.net - Dataset And Hierarchial Data : How To Sort
Jun 7, 2010
I have some data which is hierarchial in nature which is in an ADO.NEt dataset. The first field is the ID, the second is the Name, the third is the Parent ID.
ID NAME Parent ID
1 Air Handling NULL
2 Compressor 1
3 Motor 4
[code]....
What I'm trying to figure our is how to get the dataset in the same order that ths would be viewed in a treeview, which in this case is the levels at the appropriate levels for the nodes and then the children at the appropriate levels sorted by the name. It would be like binding this to a treeview and then simply working your way down the nodes to get the right order.
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Jun 24, 2010
I have some code that creates a dataset from a backend server. I then use the WriteXML method to output it to an XML file. This works fine. But some folks have requested that I sort the output one way or the other (yes, it is easy for them to do so, but they are end users and want the computer to do all their work.) I know I can use .select to extract the data to an array, but I would then have to write that array out to a .XML file. It would be easier (I think) to just sort the data before I output it to XML. I had thought there might be something like dataset.table(0).sortColumn = 2 or something like that, but apparently not.There is only one table and the code will know which columns may be used for sorting.
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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?
[Code]....
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May 14, 2012
I have tried everything I can to get beyond this error which shows below as <<<<< error here. It is trying to fill a dataset from a data adapter. If I change the SELECT statement to just SELECT * FROM xTable I get the correct number of records in each table. But anytime I try with a more complex statement I get the error message shown below which indicates System.Data.Common.DbDataAdapter.Fill(DataSet dataSet. I've completely erased all data and entered a new set of test data so I know there is no problem with relationships. Each table has primary key which is foreign key in other table. IS there something wrong with the Imports section: Imports System
[Code]...
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Aug 24, 2010
i am trying to copy data from a standard Dataset to a Type Dataset (XSD) of same table structure. i want to use Automapper to do that one. So how can i do that using automapper?
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Jun 22, 2010
I have two Datagrids, One grid has all the customers garments on it with style number and contact length. The other grid has the users who have garment issued to them. the style number is in both grids. I need to loop through the users grid and say if the contract number is 1 from the first grid then the contract date on the second grid will be todays date + 365 days (year contract) I have looked at using a stored procedure and also a for each command but I am just getting stuck with it all. [Code]
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Sep 26, 2011
I have an application that receives data input from an automated set of devices. This data stream I have managed to capture & get it into a list box which I can sort based on the Device ID & the time that the response was received.There is a set time window for the devices to transmit their data into the application and during this each device is not limited to the number of responses it can send (ie :- Device 1 can send in 2 responses where Device 3 can send in 40 responses, etc).All of the responses are captured, listed & sorted within the listbox (this bit is working ).I now need to extract the last (ie:- latest) entry in the listbox for each Device ID & this is where I am stuck. I can retrieve the last item in the list but cant seem to extract the last item for each Device ID.[code]
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Feb 1, 2010
I have a dataset (WW1Dataset) with one data table(WW1).(database used in an access database) I'm trying to filter the dataset e.g a user wants to filter by a chosen surname (SurnameTextBox.text) so the datset is filtered to display only those records wherethe surname column in the dataset matches SurnameTextBox.text.
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May 11, 2010
How do I sort the data/records in the DataList using VB.NET? I am working on a .NET project and using a SQL database.
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May 24, 2012
I have data in my combobox1 and was wondering if it would be possible to sort the data in the combobox alphabetically? I have spent ages trying to find the answer by searching the forum but couldnt find anything,
[Code]...
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Apr 24, 2009
How to sort data in ListBox?
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Dec 15, 2011
i would like to sort the information inputted on the textbox and make it appear on the listview of another form by using the combobox. like if i inputted my Surname, First_Name and Middle_Name and i chose the "Full" item for my paytype with the id number "txtid" and the "yearlevel". they are all inputted using the textbox except for the yearlevel and paytype. they all should appear on the listview of another formand i click the save button, my surname, first name and middle name, txtid and yearlevel will appear on the listview of my full_pay form.
if paytype.text="full" then
'my information will go to the full_pay form
elseif paytype.text="installment" then
'my information will go to the ins_pay form
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Apr 23, 2010
I am trying to get the last 20 rows data from the sql db to the ListView from individual Name which i input to the txtbox. However it doesn't work out on the following way.
