In Datagridview, Set as DatagridView1.ReadOnly=True,
Dgv1.Rows.Add()
When i tried to add a Row, it is copying previous Row data to new row,and also blank the previous row, why?Like Insert Row, Why...?
my date and time picker cant get data on my SQL yog database it only get data on year 2011 .it cant show me data on year 2012...i hava a range of date.my code is :sSQL = "select * from qry_reciept where product_name LIKE '%" & txt_name.Text & "%' and b_desc = '" & cbx_brand.Text & "' and d_purchased >= '" & datetimepicker_1.Text & "' and d_purchased <= '" & datetimepicker_2.Text & "'"
View 5 Repliesim added a dataset inside my project, and inside the dataset i added a DataAdapter with the steps like below:Use SQLStatement --> select A,B from tb_example --> Fill a datatable.And then i bind one of my combobox datasource's display member = Avalue member = BAnd its work properly!After few weeks, im reopen the project and i try to add another new dataadapter in the previous dataset and a new combobox like steps i did before. When i come to the combobox and try to find the datasource in combobox's properties and i cant find the dataadapter i jz added.
View 7 RepliesWhen i run this app., it shows all the data from my sql db now. How can I only need the previous 20 days data show from the sql db to the following ListView.
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I have 2 applications that collect data every 5 minutes and imports that data into a SQL Server 2005 table. Every so often the location that I'm quering to get the data hasn't updated thier values so the application is trying to insert duplicate data into the database table. Because I have Primary Keys set on 2 of the 3 columns the insert fails which of course causes an error in my application.What I am needing to do is if it runs into a duplicate insert wait 1 minute or so and then retry running the download data Sub.Each sub calls the next sub in the process line.
Downloadxml sub
call Verifyxml Sub
Verifyxml Sub
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i want to create a table that include a current year data and as well as previous data to be compare. here is the example of the table that i want to create: but i want to compare one of the annual data with the previous year. as example i want to compare between the data of current AR of 2007 with the current AR for 2006, Current AR of 2006 with current AR for 2005 and go on~, but i have no idea how to do it.
View 1 RepliesI am a freshman by using vb and I had search several website to learn the method to display the previous saved data in a label but none of it is related to my problem.
View 1 RepliesI have this code I use on my form which has worked fine up until now I need to add another form to my project but the text from form 1 gets overwritten when form 2 gets added How can I append my data without overwriting the previous form.
Dim sfd As New SaveFileDialog
sfd.Filter = "Text files (*.txt)|*.txt|All files (*.*)|*.*"
sfd.ShowDialog()
Dim writer As New System.IO.StreamWriter(sfd.FileName)
writer.Write(RichTextBox1.Text
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I know its .net but i am still using ADODB this is just a sample table, not really what i am doing..I want to take a look at a bunch of records until the customer changes. then i want to have the previous recordset data displayed or passed off to another function how do i set RS2=RS but when i "movenext" RS RS2 still holds the previous record data? [code]
View 2 RepliesI have 2 webforms default.aspx and default1.aspx.In default.aspx I have a button on button click event it redirects to default1.aspx?sno=1
then on default1.aspx I have a button back. On back button click the user is redirected to previous page default.aspx.How can I do this?
How do you restore a dataset to the previous state before updating the database with a data adapter? I have a concurrency update problem that I believe to be caused by this. The update fails during the update and a rollback command is issued using a SQLTransaction object. However, now the rowstates of the rows that did not have errors have been changed to unchanged. So this record is no longer availible to be inserted into the database. When I updated the value that could not be null and then test the second update which runs just as the first does then I get a concurrency error. The update code is below:
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Ok, most of my Visual Basic experience I admit was with VB 3 and VB 5. I'm just starting with VB 2005 Express, and get this error when trying to connect to a new database.
I'm using Windows Vista and have the latest Microsoft JET version, so I have no idea why I'm getting that error.
I am having an issue on the listbox when the new data value equal to previous data then = to "0". However, I want if the new data value( A ) is equal to the previous data( B ) then ( A ) equal to ( B ).
Delegate Sub ListBoxUpdater(ByRef listbox As ListBox, ByRef str As Object)
Private Sub OnQuoteUpdate(ByRef QuoteUpdate As LingLib.structQuoteUpdate)
UpdateListBox(lbBox, QuoteUpdate.tQuote)
End Sub
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My problem is when the new data comes out from the API, if it is equal to the previous data and it will appear 0. But what i want is the new data comes out is 0 and it will equal to previous data. e.g: first data comes out is 12.00, in above case, if the second data comes out is 12.00 but it will shows 0 which means unchanged. But in my case now, i want if the first data come out is 12.00, then if the next data is unchanged (0) and it will appear 12.00 and so on.
