EndEdit Doesn't Add Record?
Aug 29, 2009
I have a DataGridView that loads an Access database when the application starts. I also have a bunch of text boxes that are bound to the same database. When you click on a row in the DataGridView the text boxes display the data for the record you clicked on.. perfect so far... now when I want to add a new record..
I do...
BindingSource.AddNew()
This removes all the data from the textboxes and I start typing away.
When im done I hit a Save button with the following code.
BindingSource.EndEdit()
It removes all the data from the text boxes but never saves to the database!
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Mar 5, 2010
GetChanges() doesnt see changes made using beginEdit & endEdit?The data is bound is also bound to a DGV and when I edit there "manually" by entering cell and call GetChanges() it works correctly.
'Does RateType already exist in table?
For Each row In dsRates.dtValidLaneRates
_tableID = row.tableID
If row.RateType.Contains("Default Rate") And _
[code]....
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Jun 8, 2011
I have ran into a problem that i cant get my head around, I have the following code(see below) this all works fine if there is a imgID ='5'but if there isn't a record in the sql table with the imgID 5 then i get the following error Indexoutofrangeexception was unhandeled, there is no row at position 0 which just tells me that no record exists. Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Using conn As New System.Data.SqlClient.SqlConnection("Data Source=localhost;Initial Catalog=ImageGallery;Persist Security Info=True;User ID=mbish;Password=mbish") 'insert your connection string
conn.Open()
Using cmd As New SqlClient.SqlCommand("Select Imagecontent From ImageCollection where imgID ='5'", conn)
Using dr As SqlClient.SqlDataReader = cmd.ExecuteReader()
[Code]...
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Jun 26, 2009
When I add, update or delete a record using DataGridView, which events should I use for applying these changes? I'm binding DataGridView's DataSource property programatically. I only connect it with a DataTable. I'm not using a BindingSource. Is this the reason why doesn't DGV apply record changes automatically?
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Jun 16, 2012
I'm using a DataGridView that gets its data from table in Microsoft Access, one of the fields is a Short Time type record (e.g 16:00) but when the DataGridView is loaded it shows the record as "16:00 12/31/1899" and never shows only the ShortTime.
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Apr 27, 2011
I am using a not equal operator <> in my sql statement but it doesn't retrieve any record which is not equal to the selected date.
CODE:
Command = New SqlCommand("SELECT * FROM [Products] WHERE [ParkingStartDate] <> @StartDate", myConn)
Command.Parameters.AddWithValue("@StartDate", StartDate1)
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Apr 4, 2009
I have a detail form that get filled in by values from a table adapter. When the "endedit" is called as part of the update routine, one of the fields is changed for no known reason.
How can I find and look at the actual code that "endedit" uses?
Or how can I regenerate the code?
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Apr 21, 2010
I set a radiobutton.value to true. when I go to save and perform bindingsource.endedit. radiobutton.value is then nothing. any ideas as to what could cause this?
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Jun 19, 2006
radiobutton.value is nothing on bindingsource.endedit
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Apr 19, 2010
I have data bound text boxes that loose the entered data in "BindingSource.EndEdit() code. This would seem to violate all forms of logic. I have provide my code below as well as a copy of the debug.print data.
Private Sub SaveToolStripButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles SaveToolStripButton.Click
Me.Validate()
ErrorTrap = 0
[Code] .....
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Dec 16, 2010
From what I've read in the documentation, both of these methods roll the state of the datarow back to where it was the last time AcceptChanges was called. So what is the difference between them? Am I wrong about that?
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May 28, 2009
i have a datagridview bounded to a bindingsource that's pointing to a datatable created at runtime. In the same form i have a Add New, Save and a Cancel Button,the Add new calls the addNew, the Save Calls the EndEdit and the cancel the CancelEdit. Now the problem, if i fill only some fileds in the new row and call the cancel edit, the row is deleted, but if i fill all fields and i call cancel edit nothing happens.What i want it's, when i press the cancel button even if i put values in all fields the row get deleted.
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Mar 8, 2010
I have a datagridview that completely updates anytime changes are made to it. It is not connected to a source but rather the datagrid is filled when first launched.
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Mar 27, 2010
I have bound TextBoxes. When I edit anything, I have to move to the next or previous record before calling the Update Method for that record to be updated. With my DGV, I use
vb
Me.dgvSalvageListing.EndEdit()
and it will update as expected. So, how would I do something similar to my Simple Controls?
vb
Private Sub UpdateDb()
Try
' Write changes back to db
[code]....
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Apr 18, 2009
I hav a web service which pull records from a database and I am hosting these services in IIS which works fine but I am trying to retrieve the record and display the record in a listbox displaying the time field as the text for that record.I have created the following function
public sub get_data()
dim dt as new data.dataTable
dim service as ws webservice.webservice
[code]...
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Aug 9, 2010
I am trying to check a record in database before inerting a new record here is my code but problem is when i enter a names first alphabet it imediatly populate massage. i want to check it after entering whole name
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
Try
Dim cnString As String = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" &
[CODE]...
