I've written the following sub to load a comma delimited file into my datagrid view but it's hanging up when it attempts to load the first two values into the cells of the datagridview. I think it's having trouble adding the cells to the datagrid. I have tried writting them directly using the .text of the specific row and cell but when I incremented to the next row it hung up because the row didn't exist (I think).
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I generate my xml into "variable string str" by using "dataset.GetXml" and then I write the "xml which is contained in variable str" into "file.xml" by using sFile.WriteLine(str) while 'sFile' is a stream reader"My reason for using 'writeline' instead of 'dataset.WriteXml' because I need to encrypt the 'xml stored in 'str' before I store it into file.xml.I got everything fine for the encrypted result, and so does the decrypted result as well.Here's the decrypted result of my file.xml below (I have checked it the xml value which in str before encryption and which in decrypted file.xml. They are all match well)Here is my plain xml value before it got encrypted or decrypted which I stored it in variable str by using GetXml. I don't know for sure but my xml value doesn't contain declaration "<?xml version="1.0" encoding="utf-8" standalone="yes" ?>" like common xml used to have.All the xml file which I got from GetXml is just like below (No declaration like <?xml version="1.0" encoding="utf-8" bla ?>) Book 1 2010-09-22T14:43:00.0000000+07:00
And since I think it may not cause any problem then I keep coding and decrypt it which is going well and the decrypted result is perfectly same ofcourse.My problem is, when I try to make my xml value show in Data GridView by using the code below, and run the debug, it prompt an error said "could not find the file c:laFile.xml ".
ds = New DataSet
path = System.IO.Path.GetFullPath(strFileToDecrypt)
ds.ReadXml(path)
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I am facing a "weird" problem with the DataGridView. In fact, I have a function, that loads each table of an xml file into a datagridview (27 tables all with same structure except one called Listes). In the datagridview I have a combobox column to select "type" (it's the 3rd Column, so it's index is 2 normally). The problem is that when I call the function loaddata for the first time, all work perfectly ! If I call it for a second time, to reload the data, I get an error of cast! I verified and it seems that first time I call the function the column that contains the combobox is column(2), but when I run it again automatically the indexes of the columns are changing and am getting the error, because the column that contains the combobox is becoming column (3) and that explains the cast error because the column'(2) is not anymore the combobox so the cast will fail ! What I can't understand is why it's reordering that way my columns automatically ?
Here is the code:
vb.net
Sub LoadData(Path As String )
Dim oData As DataSet
oData = New DataSet
oData.ReadXml(Path)
Dim i As Integer
Dim MaGrille As DataGridView
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i have been hunting the web for a solution or example to my problem which is loading and xml file into DataGridView with combobox for the cells and then loading the comboxes with data that the user can choose from to change the cell value to and output an updated xml file. Below is my code with the column creation commented out for now, with this code the 7 columns are added with comboboxes to the datagrid but when I read in the xml file its adds the data to another 7 columns on the end and not into the columns I have created first.
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1) How can I load data from Text file to DatagridView. I want it because I'm making a listener. And when I load a data from text file, i want to edit rows. And this calling the second question.
2) How can I save data, Datagrid to Text file.
I found a code
Dim obj_oledb_da As System.Data.Odbc.OdbcDataAdapter
Public Function ConnectCSV1(ByVal filetable As String) As DataSet
Dim dataSet As New DataSet
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I can load data with this code but I can't save.
My Text File must be like this:
#IP
127.0.0.1 localhost
So there's lots of examples of how to do this if your text file happens to be in XML format. However, my text file is not in XML format and as it contains over 172,000 rows I'm not that keen on adapting it (it's a dictionary)! The text file has been included in the project as a resource.
So far I've got a DataGridView (could use a DataRepeater if easier?), a BindingSource and a DataSet.
The DataSet has a DataTable already defined in the designer with one column.I've managed to load the text file into a String and then create a StringReader based on that String variable, however I cannot find anyway of loading those strings into the DataTable.
Dim listWords As String = My.Resources.WordList Dim strReader As New System.IO.StringReader(listWords)
'What now???There are some examples of using OleDb functionality but all assume you're loading from a text file residing somewhere in the filesystem, not a project resource.(I'm also assuming that on building the application the resources get embedded (somewhere) rather than being accessed from [AppDir]/Resources/[filename] ??)
