I've read jmcilhinney's code bank submission on retrieving and saving database data and have been using this a lot.
What i would like to know now is how/if i should be using the built in VS method of databinding with bindingsource, bindingnavigator and dataset controls etc for anything?
What can i do better with this method and what are the limitations?
Also, i'm using a function that reads an ini file to set the path in the connection string, can i still do this using the data binding method?
I've read a fair bit on using databases with VB but the above is still a bit confusing to me.
I am using System.Data.SQLite with VB 2010 to bind to a SQLite database. Everything works just as it did in VB2005. I drug a table from the DataSources Window onto the form and automatically generated the binding navigator, table adapters, etc. I can preview data in the TableAdapter but when I run the app no data is read into the grid. The same thing happens with the details view. The BindingNavigator shows 0 of 0 records. There are 27 records visible when I preview the data. The code follows:
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.
public class CategoryRepository: RepositoryBase<Category>, ICategoryRepository { public CategoryRepository(IDatabaseFactory databaseFactory) : base(databaseFactory)
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Does anyone has an idea what i should change to let it work and let my UserRepository use the methods in RepositoryBase while implementing the IUserRepository?
This program I am writing is basically a way to record orders. So I got a bunch of possible components required, which got their textfield(1 for product info, 1 for product price). Those are controlled with a checkbox, disabled on default. Enabled when checked.
Something like this: Label, Checkbox, Product info textbox, Product price textbox. This for a bunch of products, and at the bottom you got the total costs textbox. Which updates as entries are made.
1. Would a access database be a good thing to use for this? To save the completed forms to, for later viewing through the program. Or are the better options for this kind of thing.
2. Would crystal reports be a good choice to make the reports after the form has being completed. So you got a decent sheet which shows you the entire order, and give a print ability.
I'm using Visual Studio 2010 Express running on Windows 7 64-bit. I get the same error as detailled in this link [URL] .I need to work with some data to develop the system. I think I can only do this by changing the Copy to Output Directory file property to "Copy if newer" to prevent the debugger from losing it.However this causes TableAdapter.Fill to exit from the sub immediately after executing leaving behind the other code in the form "Add_Load" routine.
im trying somethign strange with the datarepeater, perhaps im overcomplicating it, but currently i have a database filled with names and numerical values in the first column of the datarepeater is the textbox for the name, however the rest of the row is simply a series of rectangular shapes where the backcolor is set to red. for each of the values in the database there is suppose to be a mathematical check where the result of the check will determine the color of the box of that values respective row.so as an easy example imagine a single row in the database is as such
I've embedded the WebKit browser in my program to use as a replacement for Internet Explorer. Well, it seems a few methods did not carry over. These are the methods I'm speaking of:
WebBrowser.Document.element.InvokeMember("click")This is not supported in the webkit engine. Is there another way I could invoke a click on an element? It has a .Focus method, maybe I could use that?
WebBrowser.Document.element.InnerText = xxx Setting a text box's text is also no longer supported. It would be nice if there was some way to set a text box's text with the web kit browser.WebBrowser.Document.element.setAttribute("theAttribute", "theValue")Same deal here. This code does not work with the web kit browser.
I am working with a vb program, but there is something strange on one of my .vb code pagewhen i put the "dot" afther the object name its dont show the methods availables for this objectbut on other vb code pages i can see it. but in this one no.for exmaplethis is a piece of code: Dim sb As New StringBuilder()
I am not sure how clear my question is by the title, but I am trying to make Class methods instead of Instance methods in Visual Basic that way I don't have to waste memory and code creating temporary objects to execute methods that don't need instance variables.
I am not sure if you can do that in VB but I know you can in Objective-C by using either a "+" or "-" sign in front of the method declaration. And in C++ (at least I think, I can't remember) you put the static keyword or const keyword in front of the function.How would I do this in VB if it is possible? Or should I just make a separate set of functions that are not members of a class?
I've got grid data and I want to allow the user to filter it.I'm curious what controls or methods you all have used successfully to ask the user for this type of information.I see EXCEL allows you to click a header - ask for a filter - and get arrows in the heading to allow you to see a DISTINCT list with CHECK BOXES.Google Docs spreadsheet does almost the exact same thing.
Is there a way to disable the default members and methods inherited from the base class?
I made some classes in which elements like "Equals" and "ReferenceEquals" are confusing or I don't want them to show, or I have other methods providing similar functionality with different names and I don't want to override and use the default name.
Okay i have been looking around for some tutorials on databinding by code but all the ones i find use vb's built in function to create the connection to the database and then the binding but i need to do it manually. I am totally new to databinding as in i only learned about it from a previouse thread and have been fiddling since.
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So im kind of going blind here, i dont know whats going wrong or if im even using the correct dim statment for the binding,
I developed an application with old VB form and binding the data from Oracle database into VB form. Actually, I tried to bind the data more than 35000 records in to grid. But, it takes more than half an hour and also form was hanged and there is no output. Can you please let me know the solution to fix it and bind the data without any hang in my application. What are the steps to be followed to fix it?
I'm fairly new to VB.net and WPF (and programming in general), so please bear with me. I'm attempting to write a useful database app for my business as a learning project. I did a draft in WinForms, referring to the (very good) Murach book, but am now trying to re-write it with a WPF UI and cleaner code.
