I know I've done it before but I'm drawing a complete blank on this.Where can I modify the code for:
BindingNavigatorAddNewItem_Click
I need to add a try catch block to it because if the user clicks on it twice, it tries to add a second new blank record and throws an exception.
I created save,delete,next,last buttons.How do i correspond them with the navigator control.This is what i need to do as per the assignment.Both the customer and order tables should have buttons which correspond to the BindingNavigator control. There should be NO BindingNavigator controls. The user should be able to save, delete, go to the first or last record, or go forward or backward one record at a time.
View 1 RepliesI'm using a SQL database and I want to bind five tables to one Binding Navigator.
View 3 RepliesI have a form called studentForm which has a studentCombobox, studentTextbox and a studentDatagridView
In the constructor of the studentForm I need to bind studentCombobox to the StudentbindingSource of the main form and to bind studentDataGridView to appropriate binding source in the mainForm.So that this datagrid view displays all the bookings for the studentID currently selected in studentComboBox
studentComboBox.DataSource = MainForm.StudentBindingSource
studentComboBox.DisplayMember = "StudentID"
studentDataGridView.DataSource = MainForm.StudentDataSet
studentDataGridView.DataMember = "Names "
This is the code I wrote in the constructor
I am trying to bind my SQL param's qurey to bind to a table. My problem is i get this error "Fill: SelectCommand.Connection property has not been initialized."
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
If RadioButton3.Checked = True Then
Dim connectionGrid As SqlConnection = New SqlConnection("Data Source=BST;Initial Catalog=dsfs;uid=dfsdf; pwd='dsfsf'")
Dim commandgrid As SqlCommand = New SqlCommand()
[code]....
First of all, I'm quite new to using Visual Basic. This is my first time using a Binding Navigator in a program that I am creating.I have the base of the binding navigator working, data source has been connected (fields etc.). What I need to know now is how I can create a new entry by clicking the '+' button on the navigator, and the new entry appear in the Access database
View 3 RepliesI'm currently developing an application with a reasonably complex DataGridView that allows the user to build the lines of a sales document: Quantitiy, Description, Price, etc with some additional fields to help calculate price based on cost or discount i'm sure you get the jist - all this means we're not just diplaying data but adding and manipulating it - It also means there's mainly decimal fields, nit just simple text fields
Now, i'm new to VB.net, so i've perhaps done things a bit backwards during my learning curve, namely designing and coding my DGV before creating the underlying database table and binding to it - so as i'm sure you can image there's a bit recoding to do to allow for the fact that it's now bound to a datasource.
I'd got the DGV working just how a wanted it to, but now that i've bound it to a datasource i'm hiting multiple problems with: Formating the appearance of figures in the DGV Problems with blank fields while enering data (before the i try to save the data back to the database) How the DGV is functioning - it seems to behave differently when adding lines to a new sales document than it does when adding lines to an existing sales document
And given that when saving edits to an existing line i need to provide a valid update command i'm begining to think that it might be easier to scrap the databinding altogether and just Select, Add and Edit the database with code rather than binding the DGV in the IDE
I've read various threads about avoiding databinding due to it's limitations, but i've also read that it's far better in later versions of Visual Studio and .net. and i'm using VS2010
I'd just like some advise as to whether my gut feeling is right or whether i should persevere with databinding the DGV. i've noticed some quirks of databinding while working with other controls such as text and combo boxes, but i've overcome these and the result seems to be easier than coding the data transfer manually.
But i'm really struggling with databinding the DGV and the fact that i'm dtatbinding to a seperate table to the rest of the controls is leaning me away from databinding
i have a created a project that enables the user to choose any access database and presents the different tables on a treeview... after that the user is able to drag and drop fields on to another form and automatically controls (text boxes, combo boxes etc.)are created with their respective data bindings... it also creates a binding navigator.... my problem is that i cannot get to add or delete records from the database using the navigator... when i add and try to save it i get an error "Update requires a valid InsertCommand when passed DataRow Collection with new rows" and i get a simiral error message when i try to delete something (plus it deletes everything from the database not only the record chosen).. here is the code i use for the add and delete
Private Sub BindingNavigatorAddNewItem_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles BindingNavigatorAddNewItem.Click
Try
[code]....
im having a problem populating my data gridview i have use the methond of "add new binding source" on the data sources tab,and drag all the controls on my "Add Form" and the Marriage Table i drag it on my "Print Form".but every time i add record on my add form(using binding navigator) the record i added dont appear on my "Print Form" Marriage
Table :( and when i open the "add form" again the record i added is not saved.
