IDE :: Data Source Disappeared - Recreate My Data Source From The Entry That Is In App?
Feb 10, 2012
I refreshed my data sources to include additional items from the SQL Server databases and it appears that my entire data source from my VB.NET project disappeared.I am using Entity Framework. I may have clicked on something wrong, not quite sure. Unfortunately I can't recreate the Data Source without creating a new Entity and Data Model.I can delete the entry in the App.Config file and recreated it, however things aren't quite right.Is there a way that I can recreate my Data Source from the entry that is in my App.Config file...since that appears to have remained intact.BTW, I can go to my Data Model and successfully refresh from there, however my project isn't connecting to the database so I have quite a number of errors until I can get reconnected.
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Oct 11, 2010
I have an Access database and I want to view on a datagridview specific rows. For that I used the following :
CasesBindingSource.Filter =
"OfferDate Between #1/1/1997# And #12/31/1997#"
Cases is the table, OfferDate a field of the table wich is DateTime type.
When I use Between operator I get the following error :The expression contains unsupported operator 'Between'.
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Feb 22, 2011
Modifying data with the ListView's EditItemTemplate by programmatically settings its DataSource property and calling its DataBind method. I don't have option to use data source control for ListView. All ListViews are bound with data from code-behind. So, I have to handle the Edit/Update mode of ListView manually. [Code]
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Jul 7, 2011
I'm trying to connect a VB application (2010) to an MS Access DB by adding a data source from the data menu but I receive this error message "The connection you selected uses a local data file that is not in the current project.Would you like to copy the file to your project and modify the connection ?
If you copy the data file to your project, it will be copied to the project's output directory each time you run the application" and the options are (yes , No , Help)
If I choose Yes I will not be able to make the application 'device independent ' since it will not be copied under the bin , and if I choose No , changes won't be applied to the DB
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Apr 23, 2010
how to use the VS 2010 IDE tools in a way the Microsofties didn't specifically intend. But since this is something I immediately tried without success.
I have defined a .NET 4.0 WPF Application project with a simple class that looks like this:
Public Class Class1
Public Property One As String = "OneString"
Public Property Two As String = "TwoString"
[Code]....
The expected result was that "OneString" would appear next to "One" and "TwoString" next to "Two" in the running window.
The question is: Why didn't this work? What will work instead? If I put bindings in a DataTemplate, it works. Blend, with its sample data stuff, implied that this should work, but it doesn't.
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May 10, 2010
I have 5 combo boxes that need to show the same list of items that come from a single dataset table. I have managed to bind the datatable to the combo boxes no problem at all.. but when I run the application and select an item from one of the combo boxes all the others change to the item I selected. After some research I believe that this problem is something to do with using the one datasource so I have tried assigning the dataset datatable to 2 different variables and used them as datasources for 2 of the comboboxes but the same still happens.
A work around to this I can see is to call the same methods and SQL select statements 5 times over to get individual datasources for each combo box but this doing that sounds crazy to me. how I can get around this easily? Code snippet below shows 2 combox boxes and their datasources. I'm using VS2005, .Net 2
ComboBox1.DropDownStyle = ComboBoxStyle.DropDownList
ComboBox1.DataSource = AllergyListDataSet.Tables("ListOfAllergies")
ComboBox1.DisplayMember = "Condition"
[Code]....
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Mar 21, 2010
can data reader be used as a data source for a grid control?
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Nov 4, 2009
I have a combo box with a data source. This box shows one column of a table and allows me to select one item.Next, I have an ordinary text LABEL that I need to put text from another column of the item selected above.I tried to set the data binding field of the label, but this grabs only the first row or data and shows the selected column. That is nice, but I can not figure out how to update the selected selected ROW when the combo box item is changed.In this case the combo box lists a bunch of inventory parts. When I select a specific part, I need the change the text in a label to show the manufacturer. (like a sub-form). This same behavior will be used in several other places, but the relationships can cascade.
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Jun 2, 2010
i'm got this sql query code in dataset designer
SELECT pkt.fldPackageID, pkt.fldPSID, pkt.fldQuantity, pkt.fldQuantityUsed, pkt.fldRetail, pkt.fldPK, ps.fldName
FROM tblPaketRow AS pkt INNER JOIN
tblProdukDanService AS ps ON ps.fldID = pkt.fldPSID
WHERE (pkt.fldPSID = @param)
I'm trying to display the results in datagridview,i drag from the data source in vs 2008..I can't figure out to do that.I use this code to set the @param on form_load event.
Me.TblPaketRowTableAdapter.JoinTable(SalonDataSet.tblPaketRow, modCommon.s)
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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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Jun 1, 2011
I have been trying for days now how to create a process to the user to easily create a connection to any installed data types they have installed. I have found an example right inside vb2008. I never use this because I code my own connections, but this would be real nice if I could include it or duplicate it.