I think I understand the basics of WPF binding, but am tearing my hair out trying to find a simple way of binding to parent details - which I would have thought was a very basic scenario, but I can't find anything on it. For example, let's say I havea 'Customers' table with CustomerID, Name, various contact details and then foreign keys CityID and GroupID;
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And then just moving to the first record (as there will only be one). Is this a normal method of looking up a customer? I could also use this method by getting the foreign keys from my customer row and filling the different tables in the dataset all using parameterised queries, then just binding to each table separately - but again, seems very messy.
In a test project I was able to add a datasource to a form, bind it to the datagridview and manipulate it as needed. Now moving forward to the actual project, is it possible to add the datasource to a class and sort through the data for use in the class?[url]...
I have one textbox at form named "Ord ID". I have bind database table with datagridview control and now on load event data is displaying correctly. In Datagridview there is one column which is checkbox type, suppose at datagrid there are 10 records displaying, and I have tick 6 checkbox for 6 records, so when I press add button then the value exist in textbox automatically comes to only six records of Datagridview column named "StatusID".
When the program is executed, the datagridview populate data and also the textboxes(example StockNumber,Description) and when i typed words in the search textbox ,the datagridview filters the matching words.When I clicked the item in the datagridview the textboxes does not changed it didnt show the information...
what the solution for my problem..i need to display the information in the textboxes when i clicked the item in the datagridview. Private Sub txtreg_delsrch_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtreg_delsrch.TextChanged
I have a microsoft database file i'm currently working with in a project. I have already added the data source and all seems to be going well. Quick question though? What I'm looking to do was, have a button called find, when I click it I want it to bring up an input box and use the text the user types in to search through my binding source of names, if it's there I need to display its record to the textbox and if it's not there I need to print out a messagebox saying its not there. I've been told I should trim the usersResponse and look through the binding source table to see if it exists then go from there, but i'm not sure how to do that.
Here's what I have so far:
Dim Message As String = "Enter the name to find." Const Title As String = "Database Project - Find" Const UserEnteredNullData As String = "No input for find."
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My question is, how would I go about searching through my binding source to see if it exists and how would I display it to the name text box?
Is it possible to connect ado.net to an xml file and then make the xml file a data source on my project where I can bind controls to it in designer mode?
I am using two autocomplete textboxes and both of them are binding data from the same table. What I want is when I select an item from the autocomplete drop down list of textbox1 not to have the textbox2 value set. Example :
When I select value1 for textbox1 I get automatically value2 in textbox2. I do not want that.I want when I select value1 for textbox1 , textbox2 to remain empty until I select a value for it (it maybe value3)
I'm using VB.Net in VS2010, I'm attempting to self-host a WCF service. (It's actually in a windows service, but I'm trying to do this via a simple console app. Below is the code in question, the TCP/IP addresses are injected directly here. The WCF service itself is simply a renamed DEFAULT new WCF service project.
Dim host As New ServiceHost(GetType(TestService)) Dim tcpb As New NetTcpBinding() tcpb.PortSharingEnabled = True host.AddServiceEndpoint( _ GetType(ITestService), _ tcpb, _ "net.tcp://localhost:62020/TestWcfService/" _ ) host.Open() Console.ReadKey(True) host.Close()
Is there something special I need to do to get the port to actually bind? when I run netstat -a it doesn't show a listening port on 62020 I am really at my whits end on this. I have another WCF service I'm trying to migrate out of IIS, and into a separate server running in a Windows Service. The WCF service will only be accessed internally. I've been having numerous issues in getting that migrated, so trying to get a simple service to bind, and have a client (website) access it. The other WCF is binding (different port) fine, but having communications errors.
I am working on a CMS system for my business, and need to be able to generate notifications dynamically into a control panel. Please note, I am using .NET 2.0, coding with VB and my data is all held on a MySQL database.This is pretty simple for most aspects, but as the whole thing is dynamic some things are proving more difficult.I have a set of tags which are dynamically generated with a repeater as follows:
<asp:Repeater runat="server" ID="locationRepeater"> <ItemTemplate> <p id='locationNotification' title="<%# Container.DataItem %>" runat='server'> COUNT DATA NEEDS TO GO HERE </p>
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The data is really, really, simple, all I need to be able to do is query a table on my MySQL database for COUNT of ID WHERE locationName = Container.DataItem during each loop of the repeater... but I don't know how to do this.I'm thinking maybe I have to do this first, create a table in memory somehow, but I am afraid I have no idea how to achieve this.
Has anyone got any examples of a similar thing, it's kind of binding to a repeater from two datasources... each task is very simple, but I don't know how to put it all together!
am new to vb 2010 i havent touch VB since 2002 , am a lil confuse how to make things to work now.i have a local database "sql" with 2 tables.one holds the client info and the other the orders for the clients.i have a data grid view and am able to populate the grid with the correct information for the client. using [code]that brigs me all the orders for that client.now orders are also made by campaing.i have a textbox that the user will type the campaing to view just the orders for that campaing beloning to that clientand i get stuck,what i get is all the orders from that campaing and the 1st filter by client gets override.
