Reading XML - Load The XML In A Datagrid
Sep 2, 2009
I have an XML file with the following Structure:
<?xml version="1.0" encoding="ISO-8859-1"?>
<Library>
<DVD>
[CODE]................
When I try to load the XML in a Datagrid,I am able to load the data under the "description" element properly, however when it comes to loading the data under the "production" element, only data for the last movie is loaded and is repeated for all 3 movies.
Below is the code i am using:
'-------Initiate the OpenFileDialog to load the Load XML file
Dim x As New OpenFileDialog
If x.ShowDialog = Windows.Forms.DialogResult.OK Then
[CODE]...........................
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Mar 5, 2009
I want to read in a file and as I do put the contents into a datagrid, can this be done ?I have the following code so far
myPath = "C:SYNC_DATA�0 - LGW�5 - Archived�0 - IST Logs2008"
myFile = "istlog" & d.Year.ToString & d.Month.ToString.PadLeft(2, "0"c) & d.Day.ToString.PadLeft(2, "0"c) & ".txt"
Dim sFile As System.IO.StreamReader = New System.IO.StreamReader(myPath & myFile)
[code]....
I get an error on "adapter.Fill(dt)" which is propably incorrect.How can I get the ontents to be displayed in a datagrid on the screen called "DataGridView1"
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May 19, 2011
I have a datagrid which I have manually added columns to and adding rows at runtime (code I am using below if that helps in anyway). When that row is sellected I wish to get the data from different columns.
I'm adding to the grid:
Dim dgvRow As New DataGridViewRow
Dim dgvCell As DataGridViewCell
dgvCell = New DataGridViewTextBoxCell()
[Code]......
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Aug 29, 2011
I am working in windows forms with Vb.NET 2008. I am trying to read text in from an external program. So far I have been able to read text in from a standard text box or button, however I am trying to read data in from an external data grid.
When I try to use the following I get no information about the grid
ChildHandle = FindWindowEx(ParentHandle, IntPtr.Zero, "classnameofexternaldatagrid", Nothing)
Dim Hndl As IntPtr = Marshal.AllocHGlobal(2000)
NumText = SendMessage(ChildHandle, WM_GETTEXT, 2000, Hndl)
Text = Marshal.PtrToStringUni(Hndl)
Usually if it is a standard text box I will get the text data with no problem, but it is a standard data grid and there are no further sub handles to try and read from. If WM_GETTEXT wont read information from an external data grid then how would I read in the data?
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Mar 11, 2010
Here is the code in question:
filePath = "..authors.xml"
dsAuthors.ReadXml(filePath)
With DataGrid1
.DataSource = dsAuthors
.DataMember = "authors"
End With
However, it will not allow me to reference .DataMember, it keeps popping up with the error text "'DataMember' is not a member of 'System.Windows.Forms.DataGrid'". What can I do to resolve this error? Or how else can I read into the DataGrid?
Note: I have the most recent Framework installed with Service Pack 1
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Mar 11, 2010
I need my form to automatically select the first entry in the datagrid view when it is loaded. I am having trouble finding the correct way to code it. Private Sub CustomersForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load[code]...
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Feb 20, 2012
read data from text file , 3 data types saved on the file, "location", "time","sighting" eed to extract all data from file and save on a 2d array and display on a datagrid view.ata sorted by ascending order of time.
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Feb 20, 2010
I want to open a text file from a url (example: http://domain.com/mytext.txt)
and then load it into array. (Separated by new line)
I have another question. I'm thinking to develop a simple chat application. I'm thinking to write/read all chat messages in xml. is the idea logical for chat application development?
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Jun 4, 2011
Well i just tried to turn Rows cells that contain the word Yes into green on form load when i put that code into a button it worked but on a form load i didn't work !
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim j As Integer = 0
[Code]......
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Feb 2, 2012
How to load data from database table and display in datagrid in VB.NET? I know how it is in C#. I am not familiar with vb.net.
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Aug 7, 2009
What im trying to do is, when I click on any row on my datagrid(dgvCompositions), all the cells(16 columns excluding ID column) in that row must be loaded into the 16 textboxes I have (txtB1, txtB2, txtB3....)
So when I click the row, and the entire row is highlighted the text from the cells get loaded into the textboxes.
I know how to pull data or text from specific cells clicked
Private Sub DataGridView1_CellClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellClick
TextBox1.Text = DataGridView1.Item(0, e.RowIndex).Value
End Sub
But the problem I have is that how do I pull all 16 simultaneously and put them into 16 individual text boxes?
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Jun 18, 2009
I wanna load XML file with XDocument.Load method and lock it. How to do it?
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Jun 3, 2010
I have a datagrid and set of collection of columns for the datagrid. I have added cloumnname and headertext using column collections in design time. I have made false of autogenerated column. I was unable to load the data in datagrid from datatable. If i remove the collection and add bind data in datagrid means working fine but not for the column collections.VB.net windows application.
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Jun 17, 2012
All the code i found for multi-threading is complex and not clear.What i want to do is creating a thread for reading and analyzing a big text file on Form_Load event, so that the form UI building continue without waiting for reading and analyzing the file finish.
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Aug 1, 2011
lock from reading/writing/copying a loaded XML file with XDocument.Load [VB 2010]?
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Oct 16, 2011
I have a datagridview with transaction bindingsource I want the datagrid to show the sorted rows only not all the records when i enter a value into a textbox and click button sort.