[Code]...
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Jun 8, 2011
I am currently trying to sort on a GridView after it has been populated with records from a SQL Server Express database. I click on a column to sort it and I get the following error: "DataTable must be set prior to using DataView." The entirety of my code is as follows: <script runat="server" >
[Code]...
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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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Oct 18, 2009
I want to sort the data in a grid view that i populate using linq then the .tolist property, however when i call the .sort method on the grid i get an error stating that the data source needs to inhret from IBindingList to be sorted .
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Apr 21, 2010
I'm using VB 2008 Express I have 2 Comboboxes, and an Access Database with 5 coloums, I have managed to connect to the database and populate the first combobox.But I then wish to use the second combobox to filter the data further. ie 5 coloumns Country, City, Cinemas, address, Tel.no I wish to use the first combo to select Country, then use the second to select city so that if there is more than 1 city in the country coloumn I can select it and then I wish to display the results of the other coloumns in textboxes/labels
my code so far
Imports
System.Data.OleDb
Public
[code]....
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Oct 16, 2011
I am new to vb.net. what I tried was print data in cristal report according to the ascending order of index number
[code]...
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Jul 7, 2011
I have AutoFilter in place in my sheet. I want to sort data using the AutoFilter itself and not by normal sort. I want the client to see the down arrow on the autofilter button, which tells that rows are sorted on this key.
I have 'sheet' as an object :
sheet.Range("A2").AutoFilter then Or something else ??(Ensure the syntax for VB.Net and not VB Script)
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Jan 29, 2010
There is a Some Problem with Sort Data in Textbox with btncmd_click in VS2008
[Code]...
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Jun 22, 2010
how do you sort the data by columns in a list view, for example, clicking the title of the column to sort by ascending order.
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Dec 3, 2009
i have a 2d array that i want to sort the data from into a file so i can retreve it and put it back into the array. i need to know the better file format to use.
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Dec 15, 2010
How can I improve this bit below to make the items in the TreeView to sort faster or something totally different to sort them easier?
[Code]...
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Jun 12, 2011
I have a text document that contains a bunch of data sets. However before each data set there is a number surrounded by brackets. I need to go instance by instance of brackets and pull the number between the brackets and the lines after the brackets until the next bracket. Here is an example of the text file that contains the data. I know how to read from a text document, do substring, do contain function, etc... I just am extremely stumped on how to do this. Here is an example of a couple entries of the text document...
[4188]
LongName=
ShortName=
LauncherDirKey=
[Code]....
Notice how different sections have a different amount of lines therefore a reading a fixed number of lines is not an option.
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Jan 7, 2010
I want display database value in datagridview 2 coloum ..how to may i bind the dataexmp:- Suppose in Database 100Dr,200Cr i want in datagrdview 1st coloum 100Dr & Second coloum 200Cr............
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Apr 19, 2010
I'm programming in VB, using Visual Studio 2008.
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Feb 21, 2011
I 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
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Mar 29, 2011
I am adding data to two listboxes: listbox1 and listbox2. Now i want so sort Listbox 1, witch i can do with listbox1.sorted = true. But then listbox 2 has to be sorted the same way. (The data has to be matched) How can i do this?
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Jul 27, 2011
I have a situation where I serialized data from a dataset to an xml file as a method of backup.I am trying to get the data deserialized back to the dataset.But for some reason, I cannot get the data to persist back to the DB.I don't receive any error messages either.The first chunk of code is the serialization code and the second chunk is the deserialization code.I can show that the deserialization back to the dataset is complete because this code in the 2nd block DataGridView2.DataSource = Movie_dbDataSet.movie_tb - displays the data in correct form all it is all there in the datagridview2.I call the update method but it does not get persisted back to the db.[code]
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Nov 9, 2009
when i try to insert data from database into dataset using data adapter, it takes long time, i want to use hourglass but i'm confused how or when i type the code so user will know that application still work.
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