Sync 2 Binding Sources?
Mar 11, 2009
How can I sync 2 binding sources, both binding sources contain the same data(contactsbindingsource)I have 2 forms:1 form is a list of contact information the other is a search form.I have a linq querie in the search form that returns contact names to a datagridview, but I want to be able to double click on selected cell and have the relevant data appear on my first form.Also my first form has FK relationship to another form that contains company information, could this have something to do with it?
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Dec 3, 2009
I can loop through comboboxes likes:
for i=0 to 5
directcast(me.controls ("combobox" & i.tostring), combobox).items.add ("Hello")
next
However, if I do the same thing with binding sources:
for i=0 to 5
directcast(me.controls ("bindingsource" & i.tostring), bindingsource).movenext()
next
It errors me saying that you can't cast binding source as a control or something (they aren't of the same type). How do I loop through binding sources?
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Jan 19, 2010
In a manufacturing environment I'm using an Access database to store properties of manufactured parts. I've queried a table to fill a datatable, which then populates the attached form.
[Code]...
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Mar 18, 2010
I have 2 BindingSources that interact with controls on my application. Is there anyway to save them to a file and also load them?
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Feb 10, 2010
I have a winforms app access a database with 6 tables. Out of 6, I am showing 3 tables on three different tabs on my Form. However, I want to do it using a single binding navigator that will use / change the respective binding source dynamically, depending on the tab that is activated by the user. I have separate binding source for each of the three tables.
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Oct 8, 2010
First: I have a numericUpDown and a class that are bound.
Me.percent.DataBindings.Clear()Me.percent.DataBindings.Add("Value", options, "percent")When I change the numericUpDown the underlying class seems not to update. I have to click outside the numericUpDown to force validation and force syncing. This is very counterintuitive and will cause problems. How can I make sure the underlying data object gets the new value on valuechange rather than validate?
Second: After I change the numericUpDown I have an option that serializes the underlying data in an xml file. The underlying XML file does not always get the right data. To figure out what is happening I added a button that outputs the values of the underlying data object and it is always getting updated. In other words...the control and the object values always agree. The serialize
[Code]...
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Aug 14, 2009
I have a bit of code that reaches out and grabs a series of rows from SQL Server DB. I perform an inner join to get some related table data. In the process I get returned the user id of the creator of the data. I then want to pass this into a query to get back a full name. I am having no luck figuring out how to do just that. If I use the data visualizer I can see the name I am after, I cannot figure out the call to extract it
Bindingsource1.DataSource = GetData("Select * From PURCHASE_ORDERS WHERE PURCHASE_ORDER_NUMBER =" & REQ_NUM.Text)
.DataSource = Bindingsource1
[code].....
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Oct 29, 2011
is there any way that i could link/bind multiple binding source to only one binding source navigator?
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Oct 18, 2010
binding navigators, datagrid view, binding source are all sql database parts.Will these parts still work if you havent got sql on you pc and your not using an database file (.log and .mfd) and your not coding to them, im using MS Jet/Oledb to code to Excel.What not to put on an Employee evaluation: This employee has hit rock bottom and shows signs of starting to dig.
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Jul 2, 2011
Binding Master Table to TextBox and DateTimePicker and Binding Details Tables to Datagridview then Add / Update / Delete in both
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Aug 17, 2010
The company I work for has gone to great expence in getting me Express to code in.Tring to use the datagridview and attaching it to a source has me stumped.I can start the wizard, but it only shows Access and SQL express file locations.I need the connection to get to the actual SQL 2008 database.
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Feb 17, 2010
Ive already created a connection to my database and by using databinding can retrieve data from the database and display it in a textbox. However i want to keep updating the same textbox at certain times, such as when a button if clicked, with different data but once i try to overwrite the text in the textbox i get this error message. [code]...
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Mar 10, 2011
I am a novice to programming and am working my way through one of the more popular books on VB in VS 2008 Pro. I am havng a probelm setting up to add dataset controls to a form. I can establish a connection to the data base (a dataset is created and I can preview the data), but the table adapters and binding sources are not being automatically added to the form by the IDE. This seems to be verified by the fact that I cannot drag and drop controls from the data source window to the form.
