VS 2005 - XML DataSet BindingSource With Different Filters
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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May 2, 2012
is there any possiblities like this select two conditions in one dataview like
Childds.Tables("ColumnList").DefaultView.RowFilter = customername='hello'
dv = Childds.Tables("ColumnList").DefaultView()
it has given correct answer but
Childds.Tables("ColumnList").DefaultView.RowFilter = customername='hello' or customername='hai'
dv = Childds.Tables("ColumnList").DefaultView()
In this case it takes only first one and ignore the second or condition
how to write the rowfilter to select when the customers are multiple
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Sep 21, 2011
I'm designing a form wherein a datagrid is being filtered from numerous controls.
The issue im having is each filter overrides the previous one. Just wondering the best way to approach this problem.
Heres a snippet of my
Private Sub MakeIDComboBox_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MakeIDComboBox.SelectedIndexChanged
Sheet1BindingSource.Filter = "Make like '" & MakeIDComboBox.SelectedItem & "'"
End Sub
[Code]......
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Feb 3, 2009
What is the difference, and why don't any of these methods work?
[code]...
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Feb 24, 2011
I have the code below and would like to sharpen the image in the increments of 10% starting at 0% to 100%. How do i apply separate filters so that when i move the track bar, i am able to see the effects take place step by step?
Private Sub TrackBar1_Scroll(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TrackBar1.Scroll
Dim sharpness As Single = CSng(TrackBar1.Value / 100) ' no change in brightness
[code].....
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Mar 2, 2011
I would like to sharpen an image using pure vb with no filters or unsharp method.Then use a track bar to slide through so that the image in the second picture box shows the effects of sharpening, up and down. I have the code below but it gives me errors:
Private Sub Sharpen()
Dim fpixel, secpixel As Color
Dim NewImg As Bitmap = New Bitmap(PicBefore.Image)
[code]....
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Sep 8, 2011
Scenario: FormA has a DataGridView with a DataTable as it's DataSource. The DefaultView of the DataTable is set to a particular filter, say "UnitFreight < 2.00". The user selects multiple rows then selects a context menu item to open up form2. Form2 does a bunch of stuff and in this example it will change the UnitFreight value in the selected rows on form1 to say 2.27. It also raises an event in form1 to adjust attribute cells such as UnitPrice.
The issue is that doing the above example puts the selected rows out of the range of the applied filter and I believe this is the issue because I end up getting a "Column named UnitPrice cannot be found" error. This is happening during the update of those attribute columns. I'm guessing the row has been filtered out so there's no column to be found. If I do the update without the filter applied it works fine. So my question is, what's the best approach to updating the data in this situation. I've started converting the updates to work against the DataTable directly instead of the DataGridView.
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Dec 21, 2011
i have a strongly typed DataSet that haves these two tables:
AUTHORS
ID
Name
and
[code]....
Somewhere my system haves a function that returns a DataSet with the books of a certain subject and all the Authors that wrote such books.I need to show the book's attributes in some textboxes inside a Form. I use a BindingSource to display the ISBN, Name and Subject of the books in a textbox, yet I don't know how to display the author name of the book I am currently viewing in a TextBox, taking into account I already fetched the Author into the DataSet.
Its pretty much the Child/Parent display problem somewhere discussed in the codebank, but kinda backwards, the thing is that I;m navigating through the CHILD records here, not the parent, yet i have all the data needed in my Dataset.
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Oct 22, 2009
I am creating an application using an Access database and the DataSet, BindingSource and TableAdapter to connect to my database, but I need to able to switch between different databases with the same tables, but new name and path. So I will need to set a new
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Jun 5, 2011
use dataset , bindingsource and table adabter to filter or serch on database and update the datagridview
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'Database3DataSet1.Table3' table. You can
[code].....
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Apr 25, 2012
I've got a databound query in my application which is querying the "Customers" table in our database.I've created this directly from the ComboBox's datasource creator in the Design view.Various bits of code created in the designer include:
Me.CustomerBindingSource.DataSource = Me.CustomerDataSet
Me.ComboBox_Customers.DataSource = Me.CustomerBindingSource
What I've done in the first stage of developing this feature is to show my users a ComboBox showing a specific subset of the customer list by applying a filter to the BindingSource.
