DB/Reporting :: Update A Database When I Click In A Button?
Mar 31, 2008
I am using visual studio 2002,and microsoft access,and i am trying to update a database when i click in a button, depending of what i enter in 2 textboxes.the code goes like this:
Code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim cmdUpdate As New OleDb.OleDbCommand("Update Shippers set CompanyName=Textbox1.Text where ShipperID=Textbox2.Text", cnn)
End Sub
I'm doing it this way, but it does not work.,
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Feb 15, 2009
May i know what is the code to automatically send the current time or date to database once i click the button? Since i'm using:
Label11.Text = System.DateTime.Today
Label12.Text = TimeString
That mean the time will keep on running.. What i want is when i click the button, the current date and time will be recorded.
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Dec 15, 2011
I have a datagridview and each time i enter values in database the values are not reflected in the datagrid untill i load the form again.I want a method tat updates the datagridview without reloading the form.M using Microsoft Access 2003 database.
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Jan 12, 2011
I am using visual studio 2008 vb language I create a sql table and i want to show it in a nice format. I use the report wizard and point everything to the sql table. i create a form with the extension rdlc (i think its crystal)from my main.vb i want to click a button and open up report1.rdlc how do i do that?
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May 23, 2009
i'm using vb 2008 express editor, and 3.5 compact sql, through my program, i make changes, like altering rows, deleting or adding new rows, to a dataset. i want, that when button 1 is pressed, all changes made to that dataset, are updated to my database. what is the line of code that does this? [Code]
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May 30, 2009
I'm trying to update an MS Access database, but that doesn't seem to work. I do NOT get an error, but nothing changes in the database.
Code:
Dim myCommand As OleDbCommand = Nothing
Dim strUpdate As String
strUpdate = "Update Settings Set Data = @Data Where Name = @Name"
[Code].....
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Aug 27, 2009
I�m trying to make a simple database editor using DataGridView.I have one DataGridView containing a lot of data on products and some parameters on how they should be tested. Some of these parameters, for example "Test method", is just a number. But if I look in the table for Test Methods that number has lots of other parameters. So if I select a "Test Method" Cell and click a button that table opens in a new form with just that "Test Method" (if I for example have selected a cell with the number 1, Test Method 1 will be shown in the new form). So far everything I�ve said works. I can even change values and update it to database in the first "Products" table. So here is the problem The DataGridView that shows the products is bound to a table and always shows the same thing which makes it easy to change and update using the following code
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Me.INPUT_PRODUCTSTableAdapter.Update(Me.TestPlattformDataSet)
Me.TestPlattformDataSet.AcceptChanges() End Sub
This will change later when I add a search function. Then this will need the same modification aswell. The DataGridView thats shows the other parameters can�t be updated using just this code cause I get an error that says
"InvalidOperationException" "Update requires a valid UpdateCommand when passed DataRow collection with modified rows."
It seems like the problem is that because I change the data under run its not really bound to the database. And I haven�t found any complete solution to this. I have found some similiar problems and it seems I need to update each row using the command
TableAdapter.Update(DataRow)
Here follows the entire code for showing the Parameter Table in a DataGridView. This does not work.
Public Class Form3
'ID is the value from the cell selected in the Products table
Dim ID As Integer
[code]....
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Nov 22, 2010
So im writing a program, basic enough, to allow a tutor to enter student marks into a database and edit them and navigate etc...on my form that displays my database information, when i click on the update button im getting a syntax error. "Syntax error in UPDATE statement." Code below :
Code:
Public Class frmDatabase
Dim iResponse As Double
Dim con As New OleDb.OleDbConnection
[CODE]...
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Jul 6, 2009
I've been searching the net for a week now but I can't find the answer I'm looking for.
[Code]...
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Dec 12, 2008
i am trying to update database with updated data in data adapter. here is error message. "Update requires a valid UpdateCommand when passed DataRow collection with modified rows." here is my code.i get this error when i try to update dataadapter with following line.
[Code]...
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Dec 19, 2008
I have recently wanted to start work on an application that uses an MS-ACCESS database. The problem is that no matter what I do, the actual database will not retain any records added. I have followed the Microsoft examples to the letter and it does not work. As long as I have my app running I can add, edit and delete the records. As soon as I close it and run it again, all the records are gone. The mdb is not read only, I've checked it. I also decided to try the my video collection example program that is included with VB 2005 and it will not retain any records either. Is there any code I need to add to get this to work or is my copy of VB 2005 broken? This is extremely frustration because I plunked down a lot of money for Visual Studio 2005 Professional. This is a key feature and it should work. Microsoft had me do a reinstall and apply a couple of patches and it still did the same thing. They told me either I am not coding it right or my system is flaking out. I did a fresh install of Windows (I even formatted the drive before installing), and reinstalled VS yet again and even with that being the only program on there, it still will not work. So I installed all my programs again, restored my backups and now a day and a half later I am writing this.
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May 31, 2011
I have a simple ASP.NET page:
sub Page_Load
//Get data form databse and show it
end sub
sud deletsome(Source As Object, e As EventArgs)
//delete one record when user click on submit button
end sub
When I click the button, the page reload, all the data have no change, I must re-enter the page again, the record I have delete disappear. Can you show me why? The full code here:
[Code]...
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Jun 23, 2012
Imagine you expand onto 'Sofas and armchairs' and click 'fabric sofas', it will redirect to next page on click and it will send data '10661' to the next page. Then the listview will updated with reference '10661'. After that click on another link, maybe leather sofas. The listview will re-update table with new reference '10662'
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May 13, 2010
I have done this mini proj. But i dnt know to update the Database when i click update button in Candidate registration form.
