still have the rows with fundunits > 0 listed first. how I can achieve the correct ordering.
TreeViewNodeSorter Sort Alphabetically
Oct 4, 2011I have been attempting to work the TreeViewNodeSorter into a treeview. I essentially need the first level of the tree to be sorted by two things: 1) In the tag of each node there is a zero (0) or a one (1) - I need the zero, then the one to be the first sort order. Then I need it to sort alphabetically after that. How can I do this?
View 10 RepliesSetting A DataTable Column To A Date Format To Sort Correctly
Dec 1, 2011First off a great piece of code [URL] you saved me soooo much time. I am a somewhat newbee to VB2010 and was wondering how would i go about setting lets say setting column(4) to a date format so that i can get it to sort in the correct order.
View 8 RepliesAlphabetically Sort A Generic List (Of String) In .NET?
Dec 1, 2009I've created and populated a generic list of strings like this:
Dim MyList As New List(Of String)
MyList.Add("Beta")
MyList.Add("Echo")
[code]....
Now I want to order it.
Alphabetically Sort Letters Shown In List?
Jan 20, 2010I am working on the old hangman game. I am up to a part were I have to use a sort button to alphabetically sort the letters already guessed that are showing in the list.
I have found this code:
Array.Sort(strLettersGuessed)
lblGuessed.Text = ""
For i = 0 To strLettersGuessed.Length - 1
lblGuessed.Text = lblGuessed.Text + strLettersGuessed(i) + ", "
[Code] .....
The problem I am having is where the flow chart asks us "is the letter at counter < the letter at counter -1? In my above code I am trying to answer this with this line:
If intCounter < strLettersGuessed.Length - 1 Then
I have tried about 50 different things in place of intCounter as well as strLettersGuessed.Length -1 and nothing seems to work. Sometimes I get an error stating can't be infinite, etc or I get no error at all but the sort button doesn't work.
DataView.Sort - DataView.Find On A DataTable That Is Already 'ORDERED' By The Column
Nov 20, 2010If want to do a DataView.Find on a DataTable that is already 'ORDERED' by the Column I am seaching, so a DataView.SORT should not be necessary, but it throws an Exception if I don't give a .sort command before the .find command. Is there any way to avoid this apparant duplication ? and speed up the search time. Its a very large table - 1 million rows. I am using VB 2010
View 6 RepliesVS 2008 Go Through A Datatable And Sort Records That Fall Within A Certain Criteria, One Being Distance?
May 21, 2011I am trying to go through a datatable and sort records that fall within a certain criteria, one being distance.I have a function that will get the distance between two points based on Lon/Lat and my records in table have Lon/Lat Values
exisitng code
Dim dtrow As DataRow
Dim lat As Double = CDbl(34.213209)
Dim lon As Double = CDbl(-118.629276)
[code]....
I can I now use the function to filter records in table that are with a certain distance?
VS 2008 - How To Sort Numeric Column In GridView
Jan 21, 2010I 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)
VS 2008 Clicking Column Header To Sort?
Jul 9, 2011I 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].....
Have A Datatable Which Has 5 Column : Copy Only Its 2 Column In And Save It Into New Datatable?
Mar 15, 2009I have a datatable which has 5 column. It is possible to copy only its 2 column in and save it into new datatable.I used this code but it copies all the 5 column
Code:
Dim qry As DataTable = (From obj In temptable Where obj.Item("Column1") = 0 _
Select obj).CopyToDataTable
i used this one but it is not supported
Code:
Dim qry As DataTable = (From obj In temptable Where obj.Item("Column1") = 0 _
Select obj.item("Column1"), obj.item("Column2")).CopyToDataTable
VS 2008 - How To Add Third Column In DataTable
Jan 29, 2010I have following codes
str2 = "select sno,name from employees where sno =" & Val(Me.TextBox1.Text)
cmd2 = New SqlClient.SqlCommand(str2, con)
da2 = New SqlClient.SqlDataAdapter(cmd2)
dt2 = New DataTable
da2.Fill(dt2)
Now dt2 has two columns as sno and name
But I want to add a 3rd column city type char(80)
Datagridview - Sort Datagrid View Column With Numbers And Texts On Column Header Click?
Feb 13, 2012It 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]....
VS 2008 - How To Get Unique Values From Specified Column Of DataTable
Jun 16, 2009I'm trying to make a method that can get unique values from a specified column of a DataTable. The problem is that the column may be string, integer, etc. I'm not sure what type of variable the (Of T) is.
