1st, i try to "add", "save", and "delete" DataRow in DataGridView using Button in the same Form. I try to search in the internet but i cant find it at all.
Public Class FrmReminder
Private Sub BtnBack_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnBack.Click
[code]....
I have a form with multiple datagridviews. On save the entire dataset will be serialized to a strongly typed property bound to a sql varbinary(max) Works fine. Of course the current "dirty" cell will not be saved as mentioned here :
[URL]
My problem is the user could be coming from any one of 20 datagridviews when they click SAVE. Is there any way, short of checking for a dirty cell in each datagridview to commit any dirty cell before the save ( clicking another textbox control before the save does the trick but calling the focus() of that textbox prior to the save does not ) I was thinking perhaps catching the event of leaving the grid but it seems the base problem is clicking a button (for reasons I think I understand) does not fire lostfocus events for the current control and it doesn't seem the click handler args knows what the last current selected control is.
I have a main form (Form 1) with a menu strip and navigation bar. I use the main form to launch other forms (Form 2) as children of the main form.
All of the children forms contain SQL data sets /grids. I would like (if possible) to use the save button on the main form, to save data changes of the children form to the SQL database.
how to go about the code for a button to delete the row in a datagridview. i have rows of data in there with a button at the end of the row. the difficulty im having is assigning the values in the row to delete it from the data grid and then update the database to remove the entry.i've tried this but it doesnt work? i'm sure there will be some short statement to do it but dont know what it is.
Private Sub rentalDataGridView_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles rentalDataGridView.CellContentClick
For Each row As DataGridViewRow In rentalDataGridView.SelectedRows[code].....
I want to know how to delete record (row) in transaction.this is details :
label for show productID
textbox for insert product name
datagridview for show data
insert button
delete button
edit button
[Code]...
Visual Studio 2010 with Provider=Microsoft.ACE.OLEDB.12.0 ConnectionI have tried multiple ways to do this fought through Concurrency issuescurrent code gives no errors however when I re Fill DataSet nothing has been removed from database...
Current code for Button1(reload data), Button2(delete row):
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code]....
If you remove the AcceptChanges I get a concurrency violation for Deleted row information cannot be accessed through the row.
To Remove[code]...
To Add: I used this[code]...
How do I add the button that scrolls down / up as I add or delete rows on the grid?
I'm trying to delete the selected row in a gridview from the datatable but it seems like it's not deleting. in if statment Table.Rows.Count = 0 is not working and I'm trying this with one row in the grid view.
Protected Sub GridView1_RowCommand(sender As Object, e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles GridView1.RowCommand
Dim index As Integer = Convert.ToInt32(e.CommandArgument)
[Code].....
I have already done the creation of button and the dragging of button at runtime already.But now i need to know how do i save the last dragged button on the form and also detect the name of the last clicked button.so lets say i now drag a button to coordinates 25,254. so when i exit the form and the next time i launch it, the button will still be at 25,254. and this one will go on for the number of button i created like 100. so when i launch the form the 100 button will be at the exact position where i last saved them.the second part is lets say i created button1 and button2 on the form in runtime. so when i clicked the first button, it should display button1. and if i clicked on button 2, it should say button2. same goes for like 100buttons.
[code]...
I'm working with a disconnected dataset that is NOT using a database. I'm maintaining an external file in xml format using the ReadXML and WriteXML methods of the dataset. I have a Holiday table structure in the dataset with the following columns:
-HolidayDate
-HolidayName
When the app starts I read the Holidays into the dataset. I then check the Holiday table to see if any of the Holidays are in the past. If so, I want to delete the given Holiday row from the Holiday datatable. I'm running the following code: [code] If the HolidayDate is in the past it calls the Delete method ok but when it tries to execute the Next statement it raises an InvalidOperationException exception with the message "Collection was modified; enumeration operation might not execute".
I'm going through a book which is teaching me some basic coding principles of the language. The current section is detailing how to set up a master child form using two tables linked with a foreign key. The master table is displayed as a number of text boxes, and below is a grid with the child table which shows related records to whatever master record you happen to be checking out. At the top of the screen are the default navigation controls that are added with the grid. The master table is named Person and the child table Book. They are linked using a foreign key and have cascade set up on them.
The book informed me of the code required under the save icon on the navigation control so that when it is clicked both tables will be updated as required. It is as follows:
If Validate() Then
'Make sure editing has completed on both master and child tables
Me.BookBindingSource.EndEdit()
Me.PersonBindingSource.EndEdit()
[Code] .....
I have double checked that the code matches that shown, so this should in theory work fine. But if I manually delete a record from the Book (child table) grid and then click the Save icon on the navigation bar it comes up with the error "Update Requires A Valid DeleteCommand when passed DataRow collection with deleted rows".
Why changes made are not permanently saved to the database? I gather that it's using a "copy" of the data in the database but how do I get the code/form to make changes to the actual underlying database records as well as just the copy? I find this system very unusual, if someone deletes a record in the application why would anyone want this to be just done temporarily?
I have a DataGridView that loads info from an Access DB. The user can change the data accordingly, but how can I make it so the form will save the data that was changed? I know I'll have a SAVE button... but not sure what methods to be calling on the DataGrid
View 6 RepliesI am trying to update my form once the delete button is clicked. There are several fields like Name, Date, Date of Birth and so on. Once I delete a record I want the form to automatically load with new / updated data. This form fetches data from MS Access using OLEDB I have spent a long long time trying this but did not get any solution.