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Sep 7, 2010
for some reason my "data sources" window is empty when I open my project.Worked last night ,but this morning it's blank.Reads:Your project currently has no data sources associated with it.Add a new data source ,then add a new data source by dragging from this window onto forms or exsisting controls. What happened and how do I get this back to how it was.I can no longer open any project forms.
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Jan 5, 2011
As a college project, I'm making a basic web browser, which contains all of the basic functions such as copy, cut, paste, delete, load a webpage, save as, print, etc. At the moment, I can copy from the HTML document, but I can't actually copy from the URL input bar. How do I do it so that when I click "Copy" it will copy the text to the clipboard, no matter what field has focus. So for example, if text in the URL bar has been selected, and the URL bar has focus, then copy that text to the clipboard; but if something in the HTML document has been selected, then copy that.At the moment, I'm using this to copy, cut, paste, etc. from the HTML document:
BrowserWindow.Document.ExecCommand("Copy", False, Clipboard)
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Sep 16, 2009
where can i find data sources tab?
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Sep 15, 2011
Currently, I am trying to make a table, which retrieves failed products and passed products from an Entity with LINQ.
Lets assume I've done that, but have 2 lists, A regular List(Of String), and a SortedDictionary(Of String, int32) (To hold the product, and the number of times the testpoint has failed).
Now, when I want to output them to ListView, in a Webform, how can I make it, so that List(Of String), will be output on the listview, and the SortedDictionary, be output after the List(Of String)?
EDIT: Although I could just add the SortedDictionary values to the end of the List aswell, but how would I go around doing so? Because I will create a listview with 2 columns, one which holds the descriptive text, and then a List(Of String) value. And the SortedDictionary would follow, requiring two columns.
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Jun 13, 2012
It's been a long while since I've done any VB.Net coding and need to bind some data to a form. I have multiple tables that share some common primary/foreign keys and need to easily be able to update them.
For example, I have a table with an ObjectID, TypeID, AreaID, and several other fields. When doing my layout, I need the TypeID (found only in the main table) to be a distinct value in a comboBox, and in the ComboBox which contains the Area to be the Area Description (from the main table tied to the Area table via the Area ID).
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Jun 25, 2010
I designed a form from dragging across tables from data sources. All in all, bindingsources, tableadapters, dataset & tableadaptermanager, I have about 40 objects in the component designer tray.I found out that on a few occasions, Im not able to view the form design because of corruption or something. Sometimes, I even lost a bindingsource object or even a dataset object which caused errors. Has anyone come across such incidents? Is it advisable to have too many objects in the component designer tray?
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Feb 10, 2010
I'm developing a windows forms app, just upgraded it to use .NET 4.I'm VS 2010 ultimate RC.I'm running it in a virtual PC with 2GB of memory allocated to the virtual PC. I have windows 7 32 bit inside the VPC.I'm running win 7 64 bit with 4 GB at the host OS.Have a business DLL with about 300 of typed data tables.NOTE: The data tables are not in DataSets, we have generated the code for the DataTables using our own code generation mechanism.The data tables have been added as an data source (Of type Object)I'm running VS 2008 in my main OS. (Not a VPC)When running VS 2008 it takes 30 seconds to open the Data Sources window, the first time I open it.About 15 seconds subsequent times.Also when on a form and setting a binding expression it takes 10 seconds before the drop down list of available object to bind to comes up.
I have quite a powerful PC (5 experience score) relative to other developers at my company.This performance is a very serious productivity issue and makes developing windows forms apps very tedious.As a result of this VS 2008 is not very popular.The exact same slow performance seems to still exist with VS 2010. (Similar times)It could be the VPC but I don't have a machine to test this on and I don't want to put the RC on main main development machine.Did you expect a lot less than 300 data sources? 300 seems quite low to me for any real workd business application.
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Aug 12, 2009
Has anyone tried using controls from different sources into their application that uses winforms? Will these combination of controls work together?
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Apr 21, 2010
im using VS2008.I need to see both the Server Explorer window and the Data Sources Window.However I can see the Data Sources Window and dont know how to get it back.