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May 20, 2012
I want to add booth detail into database, after user insert booth alias, select booth type and booth duration, next click submit button and the newly added record will appear in the gridview below the old records. I know there are something missing in the code but I not sure what is the problem.
The client code:
[Code]...
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Nov 16, 2011
This is a very basic question. How do i update a sql table from vb.net on save button click. This is my insert to code....how would it be for update?
[Code]...
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Mar 17, 2010
I have a button which is in update panel. When I click on button then it click event run two times. How can I prevent second time click event?
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Nov 10, 2011
I have programmed gridview, where you Edit a row and then update it using link buttons provided on the row.But when a user has to make couple of edits on the same grid, it should be saved with one button click and one refresh to reflect updated data.
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Apr 22, 2010
url...I've got a drop down inside an update panel, and I am trying to get it to allow the person using the page to add users to a list that is bound to a gridview. The list is a global variable, and on page_load I set that to the gridview's datasource and databind it. However, anytime I click the 'add a user' button, or the button to remove the user from the list. It appears like it is doing a full post back even though all these elements are inside the update Panel.[code]Now I thought the point of an update panel was to be able to update things inside of it without doing a full post_back and reloading the page. So if that's the case, why is it calling page_load everytime I click the buttons? I ran this code and debug and I see that even before any of the code associated with button press fires, page_load runs again.I tried putting the gvAssociatedUser.Datasource = associatedFaculty and the line below inside the Page.IsPostBack check, that prevented the page from working. I tried every combination of settings of the update panel for ChildrenAsTriggers and UpdateMode, and none of them worked.
I've tried won't get it to work.It wasn't causing a full postback so I was wrong as to the cause. I thought the page was doing a full post back thus resetting my associatedFaculty list global variable, but it isn't doing a full postback.The issue I am having is everytime I click btnAddUser it will add one element to the associatedFaculty list and thus bound to gvAssociatedusers. This works the first time, but the second time I click it, it overwrites the first element. So it appears like my associated Faculty list is getting reset each time I click the button?
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Oct 11, 2010
I use VB 2008. I want to check that text boxes have correct data but not at key pressed key down event. I want to check when user fill the form if all have correct data then insert into database otherwise get focus of specifiq textbox which have wrong data. I see many examples but all is applied on keydown keypress etc events. I just need a class i send Textbox as object in that which return true or false. I need one method in that class which check only numbers with decimal point and limit decimal places to 4 digit.e.g 12345.9876 and other method check A to Z and a to z with some special charecters like @ # $ % & ! ;
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Nov 20, 2009
I need update the text of a textbox when I do click on a button on a user control.
How I can do that?
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Nov 19, 2009
I need update the text of a textbox when I do click on a button on a user control.
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Nov 17, 2009
What I am trying to do is get specific info from a database and what I am getting is the first entry.
I have made a database connection, made the top bar not visible and I have inserted a text box and multiple labels. My MDB database has 3 columns (street, city, postcode) and multiple rows.
What I want is when a user enters a postcode in the text field the other labels get the info related to it. I.E. when a user enters "FY1 3DL" the labels update to "King street" and "Blackpool". With the code below I get the first row from the database.
Code:
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Me.StreetsTableAdapter.Fill(Me.WcipcodeDataSet.Streets)
End Sub
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Apr 25, 2012
I have a popup aspx page that receives data from a parent page gridview Edit click. There is a great deal of parsing of data from parent page to pop up as the data is being translated in pop up, then sent back to parent page to be reassembled in the original text block before update.
When the popup passes the data back or is canceled, the parent page gridview is still in Edit mode.I would like to pass the Cancel or Update button click from the popup to the parent page gridview so it can complete the update or cancel event without asking the user to click the corresponding command button link from the gridview edit mode, to Update or Cancel.
UPDATE: There is also a jquery UIBlocker on the Parent page to prevent the user from returning to the page until the PopUp page processing has been completed. Below is the critical code:
PARENT Page:
function parentFunc(a) {
// Unblocks on return from popup page.
$.unblockUI({});
[code]...
Had a problem with preventing the popup from reloading. So there is an if condition in the load event. A dynamic number of controls are built on the popup as literals. So the Page Init event and Page Load event fire on non Postback to rebuild the controls.
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Jan 7, 2012
i have problem with an update button for my application.The code for the addnewrow and updateinformation button is as follow
Private Sub btnUpdate_Click(sender As System.Object, e As System.EventArgs) Handles btnUpdate.Click
btnUpdate.Enabled = False
btnDelete.Enabled = True[code]......
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Nov 4, 2010
How can I increment the count in database while click on the button in vb.net??
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May 16, 2010
I want to open an accessdatabase in vb.net with a click of a button.I found this example code at the microsoft site.[code]I've added it to my project, but it gives an error that the type 'Access.application is not defined'.
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Mar 11, 2010
I am creating a project that accesses various databases and am stuck on deleting the database. I am using a Jet connection and I am able to display the database in a data grid view but I have two problems.The first is when I click on a certain square and I want to delete this row then how am I able to do this?The second is I want to delete the whole database with a click of a button.
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May 13, 2010
I am trying to delete a row from my database with a click of a button, my code is below but i keep getting this error "System.Data.OleDb.OleDbException was unhandled ErrorCode=-2147217900 Message="Syntax error in string in query expression 'Name=Sky ''."
Dim con As New OleDbConnection
con.ConnectionString = _
"provider=Microsoft.JET.OLEDB.4.0; " & _
[code]....
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Nov 21, 2009
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
GRName = TextBox1.Text
[code]....
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