I have a CSV file which I append using the LoadActivityLog sub and then I pass this CSV to a datatable and populate a DataGridView in my form using the WriteAcitivityLog sub. Everythign works fine. However the datatable passes the information into the datagridview in such a way that it populates the column header rows with data as well. I want to put custom column header fields into the datagridview. However i cannot figure out how to do this.
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I have a matrix:
Module Procedimientos
Public Datos(200, 4) As String
Public Sub Inicio()[code]....
It is a Class made with the Add Windows Forms Menu.I have another Form where I added from the ToolBox the DataGridView Item.
Everything till now works like a charm, the problem comes when I try to load the matrix (previously posted) into the DataGrid. I search for the matrix via DataSource Button (from DataGrid's Properties) but I can't find it, it'll only show up the other forms. I don't know what I'm doing wrong.
Loading into a Datagridview, Nothing seems to work no Error even with test data Added.
Here is some code
Dim SqlConnectionString, SqlCommmandText As String
Dim SqlAdapter As SqlDataAdapter
Dim Table As DataTable
[code]....
It is possible to load the DataGridView (VB 2010) with an Sql Query file that is saved in My Documents Folder?
I searhed everywhere but have not found a good reference that i can use. I have a database on SQL Server. Created an SQL Query that join two tables and a function from SQL (among other things) that extract a report. This Query is saved within My Documents files in the C: drive. I want to show this report on the DataGridView. Don't know how to do it.
I am binding the data to datagridview using dataset ( datagridview.datasource=ds.table(0) ).but i want to show the loading status of the datagridview in progressbar.
View 13 RepliesI'm populating a DataGridView from a file with the following
Dim fnum As Short = FreeFile()
Dim inputLine As String
Dim i As Short = 0
Dim strAuditDate As String
Dim strAuditTime As String
Dim msg As String
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When I do this, the MessageBox.Show shows the contents of a row, which is tab delimited. How do I get the data that I read to display in columns of the Gridview?
I have a datagridview (Unbound), which calculate several numbers, and I use this following code to save 5 of the columns to a XML file. My problem is that I would like to load this file back to my datagridview, and onlu to the same columns, without changing the rest of the datagridview.
Code used to create XML file:
Dim gridtable As DataTable = New DataTable("WaypointLeg")
Dim gridtable_collumn1 As DataColumn = New DataColumn("column1")
Dim gridtable_collumn11 As DataColumn = New DataColumn("column11")
Dim gridtable_collumn18 As DataColumn = New DataColumn("column18")
Dim gridtable_collumn19 As DataColumn = New DataColumn("column19")
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How I can load my XML file, and only update certain columns in my datagridview and not add 5 more columns to my datagridview? Is there a way to load the XML data to my datagridview without binding the datagridview to the XML file?
I mean without the use of the:
DataGridView1.DataSource = ds.Tables(0)
I found this code on the net that allows you to put the contents of an array into a datagridview:[code]This works fine as is, but can someone tell me how I can add items to the array without them all being contained in a single statement?How would I modify or seperate this out to use it inside of a loop?[code]
View 7 Replieswhat I am trying to do is get a program to load data from a text file with multiple lines in the form "Name, Type, Stocklvl, Price, Location, Reorderlvl" then display it all in a data grid. From where it can be viewed and edited as well as saved back into the original file stock.txt as well as generating a separate file reorder.txt which includes data on what needs to be reordered and the date which updates on program exit. I have chosen to use datagridview something I'm unfamiliar with as I figure It'd probably be the most functional to meet my needs of displaying a lot of data clearly as much as 200 items.
View 22 Replieshow to use datagridview. im gonna show some of my code for the connection and datagridview display
Public Class Form1
Dim con As New OleDb.OleDbConnection
Dim dbProvider As String
Dim dbSource As String
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i want to display in a textfield the first name based on where is selected after i clicked Button1, how do i do this?
I have Vb 2008 and Ms access 2007, I tried this code to show the data in Datagridview but didn't do any thing and didn't show any error. [Code]
View 14 RepliesI want to be able to able to read the dimensions of a TIF image without loading the entire file.
PS Using Visual Basic 2008 on Vista64.
