VS 2005 - Bindingsource Removecurrent - Difference Delete Or Adding Button
Apr 27, 2011
If you have a form with two datagridviews that were dragged on to the form from a datasource that have a parent/child relationship with foreign key constraints. Is there any difference between using the binding navigator Delete button or adding a button to the form and in the Click event put "somebindingsource. RemoveCurrent". Basically what I'm trying to find out is if clicking the navigator Delete button causes "Removecurrent" or does it do something else or something additional.
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Nov 7, 2011
I am trying to delete data using bindingsource.removecurrent() ,but using the following code, it's just not working.
CODE:
bsmail is filtered in another form, perhaps the problem lays there? i don't know if the code to remove the current data is correct.
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Dec 1, 2010
I'm trying to flag a record as deleted by clicking the delete button on my bindingnavigatordeleteitem button.
The code is:
Private Sub BindingNavigatorDeleteItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BindingNavigatorDeleteItem.Click
code:.........
The error is "Deleted row information cannot be accessed through the row"
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Apr 13, 2006
All fields from my class objects are added to the columns collection of DataGridViews, when the forms or custom controls that contain them are viewed within the VS 2005 designer. I haven't been able to figure out how to stop the designer from auto-adding all of the fields found within the bindingsource object.
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Oct 21, 2009
The particular control I'm trying to figure out is a UserControl. When I design it as a separate DLL, add it to the Toolbox, then drag it onto the form, it shows up. But when I declare the instance in Form_Load & add it to the Forms Controls, it doesn't show up. (Note that I'm dealing with two different UserControls here as what I don't really want to do is create it as a DLL. It's specific to this project & that's where I want it-in this project. I suppose I could create it as a separate project in this solution, but again-that's not what I want to do. I can add a UserControl to this project, but I can't seem to *use* it. Frustrating.)
Dim X As New Class3
X.Size = New System.Drawing.Size(96, 74)
X.Location = New System.Drawing.Point(5, 5)
Me.Controls.Add(X)
Me.Refresh()
Class3 inherits System.Windows.forms.UserControl, and contains a label.OK, found that I can make the UserControl appear by setting the BackColor (X.BackColor=). Doesn't seem like I should need to do that as it's set in Class3, but apparently when I add it to the form it picks up the form's backcolor-which might be the way UserControls work.
But, it still doesn't show the label that's on the UserControl-just a block of color where I placed the UserControl.And now, I might have solved this problem only to raise another. I finally noticed that although Class3 had an InitializeComponent sub it lacked a Sub New-so it never called the InitializeComponent sub.
I added a Sub New that does nothing except call InitializeComponent & now I'm getting the whole thing. I guess now the question is why the Sub New is required for Class3 but not for the DLL? (Or maybe it was created automatically for the DLL but not for Class3? I'll check the hidden code in the DLL project to see if it was created or not.)
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Mar 10, 2012
I have used this form to add new records on my database(ms access) in my database I have a column name 'ID' which is my primary key 'ID' is set as auto number. Now I am having a trouble on creating my update and delete button it's always saying "cannot be delete/update"
Here's my code on add, update and delete
Public Sub SaveRecord()
Try
Dim dbConn As OleDbConnection
Dim dbInsert As New OleDbCommand
Dim str1, str2, str3, str4, str5, str6, str7, str8, str9 As String
[Code] .....
Note my add is working perfectly fine. I just can find the error on my delete and update. Also I have used this to view it to my datagrid I don't know if its the right thing but it's working fine too.
'declared dbpath globally'
Dim dbPath As String = "Provider=Microsoft.Jet.Oledb.4.0; Data Source=../VG.mdb;Persist Security Info=False"
[Code] .....
Another thing is how to code each textbox and combobox to bind it to my records so that when I click on the datagridview each column will be distributed on each respective textbox.
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Jan 28, 2009
Dim cnn As OleDbConnection = New OleDbConnection
cnn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source= C:Documents and SettingsJennieDesktopCWK 1Game Shop.mdb"
cnn.Open()
[code]....
