Winforms - List Data In Ms Sql?
Mar 10, 2010
Below is the code that I'm using in ms access to list the data according to what is selected in combobox and what is input in textbox.
My problem is there no commandbuilder in ms sql like in ms access, because it fails when I try:
dim mscombuilder as new sqlcommandbuilder
Here is the code:
''#list school
If ComboBox1.SelectedItem = "School" Then
Dim connectionString As String = "Data Source=SENBONZAKURASQLEXPRESS;Initial Catalog=testing;User ID=SenbonZakuraRew; Trusted_Connection=True;"
[Code].....
-There is no such thing as commandbuilder in the options that will appear. Do you know of any alternative of commandbuilder in ms sql?
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Aug 17, 2009
I'm trying to find a dropdown-style list for images I can use in a program of mine. It's fairly simple, just needs to display a few images in a grid with tooltips for each one, and I need to be able to get whichever one was last picked. For example,[URL] without the tab bar in it. Unfortunately my monetary budget is zero which means I can't purchase any controls?
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Dec 29, 2011
what is the Windows Form version of a Drop Down List? I would think a Combo Box, but that only seems to have a Text for the Items, not Text/Value (with Value being my primary key for the table I'm populating it from).
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Dec 30, 2009
Check out the simple code below :
[code]...
What happens is that when the Item2 is selected in the first listbox, the second listbox automatically changes its selected item to the Item2. This happens just the same with the other listbox.
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May 15, 2011
Are there any good free alternatives to DevExpress data grids (WinForms)?I am looking for WinForms Data Grid and Data Editor Controls.
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Mar 15, 2010
I have a gridview that is bound to a datasource on a Windows Form (VB.NET). The grid displays a list of "certifications", and each "certification" can be associated with many languages. So in the grid, I'd like to display "languages" as a column, and display a comma delimited list of the language names for each "certification".
In the "certification" class, one of the properties is a list of "language" objects, and each "language" has an ID (guid), name (string), and value (integer).
So in the datasource, I have the list of "languages", but I can't figure out how to display them in a column on the grid. The gridview won't let me add the language list property as a column.
So is the ONLY way to add a new property on the "certification" class, which returns a string that contains the comma delimited list, and show THAT on the grid? Or is there a way to display that list of "languages"?
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May 25, 2010
The ContextMenuStrip tied to the ListView control. However, the right click option (edit)appear where ever i click on the ListView area, this gives me exceptional error because the implementation of edit can only cope with a selected row. I only want it to appear when on a selected row (blue highlighted row). How can i do it?
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Nov 15, 2009
I'm looking for a line or two of code that will bind a DataSet.Datatable column to a textbox on a Datarepeater?
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Sep 8, 2010
I have pairs of controls: immagebox + textbox = one pair.I want these to show up in a single column grid/tabular format.Each cell contains one image/text pair.I want this grid to scroll because the number of pairs is dynamic depending on a user selection.I suppose I will be adding these controls in code at runtime when the user makes his/her selection.
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Mar 24, 2010
I need to retrieve my data from a ListView control set up in Details mode with 5 columns.
I tried using this code: MessageBox.Show(ManageList.SelectedItems(0).Text)
And it works, but only for the first selected item (item 0). If I try this:
MessageBox.Show(ManageList.SelectedItems(2).Text)
I get this error: InvalidArgument=Value of '2' is not valid for 'index'. Parameter name: index
I have no clue how I can fix this, any help?
Edit: Sorry, should have said, I'm using Windows.Forms :)
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Mar 6, 2009
i'm planning on creating an application that uses both winforms and webforms and i have a few concerns before i proceed.1. is it possible to pass data between winforms and webforms?2. how about passing objects like connections, datatables, dataadapters etc. between webforms and winforms?3. i want a centralized authentication for all forms and webpages... meaning if i'm authenticated in a winform, i should also be authenticated when i launch a webform thru the winform and vice versa.
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Feb 15, 2012
I have form in VB.Net 2010:
I want to click-drag multi rows in dgRegister and Date, Course ID to drop in dgCourseStudent with column Date, Register ID, Register Name and Course ID.
How to code this in vb.net language?
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Dec 14, 2011
I am working on an application that has a Winforms and MVC3 Web component. We need to be able upload large files from the desktop to the web. I have tried the various VB 2010 WebClient and FTP FileUpload alternatives but continue to run into permission issues, even though the User-ID and password I supply are the same as those used by an FTP application that successfully copies files to the same MVC3 site. In my efforts to find alternative solutions, I have looked into using WCF which also seems complicated and problematic for this particular application.
The closest I have come to a solution utilizes HttpWebRequest on the Winforms application. The following VB 2010 and C# code (MVC3) successfully passes the Filename and File data to MVC3 (the InputStream contains the references and UrlEncode data, but the class containing the fields for this data are null. (I have also passed just the file data without the filename, and the uploaded file is successfully created from the InputStream - but the method variable is still null). Although I could pick apart the InputStream, I would prefer a more elegant alternative.
VB 2010 Winforms method:
Public Shared Sub FileUpload(ByVal Filepath As String)
Try
Dim Host = System.Configuration.ConfigurationManager.AppSettings("Host")
Dim url As String = Path.Combine(Host, "UI/FileUpload")
Dim request As HttpWebRequest = HttpWebRequest.Create(url)
request.Method = "POST"
[Code] .....
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Feb 27, 2009
We have data that's updated nightly in a database residing in the same instance as my app's database. So to save on database calls, I want to cache this static-for-the-day data into a List(Of MyObject). From a theory point of view, should this cached List(Of ) be cached in the presentation layer code, via a global variable? Should it be in a global variable in the .DLL?I'm thinking in the .DLL, because I created a service layer, which is exposed publicly to the GUI and makes calls to the data access layer inside the .DLL:
Public Shared Function Search(ByVal criteria As Core.Other.Customer) As List(Of Core.Other.Customer)
' TODO: Check the customer cache to see if it has been populated yet. If not, populate it.