I have two forms with a label on each form. Both labels are bound to the same tbl/fld in a database. When I run program and use binding navigator to scroll thru the data on form 1, I want the form 2 label positioned at the same point when it is shown.
View 2 RepliesSaving data from textboxes to a dataset Default Values - Binding Navigator But i could not do it or didnot understand how to do it. I have a Binding Navigator created by the wizard, I want to put a value "A" in a Textbox when adding new record (press +). I had tried to use this code in txt_site_GotFocus and BindingNavigatorAddNewItem_Click
View 2 RepliesI need to insert values into a text-box in a database form, after a 'Add new record' event has been executed
If i code the 'add new' button click event on the binding navigator my code is run first before the record is inserted. This over rights the displayed record then the new record is inserted. Where can i place my code to run after the record has been inserted
I have a problem with binding navigator in vb2005 express. It won't update and delete records.
View 1 RepliesI am a newbie using VB.net in VS 2008. I took over a vb.net winform application that has a binding navigator in it. The users wanted to add 2 new fields to the form. I added the new fields to the SQL Server 2005 database. I refreshed the Data Source tab in the project. It recognizes the 2 new fields.
I dragged them onto the form. When I go to add a record through the application, it does NOT save these 2 new fields. I check the properties for these 2 new fields under "Data Bindings" and it shows under the "Text" property the correct Binding Source and column name. I need to store these 2 new fields to the table.
I have a form with a binding navigator on it. It also has a DGV and text boxes bound by the binding navigator. Everything works fine. If you scroll through the row's in the binding navigator it updates the DGV and text boxes at the same time. And also if you click any row in the DGV it automatically updates the text boxes.
Ideally I want to impletment some validation to make sure the users are not only filling in all the required text boxes but also that the data entered is correct.
I have some validation setup in SQL, for example not allowing nulls on particular columns but I really need to be more extensive in the validation than that.
Ideally I need some way of validating the current row selected whether it's an existing row or a new one, before moving to the next row or before save is clicked on the binding navigator. Firstly because the SQL validation messages are not very good, secondly because whilst the data may meet SQL's requirments, it may not be right. For example SQL might accept 12:00 as a time but the program specification requires the user to input within a certain time frame, i.e. 14:00 - 16:00.
Finally, I feel like the validation needs to be handled immediatly on the record that is displayed as ultimatley, the way the form is setup, allows the user to add and amend more than one record at once and if the validation was handled on 4 or 5 different rows then it would bring another problem of having to bring each row up to correct. Therefore I think the best aproach is to handle each row before allowing the user to move onto another one.
I am using VS 2008, VB, and an Access db. I cannot get the save button on the binding navigator to work. I dragged the table from the datasource onto the Windows form creating all of the controls, including the binding navigator. I can add records but I cannot update. The code below is what I have (the commented code is what I have already tried):
[Code]....
I am trying to customize the default binding navigator as i inherit it to my own class and add some buttons to it.every thing gos fine and great as i want it, but the problem is when i change any thing in the AddStandardItems() method class dos not reflect to the existing form which has the same class, i have to remove it from the form and put it again to reflect the changes.This is not good solution, i have more than 30 forms using the same Binding navigator class and it is not possible to remove it form all those forms and put it again.the code for the class is:
Public Class Bind2
Inherits BindingNavigator
Private WithEvents DtEditButton As ToolStripItem = Nothing
[code].....
I am trying to customize the default binding navigator as i inherit it to my own class and add some buttons to it.every thing gos fine and great as i want it, but the problem is when i change any thing in the AddStandardItems() method class dos not reflect to the existing form which has the same class, i have to remove it from the form and put it again to reflect the changes.This is not good solution, i have more than 30 forms using the same Binding navigator class and it is not possible to remove it form all those forms and put it again.[code]
View 10 RepliesI use the binding navigator in my application, but when the resolution of the display gets to small and I have to use the scrollbars, then I get a problem. The scrollbars automatically scrolls down below the navigator bar instead of showing it when the window loads. I figured it out using focus or select. it now loads on top,but then I got a second problem.When I press on my tab-control it "autoscrolls" down again and puts the tab-control as the first visible thing on the screen instead of the navigation bar. How can I prevent that?
