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.net .NET技术>C# .net应用 ajax ASP asp.net Book C# C++ Collect CSDN CSS C语言问题 Delphi DNS download facebook Flash format ftp google Hibernate idea J2ee java Javascript JAVA基础 JS jsp Leo Linux memcached MYSQL Oracle PHP Python Server SOCKET Spring SQL SQLSERVER Struts tcp/ip to Tomcat T-SQL VC Web WebDesign WEB开发 Windows seen this ASP.NET tutorial Creating a data access layer It worked prefectly well in asp.net and vb.net 2005 Now, i want to do the same with VB 2005 Express Edition, but connected to an Oracle Database Help creating a Dialog Application

use my own application INI files that do NOT reside in the registry. GetPrivateProfileString("Options"..."MyFile.INI") WritePrivateProfileString ("Options"..."MyFile.INI") I'm trying to remained "managed" and was looking at Microsoft.Win32.Registry, but that isn't flexible enough to deal with user defined INI files. Is there any other managed option?

I just start learning Visual Studio 2002. I use C++ and I want to create a dialog application. For this I select File->New Project->Win32 Project and in the Application Settings I chose Windows application. Now, when I run the solution, I get a form with a menu and a dialog form. All I want to get is a simple dialog form. How can I do this? Regards, Nicolae

I need to display a list of categories on the left side of a page, and I am confused how I would do this using a List Control (as appose to weaving my own HTML on the server side). My HTML should look like: Category Sub Category 1 Sub Category 2 Category2 Sub Category 1

In asynchronous model, BeginXXX method returns a IAsnycResult-derived object. IAsyncResult.AsyncWaitHandle will be signaled when the asynchronous job is complete; and BeginXXX method has a argument as AsyncCallback to be invoked when the job is complete. I am wondering. When the asynchronous is complete, is IAsyncResult.AsyncWaitHandle be signaled first, or AsyncCallback be invoked first? -

I am having trouble getting a complex data type to get passed to a non-COM dll's function by ref and return back data from that object. Simple data types work fine but when I try the complex data types, with the class it simply initializes but returns nothing. The struct I have tried several different ways all of them either erros or the app simply closes out (usually when I try to pass the struct with the ref keyword). Any help would be appreciated.

Hi. I got so much help out of the dotnet Groups, so I thought I'd share a little wisdom I found out. Forgive me if the solution I present is already well known (honestly, it is stupid simple) - But I found only questions like mine asked in the header, and no answers. Brief description of the problem: You load your tables using a dataadapter into your dataset. Tables are master/child, the dataset enforces the relation. Somehow, one of the masters got deleted - and the children are stranded. When enforcing the constraint, you get the exception. You want to find out, which child rows cause the trouble. The exception does not deliver this data in one of it's properties. Brief description of my solution: The data has been loaded fine already, so you can do the following (in the catch ex as ConstraintException-block): For each dr as DataRow in ChildTable if dr.GetParent is Nothing then dr.delete Next DataAdapter.Update(ChildTable) Dataset.EnforceConstraint = True Now the rows causing the trouble are gone, and the changes are put back to the database. In my solution, deleting the rows was the best idea - you might need to do something else, but once you know the rows, you can handle them as you like! After Enforcing the constraint yourself, your Dataset is ready to go, as if nothing ever happened to it! Bye, Ralf -

I'm having trouble persisting viewstate information for webcontrols I've disabled via javascript. I have a group of textboxes that I enable/disable via a checkbox control that invokes a javascript method in its onclick attribute. When the page does a postsback, the textboxes that are enabled have their viewstate persisted; however, the ones that are disabled (but still have text in them) do not have their viewstate persisted. I have perused Scott Mitchell's articles about viewstate in asp .net pages, and according to him, controls that are disabled should have a persistant viewstate (as long as they're not in a disabled div tag). Long story short, I've tried many things to get this to work including trying to use the readonly property instead of enabled/disabled, but I can't get it to work with javascript. I'm trying to minimize the number of postbacks this webapp will make, so using javascript is essential.

there a quick way to modify resource cost rates in an enterprise environment so that different rates can be set for different groups of resources? The only way I now is to open each resource's cost table and manually entering them. this process can be very tedious and subject to errors that may be difficult to track. Also, is there a way to do the same for the other cost tables (i.e., B, C, D, or E)? A second question around the same topic is can we use cost rates different than those in the enterprise environment for specific projects? --

have the following situation: The preparation of a project leads up to ONE special day, where a bunch of resources need to be at a special place and need to stay for a certain amount of time. (Think of it as a large meeting where resources are used and everybody works like crazy) Splitting up the preparation has been easy. But the actual day cannot be planned in terms of work hours or assignments. I would like to add all the personnel involved and the material used for the calculation of the cost for that particular day (or event) Is there an easy way to do this? thanks for any help

I need to walk through the values in an enumeration, how is this accomplished.