If 1 = 1 Then
[code]....
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Dec 30, 2010
This is what I'm sure will be the first of many noob-ish questions from yours truly... I'm studying as a mature student for a Computing Degree (encompassing web design, hardware, programming and systems analysis). The programming seems to be my weak spot this year. I enjoyed C++ last year, doing basic console applications, but progamming visually with VB in Visual Studio 2008 I'm struggling!
[Code].....
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Mar 13, 2011
I have a "legacy" VB.NET application (winforms) written for .NET 1.1, and re-compiled under 2.0 that produces a report in HTML via a custom XmlTextWriter wrapper that is suited for HTML. The user then would print the report into pdf if they wanted to.
That was 2003, and now technology has changed a bit, especially within the C#/VB.NET world, and customers want to skip the HTML part, and go to PDF directly. What are my options for open source, or low cost PDF libraries that work well with .NET and must support tables with pictures (generated bitmaps from code) and text.
[Code]...
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Nov 6, 2009
How can I develop a custom data source control for WinForms ? This example is just for ASP.NET. VS version: VS 2008
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Jun 29, 2010
I do have Visual VB.NET 2008 Express installed, SQL Server 2005 express installed, and I do know how to start a brand new project in VB.NET, and then add the database to the solution explorer, modify the tables/fields, etc. I know how to create a WinForm, add some controls (and name them and whatnot).....
So in MS Access I know how to use VB in the Code-Behind-Form to use the form in an unbound manner, and insert data into the tables via Visual Basic with SQL statements. I am looking to be able to begin the same sort of thing here, because I guess I have to start somewhere?
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Jan 16, 2009
I have a WinForms app with a datagridview and a bindingsource. I want the user to confirm changes before I save them to the database. don't want to pop up the confirmation dialog unless I know the user has made changes. So I need a way to check if changes have been made.
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Mar 10, 2012
When I add a new row to a datagridview, I am able to add data to a cell, but when I go to the row with the mouse the data disappears out of the cell. What code is needed to get the data to stay?
Private Sub BindingNavigatorAddNewItem_Click(sender As System.Object, e As System.EventArgs) Handles BindingNavigatorAddNewItem.Click
' When a new row is entered add Site id.
[code]....
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Jul 10, 2009
I am working on a project. Part of my project requires me deal with datagridview in windows form. I used 'Choose Data Source' wizard to display data from Microsoft SQL Server 2005 and into the datagridview. In my windows form, I have a datagridview with the columns - Email , CustomerNam e and Select. I also have a Add Contact button.
I have 2 questions which is:-
1) How do I insert checkboxes in the Select column
2) Upon inserting checkboxes in the Select column how do I display the rows, that I have selected using checkboxes in the Select column, to display into the textbox in another windows form?
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Jan 16, 2012
If I enter a data in a textbox, I want my listview to select the same data entered in the textbox. Example: I have a StudentNumber column in my listview and it has data on it (ex. 123456)
I will enter 123456 in the textbox. The ListView must select 123456?
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Jul 8, 2009
Am in the process of architecting a new windows forms application, and I intend to use Visual Basic 2008 and SQL Server Express 2005. This is my first application in .Net and I really want to observe the best OOD & OOP principles to create an application that is easy to maintain and extend (add new functionality). My issue is in regard to databinding on the UI. From experience, what do you guys recommend to use for databinding? Should I return datasets/datatables from my Business Layer and bind these to UI controls or should I return Business Objects and bind these to UI controls? And what are the pros and cons of each approach?
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Jul 29, 2010
This is what I want to do as seen in C#(loop against a list and fill another list from its data using Linq)
[Code]...
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Dec 15, 2010
Recently I have started a personal project to make a media player in Visual Basic .NET
I am trying to get the Album data and Artist data from a .mp3 file, and in many different ways, it has failed. Here is my code I am trying to use but always returns blank:
[Code]...
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Nov 1, 2010
I have a VB2005 winforms application that will loads city data from my database table. This is to ensure that the user enters the correct city spelling, in order to receive an accurate quote. Currently, there are about 150K cities that are being loaded to the dropdown listbox on page load. It takes about 30-40 seconds for that page to load. My initial thought was to allow the user to select the state first. Then load the city values. But the user has the option of going back and requesting a quote for a different city / state.
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Aug 4, 2010
I have added a list box and now i need help to display the data about my employees in the list box. How am i supposed to do that, do we have to put in codes or need to use that small arrow near the list box.
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Dec 3, 2009
I'm an instructor trying to use data from a .txt file to list the grades in a list box. I just want to grab the data from a .txt file, list the total amount of grades in a list box, the mean (avg) and the standard deviation.
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Apr 20, 2010
I have a grid containing rows flagged with different priorities. I want to color the high priority rows red, low ones blue, etc. I'd like to set the shade based on a mathmatically calculated gradient rather than arbitrarily assigning colors to specific priorities. How can I extract a single color from a single point along gradient?
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Oct 5, 2009
how to add data from one list box to data from another list box to get a total. My application has to have three list boxes. One list box contains a list of workshops a user can take. Another contains a list of locations the user chooses from to take the workshops at. When the user clicks an Add Workshop button, the application should add the total cost of the selected workshop at the selected location in the third list box. My problem is that each workshop last a different amount of days and each location charges a per day fee. I'm not really sure how to add all of this information together to come up with the total workshop cost. I think I should use a Do While loop. Another problem is that after the total cost of the workshop is added the user should be able to click a total cost button and get the total cost for all workshops they have selected.
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