ADO.NET :: Usage Of Datatable In Vb.net?
Oct 19, 2010how we write this code of C# in vb.net .i want to right this code in vb.net
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how we write this code of C# in vb.net .i want to right this code in vb.net
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'DataTable' is an ambiguous reference between 'System.Data.DataTable' and 'Microsoft.Office.Interop.Word.DataTable'
View 3 RepliesI was reading: [URL]
But I have give a compilation error:
CS0246: The type or namespace name 'DataTable' could not be found (are you missing a using directive or an assembly reference?
i have the dataset with one table.Table contains three column like 'Name','Location','Pin'.I would like to move the data from another table based on schema.
View 2 RepliesIf I am passed a datatable and I cant change the column structure..is there anyway to set an existing column to a Primary key so I can easily Find() the row I am looking for?
View 1 Repliesim trying to copying specific record from one datatable to another datatable i used below code
public System.Data.DataTable selectspecificdatarow(System.Data.DataTable dtg, int count, int startindex)
{
System.Data.DataTable dtn = dtg.Clone();
for (int i =startindex; i < count; i++)
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its taking too long time in cloneing is there any better way to do this task which is Time effecent
how to join two datatable datas into one datatable to show in one gridview
i.e in 1 datatable i have username and pwd and in another datatable i have that user details. how to show all these in one datatable to get those values display in gridview(asp.net)
I always have problem with the conception of flush who knows exactly what it means eg:
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i want to make some questions about asp.net MVC,actually,i am not familiar with web developing.
But,i am assigned for web part.we are using like this.first,we create get set
properties for person data
public class Person
{
public int personID {get;set;}
public string personName {get;set;}
public string nric {get;set;}
}
and then after login,we put data in that class and we use RedirectToAction method like this,
return RedirectToAction("profile","person",new { personID = Person.personID});
it's working normally,but,parameter are shown at URL,how i hide them and also can i hide action name?
Dim dt As New DataTable Dim da As New SqlDataAdapter(s, c)
c.Open()
if Not IsNothing(da) Then
da.Fill(dt)
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When I call da.fill I am inserting all records from my query. I was then hoping to filter them to display only those where the GroupingID is equal to 0. When I run the above code. I am presented with all the data, the filter did not work. Please can you tell me how to get this working correctly.
how to copy data from datatable to table in dataset i ry this but its readonly property
ds.datatable1=newdt.copy
I have a DataTable of available time slots. I have another DataTable of reserved time slots. I need to remove from the list of available slots the ones that have been reserved. The blocks are in 15 minute increments, but one of my problems is that the reservation can be longer than 15 minutes. I've had some luck removing one or two, but not all of the required columns.
Here's my code (it doesn't work right now).
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I have two datatables, I want to get all records which are in one datatable but all matching records which exist in another datatable should not be available.
In terms of set, you can say that record which are in 1st datatable but not in 2nd DataTable.
We have a web application based on asp.net 1.1. We deployed it on a web server but there is a problem about it. In the webserver sometimes cpu usage is increasing to 100% and outofmemory exception is occuring.
I think there are some wrong code inside the project but i don't know where it's.
Now, i want hear your advices about how to find problem and what kind of codes make cpu usage increased.
I have a web server with more than a few ASP.NET sites running on it. Every so often, i notice that IIS is pushing the server's CPU to 100%. The sites share application pools, per .NET version they are running.
What i'm looking for is a way to be able to pinpoint which site it is that is doing this, using some tool. If that tool happened to get down into the code to show it, that would also be nice. If not, i'm happy just knowing which site is causing the issue.
I've already tried using ANTS. However, with ANTS you need to know which site it is, and then have it running and waiting on said CPU-crashing web app. Not perfectly ideal.
how to insert the "captcha code" and its validation process in vb asp.net.... i vave searched every were but i could nat get its code..atleast tel me is it possible to do so or not
View 1 Repliesi have a little problem about using jquery...(i reeally do not know jquery but i forced to use it)
i am using vs 2008 - asp.net web app with c# also i am using telerik controls in my pages also i am using sqldatasources (Connecting to storedprocedures) in my pages my pages base on master and content pages and in content pages i have mutiviews in one of the views(inside one of those multiviews)i had made two radcombo boxes for country and city requirement like cascading dropdowns as parent and child combo boxes. i used old way for doing that , i mean i used update panel and in the SelectedIndexChange Event of Parent RadComboBox(Country) i Wrote this code :
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We got "out of memory" issue on production servers. What API can we use to get live memory (physical and managed) usage of the ASP.NET application?
PS: we're forbidden to profile memory with tools.
i would like to know what the StringWriter Class is about and when we should use it.
View 2 RepliesIs there a way to enforce a class only to be used in ASP.NET ? So that it can't be referenced in a WinForm app or throw exception when instantiated. Is there some kind of .NET class attribute for this purpose?
View 2 Replies usage of asp.net server controls in asp.net mvc. The question is like can we use asp.net server controls in the asp.net mvc? If asp.net server controls cannot be used in asp.net mvc is it a limitation of asp.net mvc model? If it is a limitation then how to use more number of controls(like asp.net server controls)
I have a question in the controller like, controller defines controllerActions. If the controller action method is non-action method, then how to call that nonaction method?I have one more question like, usage of HTTPPost in mivc?can we have a button click action without a HTTPPost attribute to my controlleraction method?
How to create a xml page for a dropdownlist and use it in asp.net.
View 1 RepliesI'm running a Windows 2008 server (a VPS with 1GB of RAM), with SQL Server Express and IIS 7 installed. On it I'm hosting a NopCommerce 1.7 website, with a database of around 26 000 products.
Right now I'm the only user of the website (it's in development) and I'm getting rather bad performance from it. To be more specific every time I make a request, the worker process goes to 90-100% CPU usage for a few seconds. Is it me or this is a lot for a 1 user NopCommerce website?
PS: the worker process uses between 100MB-400MB of memory (private working set), and SQL Server with this database, around 160MB.
My Asp.net application uses 25-30% of the CPU on a test server which has 600 MB Ram on it.
I can see the asp_wb process taking that much percentage of CPU.
This is when I am testing using one user.
How many users can the server afford then without falling over?
Is there a relationship between the CPU Usage and number of user aka if there are 2 users my application will sky rocket to 60% of memory usage?
We have a web application running which having around 100 users logged in, All clients are connected to server using websync. I was having requirement for keeping the session always live, so I am regenerating session when it is about to expire.
But after 3 or 4 days, I found cpu reached to 100% and application locked, then we need to restart the server to make it working.