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Apr 15, 2008
What I am trying to do basically is open an access query in a datagrid view and then be able to make changes to the datagrid and then save it back to the database.When I try to save:
Me.BindingSource.EndEdit()
Me.TableAdapter.Update(DataSet)
It says that update is not a member of the tableadapter... Why is that?
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Dec 13, 2009
now i use acces as datasource to view the agenda in a datagrid and a combo box to select a year or month so i can find the selected month or year in the datagrid .how do i program it so that it searches the selected year or month in a datagrid
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Mar 20, 2012
I have a datagrid who's ItemsSource is a strongly typed IEnumerable object In this datagrid, I have a checkbox column, a price column, a part name column, and a 'total selling for' column. On checking the checkbox I need to update the total selling for column with the value in the price column. This part I have working, however, how can I get the checkbox to remain checked when this happens?
Private Sub UpdateSellFor(sender As System.Object, e As System.Windows.RoutedEventArgs)
Dim _CB As CheckBox = DirectCast(sender, CheckBox)
Dim _ID As Integer = _CB.Tag
Dim _PP = DirectCast(DG_PartsToSelect.CurrentItem, PartTyping).PartPrice
[code]....
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Jan 22, 2009
I placed a datagrid in my form which l retrive data from my sql. i am using oledb connection. if i run the form i can retrive the data but i am not getting the data in the grid at first ,there is a "+" sign, i have to clik that then it shows the table name and after clicking the table name i can view the data displays in the grid..
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May 9, 2009
I have a datagrid which I am using LINQ to fill, I then add some custom columns and fill them in programmatically - if the users clicks on the column header to re-sort, all the data in the added columns disappears. I am obviously missing something very basic here but can't seem to see the forest for the trees. I also have a couple of other questions about how I am doing things:
[Code]...
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Oct 16, 2011
I am trying to create an xml editor that read and write xml. my code reads the xml with no problem and allows me to create new rows but when I try to "write" it over I get the following error: "Token StartElement in state Epilog would result in an invalid XML document"
here is my xml:
<?xml version="1.0" standalone="yes"?>
<MacroList identifier="test">
[code].....
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Aug 24, 2011
I decided to rewrite my project. Hit another snag. How do I write the contents from a datagrid to a file and back into the datagrid again later? (Actually, I've done the writing ok - but for the life of me can't get the data back into a blank datagrid.
Here's what I done so far:
Imports System
Imports System.IO
Imports System.Text
[Code]....
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Jul 29, 2010
how to do cursor moving from one grid it effect to another grid.example Grid A and Grid B have the same number of rows. when I click current row on data grid A, the selected row on data Grid B also follow data grid A..
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Mar 2, 2011
I am printing a files that are shown in datagrid.. But I want to choose a file that I don't want to print by checking the checkbox that I added in datagrid..
I have here the code for printing.. Anyone can edit my code that will print those file that is not checked.
Code:
Try
openMySQL()
Dim sql = "DROP TABLE IF EXISTS dummydisconnectionorder"
[Code].....
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Jul 22, 2009
I have on my form two datagridviews that correspond to the same table. They are both databound. They have been created automatically through dragging them from the datasources windows.One is datagridview and the other datagridview1. When ever I navigate through a datagrid the corresponding row on the other grid changes as well. I do not want this. Also I want to be able to fill and use each datagrid indepentent from each other. To fill a datagridview on load I use this code
Me.AllServicesTableAdapter.workstation(Me.Database2DataSet.AllServices)This code does not let me choose which datagrid to fill.
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Mar 20, 2011
I want a rich text box to display public variables like (pizza toppings links etc that have been selected in other forms) these variables have declare in a module. But I want the rich text box to display these variables as soon as the screen loads ( a on form load event) if you know what I mean.
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Jan 2, 2010
I am working on a project in VB 2008 and need it to do this:Read first line from text file (using Openfile)Enter line into textbox on formDo some other codeThen Read second linefrom text fileEnter line into same text boxand loop until we have gone through text fileI am not sure how to read line by line from text file then enter it in textbox. I can open the Openfile and get the filename and everything, but I just am not sure how to read from it or enter that line into the textbox.Here is what I have, its not much but its a start:
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim FileReader As StreamReader
[code]....
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May 23, 2011
I have a search form on that will be pulling search template queries from a table in the underlying (an Access db on a share). The search form has a calendar control for filtering by date range, a listbox containing the names of the search templates, a second listbox which lists the fields in the selected template, and then some controls which show/hide themselves depending on which field is selected so that the user can pick a field and enter it's unique criteria in the appropriate control for filtering. Below these controls is a DataGrid, which will obviously display the results.
The problem is how to dynamically "transform" this DataGrid to display the selected search template. These templates do not represent tables in the underlying; rather they represent preconstructed SQL queries (stored in a table) which are essentially SELECT queries with joins and no WHERE clause (so they are the results of multiple tables joined together by their keys).
To be honest, I'm having trouble even generating the LINQ queries to represent these template dynamically, but that's not as important, since I can manually translate the SQL queries into LINQ. This is definitely not the preferred method, as the whole point of putting these templates in a table, rather than code, was to allow for future additions without rebuilding/redistributing the application interface.
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Dec 28, 2010
what are the differences between the WPF Datagrid included in the .NET Framework 4.0 versus the Datagrid included in the out-of-band WPF Toolkit? I understand that the toolkit version was released first, and targets the .NET Framework 3.5 SP1.
I needed a WPF datagrid quick and have utilized the toolkit version in my applications. I'm considering moving the application to .NET 4.0 and am wondering what the pros/cons will be in changing out my existing datagrids for the new ones.
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