I don't know whether it is simple or not because i am new to programming. my requirement is : In my vb.net winform application, the filenames of the files present in "D:Project" willbe displayed in DataGridView1 control. Now I want to load these files one after another into memory stream buffer and add the headers("ID","Name","Class") to the content in the file. Then I want to save these files in "C:" with "_de" as suufix to the filename i.e.,sample_de.csv.
View 1 RepliesOk here we go again, im a complete beginner to coding and have started with visual studio 2008 using the .net/vb libraries, as my first project i went with an emulation application, and it went great:So now i think its time to move onto a little more advanced tech's, so i added in a combo box and i want to change how my code works, and this is where my troubles are.To start of with the combo box, i have it added to my winform and have 3 items on it 'Action' 'RPG' and 'Sim' and i have made 3 .txt files in the projects root folder with the same names. What i want to have happen is when the user selects for instance 'RPG' from the combo box the items displayed in the listbox change to the contents of the rpg.txt file. After searching around for a few hours and no luck i tried this
Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
If (ComboBox1.SelectedItem = "RPG") Then
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I have a vb.net form to add, modify or delete the product list..i have a datagridview in which i m loading data from sql server datatable...now i have a text box which accepts code for the product..i want that when i press a key, all data starting with that key should be highlighted in datagridview.....
eg
i have product codes
A001
A002
A003
C001
D001,, etc..
Now i press A in text box...in datagridview all data with A should be highlighted
I have a project that I am doing which is as follows and need your help to complete the last section I can start word no problem with process.start("winword.exe")the problem is the attachment I attached the documents using project resources and then add exisiting text files and attach it to the project but when I debug I get the following error the code used is as follows
Process.Start(My.Resources.Results
I am using the following code and I get an error that the file isn't residing where in REALITY IT IS! I know its my syntax.BTW, this directory structure I also created in the Solution Manager.
Me.rtbReader.LoadFile(Application.StartupPath & "BooksKJVNT Matthew.rtf")
When I get ready to load the .txt into the listbox, it says that there is an error, yet I have no compiler errors. Here is my assignment I am having trouble with:
Public Class Form1
'Define the Members Structure
Structure Members
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I am trying to create a program which reads data from a text file and insert the data in to a SQL 2005 table, but unfortunately it only reads the first line and insert correctly but not the rest of the lines on the text file
The text file looks like this
Test.txt
John, Doe, 40, 12/04/1968
Micke, Gulm, 39, 07/08/1970
[Code].....
sort out this issue as I need read the entire text file which in reality will be about 5000-10000 lines and insert them in to the SQL DB line by line.
Is it possible to load an *.ico file onto a PictureBox ? I know I can use : PictureBox1.Image = System.Drawing.Image.FromFile("C:MyImage.jpg") but I'd like to use an icon . I have tried some other methods that read "Icon" , but I failed . Up to now the only thing I have thought is converting the file format form *.ico to *.jpg , but I think that's ridiculous ...
View 11 RepliesI'm building an app to manipulate information in a CSV (tab-delimited) file. The 1st part is to load the file and I'm having a real tough time of it. I'm using MS Visual Basic 2010 Express. Here's the code I have with a few comments:
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I have an xml file called "QuotesxmlDoc", in my program I have written code for a search screen that searches the xml file for titles or keywords in quotes saved and the information is then shown in a datagridview, see the code below:
Private Sub btnSearchQoutes_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSearchQoutes.Click
Dim xmlnav As XPathNavigator
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On the main screen of the program, I want to show all the saved quotes from the xml file in a datagridview, I just need to show the date, category, author, title of the quotes, I also need the datagridview to refresh everytime a new quote is saved.
one I'm trying to load a INI file to a combobox then into a Listview but I'm returning with an empty variable. I have a INI file containing the following format:
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I have an application that reads data values (numeric) from a data file. Due to a change in data requirements, I need to put these into a paramArray so I can calculate the MEDIAN of the series of numbers. I have seen some of the MSDN examples and they are all good except they load the paramArray with ArrayName(#, #, #, #, #). That's OK for a simple example, but how do I load a paramArray while reading numeric data from an ASCII input file? The number (Ubound) of samples is usually 153 but can vary considerably.
I think I can work out the rest of the MEDIAN calculation from the MSDN example code.