I have a tab control and what I want to do is when I click on the tab, data is loaded into the DGV. This does not happen until I click on the tab page several times and then the data is shown. What I did was I took the dataset fill from the Form_load and put it in the Tabpage2_GotFocus procedure thus:
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an application i developed using vb 2008 express, to fill a web form with data from an access database, one after another when a button is clicked hasn't given me what i expected. the loop was suposed to stop after filling web form with the first data on clicking a button and continue to fill the webform with the next(2nd) data from the database on clicking the button again. Below is the code i wrote
Private
Sub STARTButton_Click(ByVal
sender As System.Object,
ByVal e
[Code]....
I can successfully save my application data to an .xml structured file like:
<?xml version="1.0"?>
<appSaved>
<saved Firstname="Graham" Lastname="McCann" Email="graham23s@hotmail.com" Username="graham23s" />
</appSaved>
I was trying to do the reverse and load the data back into the textbox fields so far i have:
'Load the saved information back into the textboxes
' Create a new instance of XmlDocument
Dim myXmlDocument As Xml.XmlDocument = New Xml.XmlDocument()
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I'm trying to build an app using WPF and I want to display a load of data from some tab delimited log files in a data grid style. I know there is no DGV control for WPF so after watching a few "forms over data" videos on the MSDN site I figured I should be able to do it using a ListView with DataGrid tags within it.So after messing about with the XAML code for a bit I managed to create my column headers in my ListView etc and I can load data into it fine if there's just one column... but obviously I need more than one column.
So I thought fine I just create my extra columns and then use ListViewItem and ListViewSubItem classes to create the content for the listview and then add them to it. However, it seems that ListViewSubItem does not even exist in WPF and the ListViewItem doesnt seem to have any way of editing separate column data. For example, if I set ListViewItem.Content = "some text" and then add that to the ListView it just sets "Some text" in all 5 of the columns I have.All of the examples on MSDN are using data bound listviews and I dont want mine to be data bound I just want to manually load it with items.
I have a window application develpoed in vs 2008, framework 3.5, in which i have put a button.. Now where i click that button the other text boxes are filled up with the data from database thru web service.. what i want is while all text boxes are being filled i want to show an animated loading gif image till data loading is completed in all the text boxes.. i have tried to use image picture box but while data is loading gif image is displyes but in static mode.. cant see animation... i think this is because data loading and animation both are done thru one UI thread..
View 8 RepliesAs it stands, when I click a button to load the data the application lags and looks as though it has locked up although it has not. There are a lot (10,000) of records to load in some cases.
I thought I could just change my status strip text to dispay "Loading database" while it's loading.
So, I raise an event (dbloading) in the "load db" button.click event before calling the procedure to load the data. When that event is raised, I change the status strip text.... but it does not work.
Here's my
Private Sub btnLoad_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLoad.Click
jnATM = Me.atmJobNum
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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 want to know that when im adding my data in form after loading one person data then 2nd person data the 2nd person data cannot come to next line it is adding on the same line.plz tell me wat can i do?
View 6 RepliesI am trying to load a xml file into a data set by loading the information into a data row. when i try to complete the task it throws a nullReferenceException. the row has data in it and i used the code earlier and it work.
[URL]
Imports System.IO
Imports System.Xml
Public Class frmMain
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which way do you think is best? Using connection As New OleDb.OleDbConnection(My.Settings.CustomerConnectionString & My.Settings.CustomerDatabasePath)
Using command As New OleDb.OleDbCommand("SELECT [customer] FROM [tblCustomers] ORDER BY [customer] ASC", connection)
connection.Open()
Using reader As OleDb.OleDbDataReader = command.ExecuteReader()
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Its my first time here. And I'm a new to programming and to VB.NET too so please don't mind if I say or ask stupid things :POkay here's my question. Let's say I have a table which contains student details. (Student Code, Name, DOB, Sex, Address, Contact No) and I have a grid which shows ONLY the student code and the name.
Now What I wanna do is when you double click on a cell, ALL the data related to that particular row should be loaded into a form with textboxes.
I'm trying to load data into a DGV row at a time from a dataset and keep getting the following error on the highlighted line.
Private Sub LoadClientGrid()
Try
grdClientList.Rows.Clear()
For Each row As DataRow In rsClientGrid.Tables("tblClients").Rows
Dim grdRow As New DataGridViewRow
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I have here a huge csv file with millions of rows entries. I want to load this data in a vb.net application, what datatype should i use, datatable, array or sth. else? It needs to be as fast as possible. how i can optimize the loading of the data? I once loaded this data in a datatable and it took days.. then i exportet it as xml data and loaded this xml file with the data. this was about thousand times faster.
View 5 RepliesI 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.
Try something along these lines:
TextBox1.Text=(dt1.rows(DataGrid1.CurrentRowIndex).item(0).tostring)
where dt1 is the datatable you're using as the data source and you want the data from the first column of the grid to be shown in the text box.
dp.SyntaxHighlighter.ClipboardSwf = '/dp.SyntaxHighlighter/Scripts/clipboard.swf'
dp.SyntaxHighlighter.HighlightAll('381571b4631840c6b8a8abfe5b54ed97')
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]....