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Sep 25, 2009
I am creating a database for Employees. In that I have some issues. I am trying to bind my data using data source. In the list box properties I set
lstemp.Datasource = Employeedatabase
lstemp.Displaymember = "EmplyeeName"
lstemp.Valuemember = "EmplyeeId"
I want to get my employee Id for displaying data in text boxes. How can get the data of the highlighted employee name in the list box to text boxes
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Sep 25, 2009
I am creating a database for Employees. In that I have some issues.I am trying to bind my data using data source. In the list box properties I set
lstemp.Datasource = Employeedatabase
lstemp.Displaymember = "EmplyeeName"
lstemp.Valuemember = "EmplyeeId"
I want to get my employee Id for displaying data in text boxes. How can get the data of the highlighted employee name in the list box to text boxes
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Jun 2, 2011
I am doing project in 2010...I am trying to add new data source.
[code]...
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Mar 18, 2012
Iam try addingnew data source by using the Wizard but it gives me massage error (unexpected error has occured)
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May 9, 2011
I'm creating a gridview using an objectdatasource and it works fine when pulling all records. But when I want to use the selectCountMethod the grid shows no values. I Step through the code and my getInvoices (gets the requested data) returns data and the getInvoicesCount (gets the total record count). But then when I go through the rowdatabound of the gridview there's nothing in there and no data displays. Here is my code to set the objectdatasource. Any reasons why it wouldn't work or something special that needs to be done for getting the selectcount to work? [code]
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Apr 28, 2009
Trying to add a new data source, I create a new connection string and attach an Access DB to it, pick which tables I want, and it either gives me an error saying it can't create the data source or it creates it and puts this garbage in the data set designer:[code]
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Jun 7, 2011
I used to use listboxes, but now I use listviews. I can't use data source anymore, and I am looking for an alternative.
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Dec 19, 2007
am using visual studio 2008 professional edition and MS SQL Sever express 2005 SP2.i clicked Data then Add New Data Source choosed Database then click Nextwhen i clicked on New Connection the Data source configuration wizard disappears.
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Jul 9, 2009
I'm trying to connect to a data source i followed these steps: From Data menue ==> 'Add new Data Source'. Select 'Database'. Press the 'New Connection' button. but the wizard screen disappear without giving any messages.
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Feb 5, 2010
Data Source=YOUR_SQL_SERVER
;
I dont understand what i insert in YOUR_SQL_SERVER.
[code].....
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Jun 5, 2011
Why when I drag the datagridview in my designer, they don't give me a selection on which data source?
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Sep 20, 2011
I have added a Datasoruce to my current project and the following has been added to my App.config file: [code] How can I now query and update this datasource?I have the following query:Dim sqlstr As String = "INSERT INTO Accounts(Username,Password)VALUES('" & Trim(Account(0)) & "','" & Trim(Account(1)) & "')"But am not too sure how to actually run the query (New to VB, used to PHP and a single database connection file!)
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Feb 11, 2010
I have purchased and installed the EBook "Visual Basic 2008 Step By Step". The package comes with a companion CD on which are practice projects that correspond to the book. I have installed Visual Basic Express 2008 and also installed the "Practice Files" exactly as required. When I enter the VB 2008 Express IDE and attempt to load the project or solution files, the program loads and I get no error. The problem is that I get no data when this happens. The "Data Source" box displays a message that reads, "Your project currently has no data sources associated with it. Add a new data source, then data-bind items by dragging from this window onto forms or existing controls." The files did load properly for me once, but have not ever since. Does anybody have any clue as to what needs to be done here?
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Jun 6, 2009
when I tried to add a new data source using the wizard. But after connection has been tested succesfully ,I get this error message:could not load type 'microsoft.visualstudio.data design.sync designer.sync facade.sync manager from assembly 'Microsoft.VisualStudio.DataDesign.SyncDesigner.DslPackage,
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Aug 9, 2009
I'm making a program that permits a user to connect to a database. I'm using the "data source" section of visual studio. How can I allow the user to specify the path of the database?
I can forsee a problem: the user could specify a database that doesn't have the same schema than the one used in the visual studio environment. But it is not a concern to me to only prompt an error.
Any idea how can I let teh user choses its DB? Can I edit the connection string in the datasource maybe?
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Dec 29, 2011
Most of the VB.net windows application I have created so far have been working off a local server. To add a data source I click Add New Data Source and then database and then connect to the database by linking through an ODBC driver. This works neatly and places data sets that I can then pull onto forms in various formats, DGV's textbox, Combobox etc.
The application I am trying to build now links to a hosted server on the internet. For security reasons I cannot create an ODBC that connects to the database. I can use a ADO connection string and this is fine for various tasks and I know I can populate a DGV using this connection. However, it is much quicker once I have dataset that I can repeatley call on.
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Sep 11, 2011
In our class in Visual Basic, we are required to turn in a payroll system with time monitoring. And I have prepared already the GUI interface of my system. My question is what kind of collection of data should I use, considering the employee population of 30 (that's what our instructor have told us.)Should I use:
a. Arrays to store them like every field (employee number, employee last name, etc.) has its own array.
b. Sequential files for me to store them in a text file (and if in the text file, could I still retrieve the records inside that text file.)
c. A Database.
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Feb 22, 2011
I have a data table (mdf). I want my text box to show suggestions from a column of that table.
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Mar 8, 2008
I am linking a report within asp reportviewer to a drop down list, but keep on getting an error 'A data source instance has not been supplied for the data source 'DataSet11_NewSelectCommand'. I cannot see anything wrong in the code though,
Imports System.IO
Imports System.Web
Imports System
[Code].....
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