Private Sub GetColumnUnique(ByVal dbTable As DataTable, ByVal ColumnNumber As Integer, ByVal ColumnType As ???)
Dim results As List(ColumnType) = (From item In dbTable.AsEnumerable Select item.Field(ColumnType)(ColumnNumber)).Distinct.ToList
End Sub
VS 2008 Set The Textbox Autocomplete Source To Specific Column In Datatable?
Mar 26, 2009how to set the Textbox autocomplete source to specific column in my datatable?how can i do that?
View 13 RepliesHow To Sort A DataTable
Jun 22, 2010I'm trying to sort a DataTable using the following code:
Private Function sortDataTable(ByVal dTable As DataTable) As DataTable
Dim dView As New DataView(dTable)
dView.Sort = "Field ASC"
Return dTable
End Function
But it doesn't work. What is wrong? How can I sort the DataTable?
.net - DataTable Sort Test?
Jul 22, 2010I was asked this question recently in a test, which I didn't pass. For the life of me, I couldn't spot what the problem was. It's probably something really obvious as well, but even a colleague of mine couldn't spot it either. The best I could come up with was issues with bottlenecks and naming inconsistencies of parameters! I blame it on the fact I've not done any vb.net for years, I've been doing C# mostly these days
[Code]...
The question: This function, although it will successfully sort a datatable, has a major problem with it.What is the problem? Re-write the function in either C# or VB.Net using LINQ.
How To Sort By Columns In A Datatable
Sep 1, 2011I currently have a datagridview that is built from a datatable So lets say we have 6 columns
A B C D E G
So the users will select there data from another program and paste into the the table. So lets assume that the data that is pasted is; (the column names are automatically put in)
A B C D E G
123 456 789 101 112 134
So the table will now look like following (I remove the first row because its the same as the column name)
A B C D E G
A B C D E G
123 456 789 101 112 134
My problem is that the users can rearrange thier tables(column index) so lets say user A has the table in this format
A B D E C G
123 456 101 112 789 134
So when they paste into the program, it will look like
A B C D E G
A B D E C G
123 456 101 112 789 134
So now "C" "D" "E" are incorrect and i need to swap those columns to be the same as the column name. I'm not sure how to attack this problem.My thoughts were to paste the data as is, than see what the first row in each column equals.so if it equals "A" assign it an index 0
B 1
C 2
This seems theres too many steps and will slow down the app...
Sort A Datatable Before Filtering?
May 7, 2010I have a piece of code that filters a datatable based upon the cumilative value of records in a particular field. In short i specify a number and the filter counts through the records (rows) in the datatable and select the records that together are either exactly equal to or do not exceed a specified value (defined in a combo box on a form).[code]...
View 1 RepliesCreating A Sort Expressions For Datatable?
Feb 2, 2010I have got a datatable which contains many columns in which three are main:
hotelid
dshotelid
hotelname
Some hotels contain only dshotelid, some contains only hotelid and some contain both dshotelid and hotelid.
I need sort in such way so that those hotels who got both dshotelid and hotelid should be on top and then those hotels who have got only dshotelid and at last those hotels who have got only hotelid...
create such a sort expression.
I created this :
dtmaintable.DefaultView.Sort = "dshotelid, hotelid"
but it Is not giving me desired output.
Sort A Combobox Binded To An Datatable In Wpf?
Apr 3, 2009I have some comboboxes that are binded to some fields in a datatable
is it possible to sort each single combobox without soting the datatable?
Datatable Ascending Order Without Sort Method?
Jun 5, 2011how to create ascending order datatable in asp.net without sorting method
View 3 Replies.NET Excel Column Sort?
Apr 15, 2012I 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].....
Sort A Column In Datagrid
Sep 6, 2009In my form I have several datagrids.
View 2 RepliesSort Listview By Column?
Dec 20, 2009is 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?
.net - Sort Datatable / Dataview / Gridview Of Files Based On File Modified Date
Aug 2, 2010I have a page which lists all the files in a particular folder (all PDFs), using a data-table and gridview. I'm currently sorting this table by the filename (by using a dataview), which isn't that helpful, and I want the gridview of files sorted by the file created or file modified date (as recorded in Windows). If that's not possible, a second option would be to extract the date from the file name string (no problem doing that), and sort the dataview/datatable or gridview based on that.
[Code]...