I have a small VB program written using VB Express 2008Part of it uses an Access database this all works fine using the custom classes.I want to extend it to use some parameterised settings which I have stored in a table in the same Access database .I want to load these parameters from the table at program startup, then use them later in the code as needed.In SQL I want to execute :-select parameter, parameter_value from system_ parametersthen store this in an array which I want to index on the parameter column/elementAny suggestions on how I can load this data into the array ?
View 1 RepliesRichTextBox1.LoadFile("c:pic.jpg", RichTextBoxStreamType.PlainText)It seems like it loads the data correctly, but the data is all wrong. I know this because when I use a packer sniffer, the data of the file that I sent is different when I sent the file manually.ou can also try RichTextBox1.SaveFile("c:pic.jpg", RichTextBoxStreamType.PlainText) after the picture of the data has been loaded and the picture becomes corrupted (won't show any picture anymore)
View 7 RepliesI have created a project with a search form. add new record form and a also have an edit record form.Under the add new record form I have added an attachment button an a opendialog where I can select multiple files, so far this is working great, then I add the name of each file that I select and added to a listbox, so far so good,for example:
View 4 RepliesI have an webbrowser, and I want to save the start page into an XML file... I have a textbox where I can input the start page url and an "apply" button, I got the apply button to work, and the URL saves into my_start_url.xml.
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I am trying to show xml data in an Ultragrid. I have tried using Ultragrid.loadfromxml and using the location of the file and i have also used a file input stream and throw that into the load xml method
View 3 RepliesOur application is using VBSQL.OCX on Sql server 2000 to create temporary tables and load pipe delimited data from a text file with predefined format into the tables. It is failing intermittently doing this. 99% times it works perfectly. But on occasions it does fail with error. Once the process is rerun with the same input file it runs successfully.Basically the architecture is of Store/Head Office where there are around 200 remote stores sending set of data files to the Head Office. At HO our application sequentially processes each store which has all the set of files received, creates a corresponding table, loads the data from the file into the table and moves onto the next store.If it is for some reason not able to load the file for a store, it gives a failure message and continues with next store.Error which the OCX throws is "Attempt to convert data stopped by syntax error in source field"
View 1 RepliesI'm writing a forms application. I'm adding a piece that allows you to double click on a row of a datagridview control to open a new form with more details. These additional details are pulled from a database, which takes a bit of time to finish.If I run the DB query from the form's load event, the form doesn't show up until everything in the load event has completed, which can take several seconds.I want the form to show up instantly when you double click, and all of the fields to be populated once the data is ready.Is there an event I should be using other than Load?
View 6 RepliesWhen loading file data to the listbox that I recognize some characters and replace them for me "?"I put the code I use to load the data:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If OpenFile.ShowDialog() = System.Windows.Forms.DialogResult.OK Then
Using fs As FileStream = New FileStream(OpenFile.FileName, FileMode.Open, FileAccess.Read, FileShare.Read)[code]....
I have a grid loaded with data. What I wanna do is when you double click on the row header, the data in that row should load into a form with textboxes. I've chosen the RowHeaderMouseDoubleClick as the evnt for this but dunno how to start.
View 2 RepliesProblem:Combo Box in CHILD MDI Form is not reflecting the "data" added from the table1. I have an MDI Parent form, and MDI Child Form.2. The Child form contains a Combo Box, and i want to load the data to this combo box dynamically "selecting from" a table. I am able to select from the table, and using the following code to add rows to the combo box
frmForeignKey.cmbSource.Items.Add(targetSSID) frmForeignKey.cmbTarget.Items.Add(targetSSID)
3. The Child form is called with the following code from MDI Parent form
Dim fkChild As New frmForeignKey fkChild.MdiParent = Me fkChild.Show()
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I'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 saved an image in database using following code.
ofd.ShowDialog()
vrPicHolder = IO.File.ReadAllBytes(ofd.FileName)
Dim drPic As DataRow
drPic = DsPic.tblPicTest.NewRow
drPic.Item("Picture") = vrPicHolder
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i have access database connected to application.. i have a table in database called "clanovi" (members) and first column items loaded to combobox their name and surname..now..when i select one of them from combo box i need all their other info loaded into several text boxes..adress,email etc..all of that info is in the same table ..i need some example code too .
View 6 RepliesI have a table in access with 3 columns 1st is called userid and is a primary key and auto number 2nd is first name 3rd is last name. I have a button on my form and when I click it I want it to load the last userid listed in the access table and put in a textbox, say txtuserid. So if the records in the table looked something like
0001 james cold
0002 nick case
0003 john doe
When I click the button I want the last user id in the records to come into the textbox, so in the example that would be 0003, my connection is already set up.
provider4 = "PROVIDER=Microsoft.Jet.OLEDB.4.0;" 'database provider established
dbcustomer = "data Source = ....Booking.mdb"
customerconnection.ConnectionString = provider4 & dbcustomer 'connect the database and the database provider
Bookingconnection.Open()
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