Optimize The Code For Copying Data From One Dataset To Another?
Oct 6, 2009
this is in reference to my main post here update mdb with data from different tables in dataseti have two tables in a dataset called dsSource. dsSource.Tables(0) has the following columns: ,,,,,,,code,art,sizerng1,sizerng2,sizerng3,etc...... dsSource.Tables(1) has the following columns: ,,,,,,,code,art,size1,size2,size3,etc...... the conditions here are: 1) to look for "1" in columns sizerng1, sizerng2, etc. of dsSource.Tables(0) 2) match code and art on both tables finally if both conditions are valid then the size values in columns size1, size2, etc. will be assigned to columns in sizerng1, sizerng2, etc. my main concern here is i have to loop through all rows in both tables which takes a long time, so is there a better way to do this than the code i have below?.
'***put the sizes from weights to traps file
row1 = 0
For Each dr As DataRow In dsSource.Tables(0).Rows
How can I Optimize my own code written by VB.net? Is there any tools for it? Does Visual Studio have any one? What's your suggestion? I use VS2008 as my editor.
I have been looking for some syntax online to help me do this, but i cannot seem to find anything. I am trying to move some rows from a table in an access database to another on a click event handler.
One of the tables names is "Basket", and the other is order.So far i have this.
I have code running in the Datatable.ColumnChanging event in my dataset. This dataset underlies a form and conventional drag/drop controls are in place for data entry.when the event triggers and runs, I am running code in the form that checks the dataset.HasChanges property. It is showing False. But this is immediately after the ColumnChanging event has been triggered.Okay, I see by others posts and MSDN that .HasChanges will only be true after moving off the row with the changed column. I have also noted lots of discussion about the advanced binding property of DataSourceUpdate Mode, but that does not address this issue.I guess I can do this by checking the state of the row for the binding source. Just seems odd that the event behind the dataset can be triggered and that does not change the dataset.HasChanges property.
I want to copy the different objects of a tabpage into another tabpage while running the application(using a button click), but that those objectshave the same code as their references, so they work exactly as their references.
It's not a coding problem. I can't seem to copy my coding in to word without it losing all of the colour. Is there any easy way that I can copy and paste this code in to word without it losing all of the formatting?
Now I am trying to copy the MS access table(hoping to keep the input mask). I have the table copying and renaming, but it fails to keep the input mask... So far this copies and clears the table, is there anything I am missing to make it keep the input mask
vb Query = "SELECT * INTO [test] FROM [tblAccounts] WHERE 1=2" comm = New OleDbCommand(Query, conn)
I have tried everything I can to get beyond this error which shows below as <<<<< error here. It is trying to fill a dataset from a data adapter. If I change the SELECT statement to just SELECT * FROM xTable I get the correct number of records in each table. But anytime I try with a more complex statement I get the error message shown below which indicates System.Data.Common.DbDataAdapter.Fill(DataSet dataSet. I've completely erased all data and entered a new set of test data so I know there is no problem with relationships. Each table has primary key which is foreign key in other table. IS there something wrong with the Imports section: Imports System
i am trying to copy data from a standard Dataset to a Type Dataset (XSD) of same table structure. i want to use Automapper to do that one. So how can i do that using automapper?
I have two Datagrids, One grid has all the customers garments on it with style number and contact length. The other grid has the users who have garment issued to them. the style number is in both grids. I need to loop through the users grid and say if the contract number is 1 from the first grid then the contract date on the second grid will be todays date + 365 days (year contract) I have looked at using a stored procedure and also a for each command but I am just getting stuck with it all. [Code]
I have a copying error with my program. I am trying to copy the internet cache folder, and the error states that some files cannont be copied (read only maybe?) How can i make it copy, or just skip the uncopyable files?
below is my code for copying an image from a form to send it to the printer.it works but it tends to be a little blurry. is there anyway to make it sharper?
Bmp = New Bitmap(Me.ClientSize.Width, Me.ClientSize.Height) Bmp = New Bitmap(800, 500) Dim G As Graphics = Graphics.FromImage(Bmp) G.CopyFromScreen(Me.PointToScreen(Me.ClientRectangle.Location), New Point(0, 0), Me.ClientSize)
I have some textboxes that I need to get data to on another tab, everything works beautifully until I get to one and that is where the client ID has to be filled oin to that textbox. I have a chkBox that will verify the data that is suppose to be put over intothe tabbed page and if I check it, it will put the data into the textbox. Yet if I leave it unchecked the data does not get copied.
Public Class Form1 Private Sub ClientsBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
I have three data files that I include with my project. They are all set to Build Action Content and Copy to Output Copy Always. I have a preferences form that allows the user to copy these files to a folder of their choosing. It works fine in the IDE. However, when deployed one file will copy but the next returns an error the the file cannot be found. In the following code block a deployed application will copy ABW11Data.sdf but cannot find 100610_40.dtb or 2118@005.dtb. They are in the deployment files and I can search and find them in the clickonce installation although they are not in the same place as the ABW11data.sdf.