I am trying to delete a row from the datagrid when a button is clicked, however the line which I have BOLDED shows an error which is its not a member of the system.windows forms. Any ideas on what I should change it too? I am aware that that line of code is for a datagridview not a Datagrid which is what im using.
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Nov 30, 2010
Is it possible to delete all records from a bindingsource without using a loop? My binding source is a dataset table
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Dec 23, 2009
I have one simple questionWhat's the code for deleting one row from Database using BindingSource and DataSet? Just like from BindingNavigator.
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Dec 21, 2010
I have 22 images and I am trying to add them into an array and then assign them randomly to a button so when the button is pressed it will change to the assigned image. Also is it possible to randomize the array.
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Jul 16, 2009
See the below
Imports System.Data
Imports System.Data.OleDb
Public Class Form1
[Code]....
the last value inserted into the access database will be add to the drop down list of their corressponding combo box.
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Aug 7, 2010
I have a combobox and a group of textboxes on a windows form. I'm using a binding source to bind a dataset from an access database to these controls. To add a new row, I'm adding a row to the dataset. This adds to the database fine, but on the screen, it adds the new entry to my form, but it also overwrites the textboxes of what ever item was currently selected with the values of the new row I just added. If I quit and re-enter the program everything is correct.[code]...
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Aug 23, 2009
I believe there wont be any diff if user clicks the button on the form and the click event is fired OR if we call the button click event / function in the code. Because in one my project, this does make diff. If I click the button on the form, the App works great but same button if I click it thru the form code, the whole process crashes. This happens in Vista / VB.net.
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Jul 16, 2009
I 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.
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Jun 3, 2009
my program has been finished a year ago and then I didn't use it. but today I need to use it for some reason. I find it cannot be update when pressing the save button on BindingNavigator bar, here is the message
System.InvalidOperationException
When passing the modified data to DataRow collection，The update need a valid UpdateCommand.
[code].....
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Aug 10, 2010
I am trying to bind my combobox selected value something like:
Me.combobox1.SelectedValue = Me.BindingSource8.Item("ColumnName")
The column has a numerical value
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Nov 20, 2010
I am attemting to read a .txt file database into an xml file and then read the xml file into a DataSet and then bind the dataset to bindingSources and then subsequently bind comboboxes and text boxes to the binding source. I am struggling with how to create bindingsources with different filters. I am not sure if I am even going about this the right way. Perhaps there is a better way. I already have the program working using traditional OLEDB and creating different datatables but I wanted to be able to add and edit my datafile so I decided to convert it to a xml file.
HTML
If Me.OpenFileDialog2.ShowDialog() = Windows.Forms.DialogResult.OK Then
With OpenFileDialog2
folderName = .FileName.Substring(0, .FileName.LastIndexOf(""))
'fill dataset with selected xml table
[Code] .....
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Oct 24, 2009
I am trying to merge two filters but it aint happening:
ClientProfileBindingSource.Filter = "ClientType = '" & "Seeker" & "'" And "ClientType = '" & "Both" & "'"
error:
Quote:
Conversion from string "ClientType = 'Seeker'" to type 'Long' is not valid.
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Dec 26, 2009
how can i navigate the datatable with the help of a BindingSource?
here lies the
con = New OleDbConnection("Provider=Microsoft.Jet.Oledb.4.0;Data Source=db1.mdb")
con.Open()
cmd = New OleDbCommand("Select * from Table1", con)
[Code].....
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Jun 28, 2006
This is probably common question and I searched forums but didnfind the answer.I have two DateTimePickers on form and I want to use BindingSource.Filter to filter between two dates.I have tried this but it doesn work:
VB
BindingSource1.Filter = "FromDate >= " & DateTimePicker1.Value & " AND ToDate <= " & DateTimePicker2.Value
[code].....