View 3 RepliesI need to make a save button. The user will work in main form. User also has Settings in the MenuStrip, when the user clicks Settings a new form will open. There user has ability to make changes that will affect the Main form. This is the code:
If CheckBox1.Checked = True Then
bib.Panel2.Hide()
End If
This is the change that the user will be able to do that will affect the Main form, but I'm not really sure how to make that the CheckBox1 will be saved when the user clicks it and the clicks OK button. I also want to know how to make a cancel button.
I am busy with a Windows Forms application.The purpose of the application is to convert Excel documents to HTML format so that they can be published to a website.I have most of the code finished and the application is looking really good.I have although encountered a problem. On the Form I have created an Export, File and Edit button.With the edit button I would like the user to be able to select whether they would like to save the 1st,2nd,3rd sheet and so forth.
I would like to create a window/Form within the edit button that would say something like "select excel sheet" along with a save button where the required sheet number could be saved or selected as a standard save procedure everytime.I know that I need to do this with the settings.settings control. I have tried numerous ideas up until now but it continues to baffle me.
I have a form that has around 4 txtboxes. Data is inserted into these boxes and then a "Save" Button is pressed. I have a GridView added to my form and want to view the entries. The issue I am having is that when I click the save button the data doesn't show up in the DataGridView until I close the application and then re open it.
[Code]....
I have a form in visual basic 2008 in design view. how do i use a button to save the form i am working on, and then open a new form, I think the code is something like this!
Private
Sub Button2_Click(ByVal
sender As System.Object,
ByVal e
As System.EventArgs)
[CODE]...
But how do i open form2 and close form1 Using the same button. the code Below does not work (Why?)
Private
Sub Button2_Click(ByVal
sender As System.Object,
ByVal e
[CODE]...
if could modify the following code for me so that it save data row by row from a DataGridView into SQl Server. Currently, the code saves data from all rows at time instead of saving only the recently added data in a row or rows when the user clicks a button.[code]...
View 1 RepliesI want to know how can I map the data inside datarow() into datagridview???
Here is detail:I have a dataTable which contains data from DB.I use a search function to search this table.
Dim dRow() as DataRow = dtStudent.Select("sID='" & txtsID.Text.Trim & "'")
If dRow.Length <> 0 Then
' This not working!!
' dgView.DataSource = dRow(0)
[Code]...
I am working on a project that allows the user to search the database for particular records, then passes the record that the user chooses to the main form to be manipulated or changed. Yes I am aware that I could let the user change the values in the datagridview, but I do not wish to do that this way. This is the code for the event that fires when the user presses the button to return the selected row:
Private Sub returnBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles returnBtn.Click
Dim ActRow As ds.ActivityRow
[Code]....
I need to display a column called Full Name in the my datagridview, but the datasource (datatable) does not have a FullName column. It only has FirstName and LastName columns. I'm setting up my DataGridView like this:
[Code]...
i have a problem on how to pass all viewable datarow from datagridview and insert into a database using vb ??
View 17 RepliesI have a datagrid being filled by the data adapater connected to my database.I have a delete button on the form, i cant figure out how to delete the selected row on the datagrid when the delete button is clicked.
View 1 RepliesMy question is: how to delete a specifically cell in sql datarow from a specifically datatble to insert i have the folowing
Dim AgendaData As New AgendaData AgendaData.TijdDagWeekJaar = TijdDagWeekJaar.Text AgendaData.WeekJaar = WeekJaar.Text AgendaData.JaarMaand = JaarMaand.Text AgendaData.Jaar = Jaar.Text AgendaData.textbox2 = onderwerp1.Text AgendaData.textbox3 = Onderwerp2.Text AgendaData.textbox4 = Onderwerp3.Text AgendaData.textbox5 = Onderwerp4.Text AgendaData.textbox6 = Onderwerp5.Text
[Code]...
I'm trying to create a save button on my infopath form that when clicked, it automatically saves the infopath form to a directory. I'm running into some issues, I thought it would be simple but is quickly becoming confusing. [code] I've tried searching all over but couldn't find an answer that pertained to xml documents such as an infopath form.
View 4 RepliesI am a bit stuck with coding my save button and combobox.My entire form is ready, database is linked.All fields from DB are linked to their textboxes on the form.But i just ran into a big wall which i cant seem to break down.My save button, which is used to save the content from all the textboxes on the form to the access database refuses to work.The other this is, i want to use a combobox on my form to view the already saved entries in the access database.I think a combobox works for that, but i am not exactly sure how to pull that one off.
View 5 RepliesSo I have the following
With Me.dgv
.AutoGenerateColumns = False
.DataSource = Info.PESList
[code]....
I build my project and i got some problems. First i want to print barcode for books(toolstripmenu item). but i cant. here's the code that i found:
[code..]
second problem is printing again. i want to print my MS ACCESS .mdb from child datagridview's records.
third one i want to save and load(with dialogs) my database from main form to child forms' datagridview.and the last one is help provider. i prepare my own .htm help file, when press F1 it opens. but i dont know how to call provider to toolstripmenuitem and help provider keep my computer's path so when i call provider another computer, the programme cant find the path.
I have a Datarow array but now I need to show each row in a windows form so that the user can look through and find a suitable entry. Ideally the form would be like the DataView display with a BindingNavigator to go through the entries one by one. I have searched everywhere for some indication of how to do it but to no avail. [Code]
View 8 RepliesComing across a curious problem... I'm using a SQLCE database. In thebindingnavigatorsaveitem I have the generated code.. the validate, bindingsource.endedit, and the tableadaptermanager.updateall.Here's what I'm doing. I create a record and then click save. Then I decided to delete the record. When I try to save it again, I get an error - "System.Data.DBConcurrencyException: Concurrency violation: the DeleteCommand affected 0 of the expected
View 8 Replies