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Jan 5, 2011
i am very new to vb.net and just started learning from the sources on Internet. i m trying to create a base64 coded password but i m stuck on one of its lines.I applied MD5 code to password then I want to apple base64 to password.
[Code]...
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Jun 1, 2009
Im currently making a program for a WM6 phone.. however this question applies VB.net programming in general.How do I use the datasources i have in my project... I currently have a datasource and a database file in my project.how do I connect to the datasource do i need to connect? when I deploy my application will my database file be carried over?
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Jul 2, 2010
I'm using this code to get the preview window
Dim iHeight As Integer = picCapture.Height
Dim iWidth As Integer = picCapture.Width
'
' Open Preview window in picturebox
[Code]....
As you can see, I have 2 sources. Would it be possible to not show the preview window, but instead loop through all the sources?
That would be in a timer, so like each 10 seconds a pictures is made from each source.
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Jul 27, 2010
In ASP.NET MVC, is it possible to fill the list of values of a Html.DropDownList from multiple data sources along with multiple manually entered values?Basically, I envision it being formated like the below using something along the lines of OPTGROUP:
**Group 1**
Manual Item 1
Manual Item 2
**Group 2**
[code]....
I've thought about using a view on the DB and getting the data from that, however, I've not really the faintest how to lay it out like above using helpers and to pass the data to it from multiple sources.
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May 25, 2010
I need to do in other platforms but seem to be having some issues with VB .net 2008.I have a datagridview bound to an SQL table that has several comboboxes.the rowSource (is it called that still?) for each of the comboBoxes are SQL lookup tables that I've created and based on the the users selection in ComboBox1, comboBox2's datasource may change.What I want is, if the user picks "Dental" from ComboBox1, I want comboBox2 to load Dental plans (Which I have working, no problem here I think).And if they pick "medical" in ComboBox1, comboBox2 loads medical plans in comboBox2 dropDown list, which, again that part seems to be working.If in the first row in the DGV,the user selects "Dental" for comboBox1 and then a Dental plan in ComboBox2,on the next row, if the user inputs "Medical" in ComboBox1, the first rows ComboBox2's "Dental plan" info disappears.
The medical plan can still be selected and displayed in row 2's comboBox2 (so the changing of the datasource is working)If you then click anywhere in the first row, ComboBox2's dental plan appears again but Row2's combobox2 now no longer displays the medical plan.Becuase whatever value you choose, no matter if it's a medical or dental plan, the info gets saved in the DGV bound table, shouldn't it display the saved information from the DGV's source and not the shifting comboBoxes datasources?
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Nov 26, 2011
I have a VB project with a large number of data sources in the data sources window. While the datasets behave well, the objects constantly expanded themselves to show all the properties. This means a lot of scrolling to find one.
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Jun 23, 2010
I've downloaded the ODBC driver and the MySQL driver and installed them on my system (Win XP SP3). However, the only data sources that are showing up when I try to add a data connection are Access & 2 SQL Server objects. Is there something else that needs to be setup in order for Visual Studio to allow additional data sources? I'm currently running VS 2010 Express.
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Feb 2, 2009
In Microsoft Visual Basic 2005 Express Edition Version 8.0.50727.42 (RTM.050727-4200) and Microsoft .NET Framework Version 2.0.50727.
Right Click Toolbox--Choose Item--.NET Framework Components--Check on OracleConnection and OracleDataAdapter--Ok
Now double click OracleDataAdapter1 in the toolbox.Data Adapter Configure Wizard appears. Click on New connection.Add Connection dialoge box appears.Click on change.Change Data Source dialogue box appears.Here i am getting only 2 items:
1.Microsoft Access Database File
2.Microsoft SQL Server Database File
And in Data Provider combo box; only ".Net Framework Data Provider for SQL Server".I am not able to configure my OracleDataAdapter1 control by choosing above method.Machine have Oracle 10G Client and Server well installed. I am able to use Dim oda As New System.Data.OracleClient.OracleDataAdapter() and it is working fine; but i wish to configure oracledataadapter by using above method. Moreover, it is possible for me to configure oracledataadapter in Web Developer 2005 by above metohd, but not in VB.NET.
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