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Jun 21, 2010
i wrote a software which would work perfectly fine on vb.net with connection string: [code] but if i try and run it on a pc with sql server 2005 installed it fails to run what changes do i need to do to make it run
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Jun 19, 2009
I am writing an application to gather, display and export system information for use with a Support Dept.Is there a performance difference between using WMI and My.Computer.X.X in VS 2005? Is one method better practice than the other?There are more lines with WMI, but am willing to write more if it's considered good practice over using My.Computer.X.X.
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Feb 24, 2009
I would like to make data binding using BindingSource whereby whenever either Next Button or Previous Button is click the BindingSource position will change to display the data at that position.
I know that if I want use a loop of the BindingSource I could do somthing like vb code below but I am not sure if of binding it seperately. I usually bind it through the properties but this I cant because is an image column which I want to bind and I have to us memorystream to display it to reduce memory usage, so I asign it to arrPic so that whenever the BindingSource position changes the image column will be asign to arrPic.
Dim MyRow as DataRowView
For Each MyRow In dtView
'only use non-repeating names
CurrentPicture = Trim(CStr((MyRow("FileName"))))
If CurrentPicture <> LastName Then
[Code]...
The BindingSource filter the picturenames and add to a listbox. One name may contain about 4 or more pictures so when you select a name from the listbox the bindingsource populate only the pictures have the selected name and you can navigate forward and backwards.All what I want is how to bind a column to a textbox or picturebox by code. I know if it is a dataset I can declare a datarow and bind anything to the columns.
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Mar 7, 2011
I'm having problems with bindingsource. I have a proc used to update a datagridview from a bindingsource. When I run the debugger, the datatable appears to be populated rowcount is 2206 and 7 columns. When the bindingsource.datasource is set, everything looks good. The filter appears to be ok, however, when the datagridview is set to the bindingsource, it's not working. I have it in a try/catch block and an error isn't being raised. When I reference the columns to size them, an error is raised. Below is the snippet of
[Code]...
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Sep 14, 2011
I have a form with a parent bindingsource showing details and a child bindingsource showing the multiple line items in a dgv. This relationship has the properties set to enforce the constraints and cascade the updates and deletes. When I add a new parent record there is a function for inserting default line items into the child. I have this code fr deleting a record,
[Code]...
edit: jmc posted a nice solution to this problem in the code bank just recently but I could not get it to work in 2005, this line, "AddHandler Me.LOTBindingSource.Adapter.RowUpdated, AddressOf parentAdapter_RowUpdated" throws an error. It say "Adapter is not a member of the System.windows.forms.bindingsource.
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Apr 15, 2011
Lets say I have a form with several Textboxes that are all bound to "bindingsource1". I'd like to be able to check the field data type each textbox is bound to. Something like this,
Dim ctl As Control
For Each ctl In frm.Controls
If ctl.GetType.IsAssignableFrom(GetType(TextBox)) Then
[Code]....
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Jan 21, 2010
When I drag an item from my data sources area onto my form, VS automatically creates a tableadpater, bindingsource, and bindingnavigator for me. This is great. The name it picks "xxxxxtableadapter", "xxxxxbindingsource", and "xxxxxbindingnavigator", where "xxxxx" is the tablename, is in my opinion a bit wordy.
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Feb 9, 2011
i have my final project viva, i developed my project in Visual Studio 2005 (vb.net) at front end and SQL Server 2005 Standard Edition at back end.so pleaseeeee tell me some most distinguish features of vb.net which i could tell the examine that why did i use this.and also tell me that what are most distinguish differnences between vb6 and vb.net..
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Apr 9, 2010
i developed my project in Visual Studio 2005 (vb.net) at front end and SQL Server 2005 Standard Edition at back end. tell me some most distinguish features of vb.net which i could tell the examine that why did i use this.and also tell me that what are most distinguish differnences between vb6 and vb.net.give me such valuable information which makes my arguments more authentic.....
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Aug 3, 2010
I've been using VS 2005 for quite some time and will be jumping to VS 2010 shortly. Are there any gotchas to be concerned about in making that transition? Is this a side by side install?
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