Im trying to bulk update. I want to use viewmodel pattern. I read this article and create program. Program show Database value and html looks ok. But After submit, Controller couldn't get values. Every values are 'Nothing' please point me where I missunderstanding.
Public Class users
Public id As String
Public username As String
bulk update in datagridview
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Here is what i am doing as of now...
For i As Integer = 0 To Dt1.Rows.Count - 1
Cmd.CommandText = "UPDATE Spares SET Pur_Price=" &
Dt1.Rows(i)("Cost_Price") & ",Sell_Price=" &
[Code].....
However this procedure is very time consuming, i need to optimize it. I need to update 20000 rows ...
I have a dataset with numerous tables.I have changed the column type of a couple of columns in the source DB form smallint to int.No I need to update the datasets (and eventually the code) to the appropriate datatype.Rather than hunt around the dataset and find all the places where these columns are referenced is there a way to direct the dataset to go back to the DB, reread the queries and update the datatypes.I know I can either change the field or one by one go to each table and force it reread the query but I want the dataset to do it in mass.
View 3 RepliesI am working on a desktop application in VB.Net (4.0) There will a lot of SQL scripts which contains a lot of insert queries Currenlty we are running the scripts using SMO (http://msdn.microsoft.com/en-us/library/ms162557.aspx)For performance, we have planned to change the sql scripts to xml file ( instead of insert queries, it will have xml data with a proper xsd defined )Loads xml to dataSet and Using SQL Bulk Copy we are trying to insert to SQL Server.
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Is there a way to transfer huge amount of data in a single shot from vb.net to Oracle database? I have a couple of thousands of records in my vb.net code which I want to update to Oracle database. What I do currently is, call a stored procedure in database once for each of those records. This would end up calling the stored proc couple of thousand times, which is highly inefficient.
View 2 RepliesI am saving the bulk data to the database using xml format from vb.net windows application this is the procedure
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i found that the error is comming because of passing "F&I" value in the parameter value if i pass only "FI" i am not getting error means the error comming because of passing "&" in the parameter value so if i want to save the values like "F&I" how can i save into the database using xml
How can I bulk copy a datagridview that has csv data imported, then export to SQL
Private Shared Sub CopyData(ByVal sourceTable As DataGridView, ByVal SQLDESTINATION As SqlConnection)
' column mappings example:
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I have a problem regarding inserting many data into ms access.
View 2 RepliesI have a VB.NET application that creates a dataview from sql table and exports it as an excel file. Now, the data is inserted value by value. Instead, I want to insert the data from the dataview as a bulk insert on to the excel file. The data insert should happen from the third row, as I need to use the first two rows for column insert and data formating (which is done later in the program using excel macro.).Heres the code I wish to upgrade :
Dim strConn As String = "Data Source = LV-SQL2; Initial Catalog = TC_MASTER; user id = SQL2JOB; password = ******** "
Dim strSql1 As String = "Select Customer_id_1, file_name from customer_list_DA order by customer_id_1"
Dim da1 As New SqlDataAdapter(strSql1, strConn)
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I am sort of new to MVC so pardon my ignorance. I am using IoC ( StructureMap ) and I have a need to pass in an instance of what I consider to be a set of Controls to each view, so I have created ViewModels in order to accomodate this. The view model is populated with an instance of the Controls and the View is then rendered. When a user performs a POST, the Controls are not being passed back to the Action.
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I have been getting up to speed with the MVVM pattern in Silverlight and was wondering how to implement binding from the View to the ViewModel when the ViewModel constructor has a parameter if an interface type.If I bind the viewmodel to the view in XAML then you can not use a parameterised constructor. Given that I was creating a default constructor passing an instance to the parameterised constructor but this breaks the abstraction.
View
<navigation:Page x:Class="QSmart.DataViewer.Report.RecentFailures.Report"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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Is it recommended to use the code behind of the view to pass into the parameterised constructor and then bind to the viewmodel?
I am new to Silverlight, but am up to my ears in some of the more intermediate/advanced stuff.
I am using MVVM, in Silverlight 5.
I have a view (we'll call it ComboView.xaml). It has a ViewModel (we'll call it AwesomeVM)
The view contains the ViewModel, declared in the page's resources like so[code]...
I'm attempting to improve my MVVM abilities in my next WP7 App (which is written in Vb.NET). I have a textbox that has been given focus and has a WP7 keyboard displayed. I am using command binding and a xyzzer's bindable Application bar (which is excellent).[URL] I want to be able to cancel the focus of the TextBox from the ViewModel, by setting focus on the form. Normally (Non MVVM) I would do this from within the form by calling:
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I was hoping to make a PersonViewModel class from an EF Person class, so I can expose more bindable properties.
Public Class PersonViewModel
Inherits Person
Public Sub New(ByVal P as Person)
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Something that has been confusing me for a while now with WPF MVVM is for example, when I have a base model containing nothing but a few properties and some validation code and I then build a view model around this base model, how should the view model be structured.
For Example:
Base Model ->
Imports ModellingHelper
Imports FTNHelper
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What I am wondering is, if there is a better way to structure the view model to improve data binding, so I don't have to bind to Source.Name etc. How should I handle the base model in the view model?