If My.Application.IsNetworkDeployed = False Then My.Computer.FileSystem.CopyFile(My.Application.Info.DirectoryPath + "ABW11Data.sdf", TextBoxFolder.Text, True) My.Computer.FileSystem.CopyFile(My.Application.Info.DirectoryPath + "100610_40.dtb", .SelectedPath + "100610_40.dtb", True)
I'm trying to program that specific data will be copied to the clipboard so the user can paste it in, for example, Excel or Word. I already know that the following code can do this:Clipboard.setdataobject( " some text " )But that's where my problem just starts. It seems I can only copy the data to Excel and Word etc. as long as my application is running. As soon as I quit it, the clipboard is empty.
I'm writing an app to print a list of beers that are currently on tap at the restaurant where I work part-time. We have 29 taps and dozens of different beers. I have 2 tables in a database (one with the "master list" of all the beers and an "on tap" one with one entry per tap). Each database entry includes fields for name, brewer, location, style and ABV. So far I've made a GUI with 29 combo boxes (one for each tap) and 2 buttons (one that opens a dialog box to modify the "master list" and one to print the list). The idea was to make it as simple as possible since the people who use it aren't great with computers and are often in a hurry.
Each combo box drops down the whole master list of beers and I'd like for the selected beer to be written to the corresponding index in the "on tap" table. My idea is to then extract the data from the "on tap" table and print it. I haven't done any coding yet, really, just drag-and-drop.It's frustrating since I know how I'd do the back end in C or C++, but not in VB. The reverse is true for the GUI.
I'm planning to create an VB.net application for retrieving data from a database (MS Access) and store it to a web server (MySQL data base). I really have confusion in my mind. I'm planning to use task scheduler so that the program will automatically run. I'm planning to set the time every 5 minutes.How can I avoid the redundancy of data? For example, I'm planning to get the sales for 5 minutes, after 5 minutes I will do it again. I think there will be redundancy in that case.
How do I distinguish copying data and a pointer when using a class?E.g. public class myparams var1 as integervar2 as intergerv3 as stringend classmyvar as new myparamsmyvar.var1=1myvar.var2=2myvar.v3 ="hh"othervar as new myparams
I want to copy all of myvar data into othervar in one go.. without doing othervar.var1=myvar.var1 etcusing othervar=myvar" Looks like its just copying the pointer of myvar into othervar? Can I copy all the class data in one go? VB2008 user
I need to copy data using Vb.net if possible from one excel spreadworbook to another and place the data into the correct columns in the existing excel spreadsheet. The column titles of the spreadsheets match up, I have several templates I need to place data into and the order of the columns is different in each template so I need a way of searching for a column header in the template and then copying the data into that column.
I need to order lists of up to 100 addresses in optimized order. Is there a way to do this since getdirections is limited to 25? i don't se any way around this 25 limit. Is there one I'm missing?
No I'm trying to use MapPoint object model but it crashes as well with this many waypoints. Here is my example proof of concept code from Excel:
Sub OptimizeRoute() Dim objApp As Object 'New MapPoint.Application Dim objMap As Object 'MapPoint.Map
bar = 1 foo = <1 or 2, depending on previous code> if foo=1 while bar <= 5
[code].....
What I want to know is, is the compiler smart enough to optimize away the (apparently) repeated tests for "foo = 1" since foo is not modified in the body of the loop?If so, I might use the second construct since it is semantically equivalent (I think!), takes less code and reduces indentation levels.
I am just learning Visual Basic and I am following along in a book called "Build a Program Now!".I have an application that is calling a database in SQL and there are instructions for copying the .mdf and .ldf files from the bin folder to the project folder that should allow any changes made in the running application to be reflected in the rows of the database.I have copied the files as per the instructions, but the changes are not showing in the database.
I have a dataset (WW1Dataset) with one data table(WW1).(database used in an access database) I'm trying to filter the dataset e.g a user wants to filter by a chosen surname (SurnameTextBox.text) so the datset is filtered to display only those records wherethe surname column in the dataset matches SurnameTextBox.text.
I need a list from OldGuids that are not in the NewGuids, so I used the Contains method, the problem is that it is already running more then half hour, is there a faster way? or how much longer would it take about? [code]
vbc.exe has something called /optimize switch right. If I enable that what are the optimizations the compiler can do for me? The MSDN documentation just curtly says 'does various compiler optimizations'. Where can I find the complete quantified view of the different optimizations that actually goes into.Here is the thing I am pursuing this route. One of the code blocks in a module I am leading has a lot of delimited array manipulations. I believe this is going to be a heck costly in terms of string memory handling. I am looking to see if I can retire them by way of simple properties or methods so that the compiler can internally do something like our c++ inline functions making a best win-win offer in terms of both memory and processing time. I admit when the compiler translates them as inline function, the JITed code might be big in size right?