View 1 RepliesI am using the BindingNavigator control on my form. I want to use my own buttons instead of "BindingNavigator". I tried double clicking on "Binding NavigatorMoveFirstItem" button to see the code behind it. But nothing is there.What is the code to use the BindingNavigator but on my custom buttons? Actually I want to use my custom buttons but the same code which BindingNavigator uses and then I will delete the BindingNavigator.
View 7 RepliesI have a form application created with Visual Basic Express Edition 2008 which has a Binding Navigator that navigates through records in a database (Access .mdb file Added with the "Data Sources" wizard). My problem is thus: I need to run code straight after the form controls have been updated with the particular records data. Is there any way of doing this? I'm stuck because all the backend database code is hidden.
View 3 Replieslooking for simple code for adding, deleting, editing, and updating data using binding navigator in vb 10. first time using, been using vb6 and code is totally different.
View 1 RepliesI am wondering which code would apply to a refresh button in a datagridview form.
View 1 RepliesI use the Add new button (of the Binding Navigator) to clear the text boxes for a new record, but then have a Update button on the form where I do an Insert query to SQL, which works because if I refresh the table in SQL the new row is there.However when I then use the Binding Navigator 'move previous' button I get an error saying "Column 'AllowOverbook' does not allow nulls. " - now this is a column that is defined in the database to have 'Allow Nulls' = False, but I do not display this field on my form because in this case it is not required.Instead I have it included on my Insert statement and just set it to '0'
Also when you look at the table every entry in the AllowOverbook column is '0' and there are no NULLS.
I have a basic data entry form using a binding navigator and a details form. I do the validation in the dataset on the columnchanged and tablenewrow events. These work, and I check the haserrors property before saving, however if the user gets an error, when they get back to the screen, the current item has moved. Ideally, I'd like to have it stay on the item with the error: Private Sub DSHW_FACILITYBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FACILITYBindingNavigatorSaveItem.Click
[Code]...
I am populating a winForm with invoicing information when the user selects the invoice number and clicks a button the information is displayed. How can i use the binding navigator with unbound data.?
Private Sub btnLookupOrder_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLookupOrder.Click
[Code]...
how to add a save feature to the Binding Navigator tool strip as it isn't a feature by default. I'm using VB Express Edition 2008.
View 1 RepliesI am using Visual Basic Express 2010.
I have programmatically set up a Datagrid and binding navigator etc., but I cannot get the movenext, movelast buttons to actually hook up to the Data on the Datagrid.
I have tried to set up an addhandler for the BindingNavigatorMoveLastcontrol, and although I can get the BindingNavigatorMoveLastcontrol to display my messagebox
WHICH IT DISPLAYS TWICE FOR SOME REASON I cannot get it to actually move around the Dataset, or any of the other navigation properties for that matter.
Wednesday61
Imports System.Data.SqlClient
Imports System.Windows.Forms
Imports System.Drawing
[Code].....
I've got a datable on my form, it loads the data from the database and displays it just fine but when i add data to it it doesn't save it to the database... I don't know why but the save button on the data navigator is disabled by default but even when i enable it, enter data and click it, it doesn't save the data. (i dont think its the button i just thought it's worth mentioning that the save button is disabled by default when you drag a data table onto a form)
View 13 RepliesI'm trying to code the delete button in my binding navigator and I keep running into errors. This is what I have:Dim msg As String = "Are you sure you want to delete the current record? " If MessageBox.Show(msg, "Confirm Delete", _ MessageBoxButtons.YesNo) = DialogResult.Yes Then _CustomersBindingSource.Remove(DataGridView1.CurrentRow)
End If
Me.TableAdapterManager.UpdateAll(Me.DatabaseDataSet1)
Even when I change it to _CustomersBindingSource.CancelEdit and I debug it, the Delete button in the binding navigator looks like it set to enabled = false, but in the properites it's set to true.Even if I add enabled = true at the top