Me.CustomerBindingSource.Filter = "someColumn = 3"
What I want to do on a second pass is to allow the users to type a specific bit of information into a textbox and check whether it appears in Me.CustomerDataSet like so:
Dim x As IEnumerable(Of CustomerDataSet.customerRow) = From cust In Me.CustomerDataSet.customer Where cust.custno.Trim = "test"
If x.Count <> 0 Then
At this point, I have a customerRow object. I want to check whether this customerRow object appears in the list presented to users in Me.ComboBox_Customers via the filtered Me.CustomerBindingSource. Me.CustomerBindingSource does not (directly) contain customerRow objects, it contains Object objects.How do I find out whether Me.CustomerBindingSource contains the customerRow object at whatever lower level?Also Once I've determined that Me.CustomerBindingSource contains the item, how do I select that entry in the ComboBox?
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Apr 29, 2011
For a WinForms VB.Net application, I use the Bindingsource's filtering capacity to filter data, which is seen in a DataGridview. The BindingSource is from a DataSet, created using the Designer, and the data comes from a Access DB, using JetEngine and .Net 3.5. So basically:
Datagridview.Datasource = xxBindingSource
xxBindingsource.Filter = "[extended filter string with multiple columns]"
This filtering works fine, however, now I included some extra columns in the DataGridView, which I'd like to filter on, too. Of course, when I feed the manually added columns to the Filter of the BindingSource, this doesn't work out.I've done some research, and was not able to find any way to use the BindingSource's filtering syntax on the DataGridview. I'd like to use this syntax though, as I designed quite a nice UserControl and class around it, to provide smooth, fast and simple filtering capabilities.
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Nov 22, 2009
I have a datagridview bounded to a bindingsource (that is, in turn, bounded to a dataset that is the data origin of the project) and a bindingnavigator to a Access table, all of this done with the visual designer of Visual Basic .net 2005. I want to print in a crystal report the rows shown in the datagridview after filtered using the .filter property of the datagridview. But, to achieve this, I need to get the filtered rows in a dataset, and I havenīt got this in any way. If I pass to the crystal report the main dataset origin of the project, it will print all the rows, not only the filtered rows. I would have figured out that there would be a .getfilteredrows or something like that in the bindingsource object, but there isnīt. I managed to get this manually, through a loop, but I canīt believe it is the solution experts use.
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May 16, 2011
[Code] Somewhere my system haves a function that returns a DataSet with the books of a certain subject and all the Authors that wrote such books. I need to show the book's attributes in some textboxes inside a Form. I use a BindingSource to display the ISBN, Name and Subject of the books in a textbox, yet I don't know how to display the author name of the book I am currently viewing in a TextBox, taking into account I already fetched the Author into the DataSet.
Its pretty much the Child/Parent display problem somewhere discussed in the codebank, but kinda backwards, the thing is that I;m navigating through the CHILD records here, not the parent, yet i have all the data needed in my Dataset.
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Dec 9, 2009
Am new to VB, can anyone tell me very simple how to share the MAIN Bindingsource with an detail form where i want to edit 1 record from the main datasource?
andreg
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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 collectionïžThe 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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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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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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Dec 28, 2010
If TableAdapter.Fill(DataSet, "Customer") populates all of the boxes: How can I "unpopulate" of all the boxes and break any open ties to the dataset/tableadapter/bindingsource/etc.?
For example something along the lines of:
CustomerBindingSource.CancelEdit()
BFSDataSet.Customer.Clear()
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Nov 25, 2009
I want to access data using both the datasets.
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Try
[Code]....
In my code i have dataset name ds and table named Info1,when i write ds after that how tablename is coming,its not possible? How to do that ?
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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 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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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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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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Oct 24, 2011
I have a dgv and in it the user can move around column's or resize columns or filter columns. Now there's an issue when the user try's to move the column's around because you have to click on the column and drag it over. But once you click on it, it sorts that column in ascending (or descending) order.
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May 2, 2012
I have a DataGridView to display the content of my database. I Queried the required fields to a Dataset and Used this as DataSource for the Datagridview. Now i want to add dropdown filters to each column as we see in Excel Sheets. Is it possible and how.
Any how i require dropdown for the columns i also tried from below link to set the BindingSource.Filter = value but i did not find this property for Datagridview[URL]..
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