I am currently working on a API. I am having an issue on the listbox when the new data value equal to previous data then = to "0". However, I want if the new data value( A ) is equal to the previous data( B ) then ( A ) equal to ( B ).
Private Sub UpdateListBox(ByRef listbox As ListBox, ByRef str As Object)
If (listbox.InvokeRequired) Then
Me.BeginInvoke(New ListBoxUpdater(AddressOf UpdateListBox), listbox, str)
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I have a DataGridView on a form that is being populated from a SQL table dataset by giving criteria from a previous form. I have 6 columns in the dataset, of which the last column should be combo box column containing items "Done" and "Pending". How do I make this bound column to a combo box column and display the value as well as the alternate item too in the combo box?
View 6 RepliesWhat I want to happen is that the button from my system will remove the previous data from database and then insert new data to database from text file. Im done with inserting new data. The thing is that I dont how to control or where to put the Delete Command from my code.
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i have two text boxes
1)username
2)Password
i have a little confusion, when we execute the form by entering the username and password it will execute no problem but when we execute for the i want the same username should be written which has been used in the previous execution?
im adding rows to a datagridview and i need to get the valuof the last row in mydatagridviewi have the following code so far:
dim row as new datagridviewrow
If DataGridView2.RowCount > 1 Then
Dim myrow As DataGridViewRow = DataGridView2.Rows(DataGridView2.RowCount - 1)
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in my page Having 4 Buttons ..(FIRST,PREVIOUS,NEXT,LAST) ..i am confusing to this one..
Actually what i am doing is Iam developing one efrom Designer in this user is adding pages..
so We have given These Buttons (before told)..so user click on First Button page goto Starting page and When click on Next Button Goto Next page ..like this
how to use next & previous button in vb.net to get records from oracle xe code for getting records from database when next is pressed?
View 1 Replieshow to access the previous value of the combobox ( is before changing)
View 3 RepliesI'm trying to get thee previous page visited in ASP.NET using VB.NET using the following code:
Partial Class _Default Inherits Page
Protected Sub Page_Load(sender As Object, e As System.EventArgs) Handles Me.Load
Dim previousPage As String = Page.Request.UrlReferrer.ToString
If (Request.UrlReferrer <> Nothing) Then
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I get this error:
Object reference not set to an instance of an object.
at:
Dim previousPage As String = Page.Request.UrlReferrer.ToString
What I want to do is get the previous page visited so I can get a session variable.
I have a program in VB2008 and I need to execute a thread from differents Subs.Each time I start the thread I want to cancel the previous.Here an example:
Private Sub TextBox_Changed(ByVal sender As System.Object, ByVal e As System.EventArgs) Dim ThreadResults As New Thread(AddressOf ShowResults) ThreadResults.Start() End Sub Private Sub ckBoxAllRecords_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Dim ThreadResults As New Thread(AddressOf ShowResults) ThreadResults.Start() End Sub
I write in a textbox, TextBox_Changed fires, thread spend 4 minutes filling a dataset I check a checkbox, ckBoxAllRecords_CheckedChanged fires, thread spend 10 seconds filling a dataset.I dont want anymore the dataset of TextBox_Changed so I want to cancel its filling.
I have two forms. 1 a login form, 2 The default application.
I would like the user to be verified by form 1 (Login Form) and if verified to open up form 2 (Default Application). I cant get this to work....
My code is as follows
Login form code
Private Sub OpenDefaultApplication
Dim defApp As DefaultApplication
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When adding a new row to a datatable using me.bindingsource.addnew()
is it possible to copy the previous row except for the primary key?
So lets say my columns are "priKey" "Col1" " Col2" the previous lines of Col1 and Col2 are copied but not the prikey so the key can autoincrement
I have an access database, which I connect it to the form I have text boxes which displays info from the fields in the database. I have created a "Next", and "Previous" button, this is my code
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What i have is a gridview that shows the end of months for most months from oct - sep which is companies fiscal year. So what I need to do is fill out the rest of the end of months if they are missing. So right now i am getting teh count of the gridview to see if I have less than 11 rows, then i am grabing that coutn ?? and the final date in the last field and passing to a sub function to figure the next end of month.
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i have one textbox and two buttons.button1 name as prev,button2 name as next.The textbox contain current date.If iam clicking next button textbox will show the next date.if iam clicking prev button textbox will show the previous date.
View 1 RepliesI have the following code which is linked to a previous and next button, however I need to have a loop so that if a next button doesn't exist then it does nothing as it currently ends the program with an error when it gets to the last record and I click next or previous.
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I have created a console application. So this is the problem. I have set a main menu, when I input A, it sends me to menu A, but how can I go back to the main menu? What is the correct code should I use?[code]...
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