The label never get updated when it is assigned a new value from DB. I try with label.refresh method and also update method but the label still never get updated.
View 2 RepliesI'm looking for a way to assign a number to either a picture box or label. Not sure what one i will be using. Would it be something like this?
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how do i assigned random number to either a label or a text box?
View 1 RepliesI'm trying to write my first application which connects to an Access db. It took me hours to understand this, but I figured out that, if during the creation of the connection I chose to copy the mdb file in my project directory (VB asks this), I get that the database is not updated. Everything works, except the save button which saves new rows in the db. If I answer no, and the original mdb file is used, the database is correctly updated as expected. Is there a reason for this? Why is this happening? Shouldn't the database bu updated anyway?
View 2 Repliesi implemented a RSS for big company on loacal area network attached with sql database to feed internal news.everything working fine.but i faced a small problem when the database changed the RSS doesn't take the update unless the user close the RSS and start it again.how can autorefresh the rss without closing it when the database changed.
View 1 RepliesUsing this code i cannot insert data in the database . it gives no error but no row is created in the data base
Imports System.Data.SqlClient Publi ClassForm1 SqlConnection("Data Source=.SQLEXPRESS;AttachDbFilename=
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Ive never done a database before and i found this in one of my books... I think it should work. The part of the program that is in bold is the issue i get an error that says "Update unable to find TableMapping['Table'] or DataTable 'Table'." From the da.Update(ds).. ive been trying to figure this out for hours!
Public Class retailForm
Dim tempPrice As Double
Dim dbProvider As String
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I have a datagridview bound to bindingsource. Whenever I delete a row, it is not updated to the underlying database table. I have to click elsewhere in the form to cause the dgv_rowValidated to fire where I have the following code in there to push changes to the database:
bs,EndEdit
Dim cb As New SqlCommandBuilder(myDataAdapter)
myDataAdapter.Update(myDataSet)
Normally, where do I place such code for updating when comes to deleting a row in datagridview? I noticed userDeletedRow event does not fired when I am deleting the last row in a one row datagridview.
I've updated my database...
And all the information goes in fine, and an Auto-Number is allocated.
Do I need to re-read the database to find & display this auto-number?
Where do I begin?
part of my code is in below
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I would expect to see the path.Path include the new record, however, I also notice that tempnextgen also include the new record. Can anyone help me out on this issue? Why the tempnextgen got updated as well, how to prevent this unexpected operation?
I have invoice form bound to a bindingsource and bindingnavigator. In the form I have unit price, quantity and total textboxes. The total textbox text property is set to total.text = quantity.text * unitprice.text in the textChanged event of both quantity and unitprice text boxes. The result is displayed in the total textbox. But when i hit save button on the bindingnavigator it is set to null and not saved to database. [code]When I used msgbox to see the value of total textbox before bindingsource.endEdit() it is the correct value. but after the code bindingsource.endEdit() it is null. I checked the databinding property and it is correct. What is the problem.
View 1 RepliesI've created a VB.NET Windows Form application which pulls info from an MSAccess database via datasets and tableadapter. When the user makes a change to the data, I use the Update method of the tableadapter to send the changes back to the database. This all works fine in the Visual Studio 2008 IDE, but once the build is done and the application is installed, I run into problems. The application keeps the original data and will not read or write to the database, although any changes I make through the application are mysteriously saved somewhere. If I make changes directly to the database using MS Access - which I need to be able to do - those changes don't show up in the data pulled into the application.
View 13 RepliesI can figure out how to do this, but Im not sure what I should be looking for. I have a database that gets updated about once a month, and when it does, it changes the name of the database file to match the date and time the new database was created.
The file name always starts with DB and the rest of the file name structure is DBYYYYMMDDHHMMSS (After the seconds, the file name is the same for all of the databases)
There are a few things I am trying to do.
1.I want to be able to search the update folder for whatever database is there
2.Trim the file name to return the database name as DBYYYYMMDD
3.Search the local database folder for the specific file name and return it in the same format as the update
4.Compare the two file names and choose which decide if one is newer than the other based on the date
What I need to know is what this would be called and what I would need to use to accomplish this.
how to get the updated database data and print into crystal report using VB.net?
Dim rpt As New CrystalReport1()
Dim myConnection As SqlConnection
Dim MyCommand As New SqlCommand()
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VB2008 with MS Access Database updated related data ?
View 9 RepliesI am using vb.net with phpMyAdmin MySql database. While running the piece of code below, the program hangs in the for loop before the variables are assigned values from the data table(dt)...
