How To Prompt For Password Databound (Teradata Data Source)
Jan 6, 2011
I'm sure there is a pretty simple answer to this, or at least I hope there is.I've created a data source (Teradata table) and opted not to save any username or password info when doing so with the "Add data source wizard" the reason for this is because the passwords change every 3 months. I have a form that is bound to the data source (teradata database) but when opened i receive the message "[Teradata Database] [8017] The UserId, Password or Account is invalid." because there is no username or password data saved. For example, i can open a linked table (the same table) via access and i'm prompted to enter a password (ODBC connection).
[Code]...
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Mar 2, 2011
I have an object databound to a WinForm. One property, BOLNumber is bound to a textbox on the form. When you change the value in the form, the underlying BOLNumber property is changed. But the property setter does some "formatting" to the value. I want to BOLNumber textbox to reflect the changes to the value made in the property setter immediately upon the textbox losing focus. I tried implementing the INotifyPropertyChanged interface, but I am either doing something wrong or misunderstanding something it would seem. How do I get the databound control to reflect the changes to the underlying data source?
Public Event PropertyChanged As PropertyChangedEventHandler _
Implements INotifyPropertyChanged.PropertyChanged
Public Property BOLNumber As String
[code]....
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Apr 21, 2010
I'm currently working on a CRM project in vb.net. I want the program to start with a prompt that asks for a password and if the user enters the correct password then the main form loads.Im having some problems wrapping my mind around this...
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Jun 1, 2012
I have a project where I added visually and successfully a datasource of MySql. I binded a datagridview with a table.
But, how do I change programatically the password, ip or user to connect with the MySql server? Because it can change at any time, so I can let the user change these values.
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Dec 24, 2009
I am not a developer but I like tweaking with system, I am recently trying to create an app that can reset admin password, but the problem is that I am not able to run the following command from standard account.
net user user_name * I know it is because of security reason but there must be some way so that software developer can tweak it, can someone guide me..[URl]..
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May 28, 2010
I have a textbox with its Text property bound to a datasource. How do I update the datasource in code?
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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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Feb 15, 2012
Is there a way to hide the password of your database inside the source code? [code] As you can see the password is exposed, increasing the risk for the database to be compromise. Is there anything you can suggest how can I work around this one?
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Jan 6, 2011
I am wondering what I should use to connect to TD via VB.NET. Whether or not I should use ODBC, etc.My server is TDDEV, database BCPM_DDBO. Also, passwords are changed every so often by DB Admin so I would not want to hard code a password in the connection string. I know that ODBC will prompt for user/pass. Is this the route to go?
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Jan 11, 2011
I'm really struggling here - I'm trying to create a connection string to my TD backend and this is not working unless I create a data source in the project and enter my username & password. (to be stored in the config file?) I just want a simple connection string that will allow me to perform updates - furthermore i would like it to prompt the user for a password initially. I keep receiving the error:"No error message available, result code: DB_E_ERRORSOCCURRED(0x80040E21)" [code]
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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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Mar 11, 2011
all I want is a function like this:
[URL] but then with the option to provide username & password. I have managed to do this with the webbrowser, first logging in then go to webpage and get source code but this takes much longer than just getting the source code...
Is there any way to do this? I found this:
[URL]
I tried with &username=...&password=... in the URL but it didn't work
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Aug 28, 2009
I have installed Visual studio 2008 professional edition(trail). I want to fetch data from Teradata Database programatically, how can I go a head, Sample code would be a light in the tunnel.
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Apr 4, 2012
How can I add data to databound combobox in vb 2005
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Jan 30, 2012
I have a DataTable that is bound to my GridView via a method a created. The function returns a new DataTable each time, so I don't have direct access to the data that is in the DataTable.
I'm trying to update my database with the data from the DGV, but anytime I try accessing the columns or rows, I get an error saying the column/row index isn't correct.
I'm using the RowValidatedEvent and if use the following code in a dummy project while manually adding the columns, the result is predictable.
VB.NET
MessageBox.Show(dgv.Item(e.ColumnIndex, e.RowIndex).Value.ToString)
But when I do the same with my bound DGV, I get the exception mentioned above. This leads me to believe that I need to access the DataTable directly, but I can't because I get it from a method.