Why is it sometimes when I update a data using da.update(ds), the data sometimes didn't update or change... for example i want to change the name or number n a record, sometimes there is no changes..
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I am completly flummoxed!!! I have writen code for updating my table from a form but when I use the same code only changing the table names it wont work I get the following message: "Update requires a valid Update Command when passed DataRow collection with modified rows" My codes are as follows:
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I am having an issue on the listbox when the new data value equal to previous data then = to "0". However, I want if the new data value( A ) is equal to the previous data( B ) then ( A ) equal to ( B ).
Delegate Sub ListBoxUpdater(ByRef listbox As ListBox, ByRef str As Object)
Private Sub OnQuoteUpdate(ByRef QuoteUpdate As LingLib.structQuoteUpdate)
UpdateListBox(lbBox, QuoteUpdate.tQuote)
End Sub
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My problem is when the new data comes out from the API, if it is equal to the previous data and it will appear 0. But what i want is the new data comes out is 0 and it will equal to previous data. e.g: first data comes out is 12.00, in above case, if the second data comes out is 12.00 but it will shows 0 which means unchanged. But in my case now, i want if the first data come out is 12.00, then if the next data is unchanged (0) and it will appear 12.00 and so on.
I am currently working on a API. I am having an issue on the listbox when the new data value equal to previous data then = to "0". However, I want if the new data value( A ) is equal to the previous data( B ) then ( A ) equal to ( B ).
Private Sub UpdateListBox(ByRef listbox As ListBox, ByRef str As Object)
If (listbox.InvokeRequired) Then
Me.BeginInvoke(New ListBoxUpdater(AddressOf UpdateListBox), listbox, str)
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how to display data in grid view using code that you can edit, update and delete the data...do i need to have a stored proc in this?
View 4 RepliesData binding should be an extremely simple thing to manage but I can't find a SIMPLE solution to the following problem.
I have two forms
Form1 contains a 4x4 MSFlexGrid (unfortunately an unmanaged COM object but I can merge cells, which I can't do with a managed Datagrid)
Form2 contains other controls which change the data in the Flexgrid.
I connect the two with a Public 4x4 array. Form2 changes the data in this array. I can update the grid data by reading the array. But how do I bind the Grid to the array so that it auto-updates - which is the whole point of binding isn't it?
Now i got it to work but the bulk copy is inserting the rows twice, instead of once and i know the table has the correct rows because i can see it in the gridview correctly I FIXED THIS PART my program works fine when i run it in debug mode but not when i place it on the server, it doesnt run the stored procedure when i put it on my server.
Label1.Visible = True
Dim tourid As New List(Of String)
tourid.Add(TextBox1.Text)
Dim tasktype As New List(Of String)
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In my windows application i am inserting bulk insertion in a table for that i am using
Dim da As New SqlDataAdapter("select empno,name,sal from Emp", con)
Dim ds As New DataSet
da.Fill(ds, "emp")
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I am using VB.NET with LINQ to MS SQL.I have two following tables. Now I want to insert multiple items in Tags Table using LINQ, but also wants to check that if any of tag exists in Tags table. It doesn't insert it again and bring the TagID in both cases (if inserted or if found existed)[code]What's the best way to acheive this using LINQ?
View 1 Repliesutilizing the whole LINQ to SQL method?
I've got a DB with about 7 tables I'm trying to link some .net pages to and as much as I can qry most of these tables, I'm having a heck of a time inserting into them. One complex scenerio I am finding revolves around the use of a GUID and how to get that particular GUID to propogate over into another table...
1) how to send bulk email using asp.net.. , have you googled this it has so many softwares but i have to implement in .net. ie: if i send the email to 10,000 users so i have send email at a time , each user should get personalized email on TO address , suppose if the email doesnt exist or not working etc. so i have to show the status of each and every userid whether email is send or not..
2) And i have one doubt suppose if am sending the email to some 100 user, in the middle ie : 50 userid will not exist at that time whether loop will be continuing or it will stopped.
I'm using sqlbulkcopy to load data into a sql2008 database, and we're getting timeout errors loading larger tables. Some tables which were loading OK are failing since indexes have been added to them. The source data is a Informix datareader. I've tried setting large values in both the connection timeout and the sqlbulkcopy.bulkcopytimeout, but the timeout usually occurs within 60 seconds, well below the timeout values I've set (240 secs). I've tried setting the .bulcopytimeout property to zero but it makes no difference. Very occasionally a load will take place - the last large table to load took 7 minutes. I've reduced the batch size to 500.
The documentation on bulkcopytimeout that I have found does not describe what the property actually means - is it the maximum time to complete the entire copy or to complete one batch or what ?Here's some extracts from my error log - the first shows a successful large table load, follow by timeout failures.
24/11/2009 10:59:01
Level : Information
MISLoad - Starting load from Mach4 to ParagonMIS of all selected tables
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I am looking a way to insert hundreds of string into vb6 res file. Spent 2 hours of searching.Is it available at all?
View 2 RepliesI have hundreds of .pdfs that I downloaded that have names that are not helpful at first glance. Part of the download was a 'key' that lets me know which file belongs to which person (I have this in excel). I'd like to know if there is a vb script out there (or one I could get help writing) that would look in a folder and rename the files based on the accompanying spreadsheet.
View 5 Replies