'Check for appraisal period-----------------------------------------------------------------------
Dim sqlCheckDate As String = "SELECT * FROM tblappraisalsetting where appSetID=(select max(appSetID) from tblappraisalsetting);"
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currently i had a program which working fine when its running in the solution explorer,but after published,problem comes.my datagridview cant show updated data while my database access already update...my datagridview only show existed data.could it be my datagrid problem?i get my data programmatically or is my INSERT command doesn't update the dataset?but in the solution explorer does show the dataset was updated. [code]
View 3 RepliesI can edit the values in the dgv cells manually, add rows, delete rows all without problem and then update the database.My problem is in one form where I want to allow the user to filter the rows in the grid and then enter a value in a textbox and programmatically update all the cells in one column with that valueI can update the rows, and see the changes in the datagridview. When I try and update the database (using UpdateQuery on the underlying TableAdapter of the datagird) only some of thechanged rows are being updated I though it might be related
View 9 Repliesi wanted to ask how to make picturebox1 ,to which functions are already assigned, perform the same function as picturebox2 ,to which no functions are assigned.For example:I have already made picturebox1 and have assigned it alot of function like when play button is pressed then picturebox1.visible = true and when we press pause button picturebox1.visible = false. So now i decided to make a theme and have to remove the picturebox1 and want to allow the picturebox2 to havefunction of picturebox1.But when i disable the theme the function of picturebox1 should go back to picturebox1.
View 6 RepliesI have a form that I am loading text (strings) from a database into a label.text (so the text from the database shows up into the label) I have done this code in a class that keeps all my database stuff seperate.
Public Function getQuestions() As List(Of String)
Dim question As New List(Of String)
objConnection.Open()
objReader = objcommand.ExecuteReader
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Within the form that the label is in I have done this code
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Label1.Text(db.getQuestions().ToArray)
End Sub
I am basically making a quiz, so that when the form loads, question 1 is on there is 4 possible answers. You then press next button and it goes to the next question.
how can i call data from database that newly updated(into row) to be inserted into a labels, here is the screenshot:
View 2 RepliesI want to get a value from my database and display it in a label. For example I have a table named customers and one column of it is called Cust_ID, now I want to get the value of the column Cust_ID and place it in my label. I used lastName as a search condition to get just a specific Cust_Id. [Code]. The only problem I have is how will I transfer the cust_ID to my label, I have no idea how I will do this.
View 2 RepliesOn my form, I have many labels. Each label's name is like 23SW001, 23SW002..and so on. Then i also have an access database that has a table name tblWorkstation. Then what i want is, if the form loads, it will compare all of the label names to my database. If the label name does not exist in my database. I will change the labels background property.
View 1 RepliesWhat I am trying to do is update a label with a value from a sql table using a combobox.this is a record from the table concerned
Species_ID (PrimaryKey) | Species | Genus_ID | Avg_Length | Avg_Height | Est_Weight | Diet_ID
1 rex 1
46 18 14000
1
On my form I have a combo box that is bound to this table with Species_ID as the Value Member. When I select a value from the combo box I want to update 3 labels with data from the Species_ID row corresponding to that value.
I have a problem trying to capture data from a database to a label. I am trying to display a list of values from my database when i press a button.
This is my code for my database
[ CODE]Dim strDBFileName As String
strDBFileName = "My DocumentsCDRecord.sdf"
If File.Exists(strDBFileName) Then
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I have a form to add new records with label at the top to show the ID (number of row suppose to be newly as soon as save/update button is press). Eg: There had been 20 rows, ID counts to 20. The next row should be 20+1, and i want it to be appeared in the lblIDnumber.
View 1 RepliesHow do you insert label values to database? here is my code..
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i have a problem trying to query my database based on a value in a label. Here is the code for the query,
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I'm making a Pong game and currently when the game ends the scores are show in a lable and a message box pops up saying which of the two players won.
However the problem i am having is i want it so that the player who won has their score saved to a database so i need to know how to get the score from the Lable to save to the database but then also have a way possibly a message box ? where the player can input the desired username. so the database would have two collums username and score where score is updated automaticaly and the username is entered by the player.
i just want to ask how can i show information from my database into label..
Im using Visual Basic 2010 and . Net connector..
this is my sample codes and i dont know how to put it..
CN.ConnectionString = "Server=localhost; database=libsysdb; Uid= root; pwd=dbpass; Port=3306"
Dim myCommand As New MySqlCommand
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