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Jun 12, 2011
I am trying to change the background color of a tooltip
I am using tooltip.backgroundcolor = color.colr
No errors but thecolor doesn't change
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Oct 13, 2010
I use Visual Studio 2003, VB.net, NetFramework 1.4 and Windows XP I have been using the following Code Snippet for a number of years in both Web Services and Windows Applications. However suddenly around the 29th September 2010 it has stopped sending E-Mails from both Web Services and Windows Applications. The same problem has happened not only to my own Network but on two other Networks, one using XP as its Server and the other using Server 2003. All 3 of these are using different ISPs.
[Code]...
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May 17, 2010
How do I force users to save the current record (if current record has changed) and not let user go to the next record unless the save button is pressed?
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Feb 21, 2010
While I've previously many years of relational databases and procedural languages, I'm stumbling with Visual Basic. In this problem, the simple situation is that I have two files, parent and child. The primary key of the parent file (Area file) is linked by a relation to one of the two fields that makes up the primary key in the child file (Project file) (unique key is formed from 'area' and 'project'). I have the default table adapters created on both files. I have created two maintenance forms showing one each of the two files in datagrid view format.I can create some records in the Parent (Area) file, but when I try to create a record in the child (Project) file, using one of the valid key values from the Area file, I get the 'ForeignKeyConstraint [relation name] requires the child key values [actual value] to exist in the parent table' which I'm absolutely definitely sure it does.
I haven't done any actual coding for those two maintenance forms, just dragged-and-dropped the files from the data sources screen onto separate forms so it creates the controls itself. But I can't work out, if it already knows the data does exist because I can load it back in to the Area maintence form, why it can't check itself to find out the record does exist. Why does it think the record from the parent record doesn't exist? It does exactly the same thing, whether or not the database is in access or SQL Server Express. I have all the latest updates.
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Jul 31, 2011
I have two tables Products and Categories with a many to many relationship. I am trying to copy the categories linked to one product (OriginalProduct) to another product (newProduct). The problem is when I execute the SaveChanges() method, I not only get the records in my linking table, but it also creates another copy of the categories in the categories table. I've tried this in many ways but here are the last couple that I've attempted:
' Copy Product/Categories
For Each oneProdCategory In OriginalProduct.Categories
Dim relatedCategory = _productContext.GetObjectByKey(New EntityKey ("ProductInfoEntities.Categories", "RecordId", oneProdCategory.RecordId))
[code]....
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Nov 15, 2009
I have a problem with my program, and it's really bad because I need to burn it to disk within 12 hours and I can't get it to work: If I create a record, add information to it and click on Next Record, the ID, Status and Notes boxes content will change but the rest of the controls contents are carried over to the next record and I don't know why or how. It was working perfectly but now it stopped and I never done anything.
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Oct 27, 2009
I am handling many of the BindingNavigator tasks (MoveFirst, MoveNext, etc.)in code to ensure that I always ask the User to save his changes.
The one area I am have a problem is PositionItem. I would like to sense that the User has changed the Record Number in the BindingNavigatorPositionItem, handle my record Update, and move to the Record Number the User entered I have looked all over and have not found any way to do this.
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Apr 1, 2009
I have created a project that has an add a new record, edit record and a search form, that has multiple text, combo boxes and is working great.Last nite I have added a checkbox under my add new record form and i am saving the checkbox value to my database, so far so good. I would like to be able to search any record that is mark with a checkbox to show up in my search screen when I do a search: [code] The problem that i am having is that now that I have added the code to my project to search for the checkbox field in the search screen and if I leave everything blank and click on the the search button I get no record found. I expected to see all that data, since I have nothing selected. Now if I click my checkbox, as soon as I click on my search button I see that two records that I have added for my test.
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Jan 23, 2011
My database : table1
ID FIRSTNAME AGE
1 Sumit 22
2 Sanjeev 23
i have gridview 1 and textbox1 and button1 i want when pages load the gridview displays the all records from table1 and also ...i i wanna search record for firstname by typing sumit in textbox1 and click on button1 then in gridview the record of sumit will be shown ..by default gridview display alll records from table1 How to do this My Selct Query is below : but it doesnot display all record ...but it can display record if you search for a particular record .
[Code]...
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May 23, 2010
I have records in a database. Each record has a Picture path in it eg. "C:\Pics\Image1.jpg". I would like to display a record from my database and also the picture for that record, in a .rdlc report in vb .net 2008. i have succeded in displaying the record but just can't get the picture to show. I am using an Imagebox in the report.
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Dec 3, 2011
I use This Code To Save Data in Table First I delete record Then Insert record
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Aug 9, 2011
I am trying to write a system that will send an email to my Client and when my client reply I need to read the Email and push it back to proper Record for the Client.We are using Exchange and outlook, For Sending email I am using smtp with custom coding Which automatically record an email content to the Client File howerver how to read the reply as it is coming into outlook of user machine and push it back to the Proper Client record.
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May 5, 2010
Im wondering how would i work with a text file. which would allow me to Read the next Record, Cut record out of the program.
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Apr 15, 2012
I have a access database with these columns. USER_ID,COUNT,TIMES
Let say the current record is this:
USER_ID,COUNT,TIMES
STEVE20,24,1.5
Now I want to updated the current count record and times, but before updating I want the old record to be added to the new record. What should be my query?
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