So is there a way to access the grid view's bound data? I've been playing around with various properties, but have come up short so far.
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Nov 20, 2011
ut refreshing a databound Combobox After New Data in Imported into the Database. As it seems not be updating Without Closing the Form Thus resetting the Binding Source. but how can i do this on the Fly Lets say on the Combobox is Clicked it dose the updated List?
Its starting to be Quite Irritating That it is dosen't seem to be affected by:
ComboBox1.ResetText()
ComboBox1.Refresh()
[code].....
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Dec 25, 2011
how to save data (for example some text that user type [as password etc]) and save that password on same location where is application. After saving I want to have also Load option so we can load saved data.
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Mar 28, 2011
I have a user control inside of a repeater that is being bound by a sqldatasource. I get the following error: Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control. EDIT: NEVERMIND Egg on my face. I was getting this databind error because I was binding it somewhere else in an effort to troubleshoot my real problem from last friday but I forgot about it.
WHAT MY REAL PROBLEM IS: The usercontrol is getting bound before the properties get set so it appears as if they are never set. When stepping through I see that they get on the property is hit before the set on the property is hit. For example if I put <%# EVal("Address_ID") %> before the user control I will see the ID displayed but then the user control will display an emptydatatemplate because it is being passed the ID of 0.
<asp:SqlDataSource ID="sqlFacilityAddresses" runat="server" DataSourceMode="DataSet" SelectCommandType="StoredProcedure" SelectCommand="SP_Facility_GetAddresses" ConnectionString="<%$ ConnectionStrings:Trustaff_ESig2 %>">
[code].....
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Apr 23, 2009
I need to quickly demonstrate a project and decided to create a user control that is connected to an Access database through pure simple data connections (create the dataset and drag it on the control.)When I build the project and add the usercontrol to panel control on the main form, no data is shown in the datagrid.When I add the data components directly on the main form, the data is displayed properly. why I can't get my databound user control to display the data on my main form?
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Dec 28, 2011
i am using vb.net with asp.nethow am i going to check that this class has 10 people already if i continue adding the 11 one it should prompt me that the class is full once i click save button, i know is something like validating but not sure howi can first add a few student to class 2A and later on continue with adding to another class however, when i return to add more student into 2A and save, it should help to check like what i mention above i have this table call listOfStudent
listID class student registerNo
1 2A A 123
2 2A B 456
3 2B C 789
i have a aspx web page, i have a drop down list where i select the class
[code]...
when enter finish the first row of student data, user can click on the addNewRowButton to add a second row of student data and so on, then after all is done when the user click saveAllStudentDatabutton, it should check whether this class i selected from drop down list has already has 10 student if it does it prompt if it don't it will add in
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Nov 17, 2010
I working working with Visual Basic 2010 Express. I have a DataGridView that is linked up with a local SQL database I've created. I have it currently where the user can click a button to save their data to the db, but am unsure how to prompt them to save or discard changes if they are closing the program without saving.
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Mar 17, 2012
I have two checkedlistboxes (chkLB_Sentinel and chkLB_Scourge) binded to my database.I have a listbox (LBPlayers) with 10 players in it (0 To 9) which I fill using the items checked in the checkedlistboxes and the display member is Nickname.Whenever I want a msgbox to popup containing the first player which is 0, I'm recieving the msgbox "System.Data.DataRowView"
I have this simple code:
Private Sub frmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim con As New SqlClient.SqlConnection
con.ConnectionString = My.Settings.MyConnectionString
[code]....
The problem is if I write the msgbox without .toString I get an error "cannot convert to prompt" so I'm obliged to put .toString Why am I getting this kind of error even if I have the DisplayMember binded and how can I fix it ?
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Apr 16, 2012
CODE:
That code works to read the entry data and to recognise the correct data, and the incorrect. However, even if entry is correct, the error msgbox will appear (x times of how many records there are in file), despite being navigated to the menu. Anyway that the Else isn't triggered when data is correct. Also for it to appear just one instead of (x times of how many records there are in file.)
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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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