Solve Asp.net error: operation is not valid due to the current state of the object

Today, my colleagues encountered the following problems during system maintenance: Asp.net error: operation is not valid due to the current state of the object. Google:   After solving this problem, I am deeply touched. I have been working for

Does ASP function calling affect performance?

I did a test just now. The test results are as follows: starttime = timer '=== super connection ================ ====================== function linkto (strurl, strtext, strtype, Strid, strclass, strtitle) If Len (strtext) = 0 then response.

ASP. NET: Summary of State-State management in ASP. NET (1)

Preface We used to use a single machine when learning computers.ProgramThat is, a program running on a computer. With the development of the program, the C/S structure emerged, and then the B/S structure emerged. The most popular structure is the

Cause and solution of Logon Failure of ***/aspnet' in Asp.net

1. if this occurs on the local machine, select the corresponding database in the Console Directory of the SQL Server Enterprise Manager and right-click the user section under it to create a database user, add ***/ASPNET users and grant them public

ASP. NET (a series of learning languages)-multithreading programming in. NET-passing Parameters Using thread. Start () (4)

  Reading directory I. Preface Ii. Instances Iii. Running Effect   I. Preface  As mentioned in the previous section, the parameter for creating a thread is a function. When a new thread starts, it will execute this function without any parameters,

ASP. NET (a series of programming languages)-multi-thread programming applications under. NET (7)

  Reading directory  I. Application domain Overview 2. Relationship between application domains and threads 3. The thread spans multiple application domain instances. Iv. Running Effect I. Application domain .In. NET has a feature in. NET has a CLR,

Using two asp: ButtonColumns in one row of datagrid

Source: http://www.imcoder.org/starter/198821.htm  Q: Hi All I am having trouble distinguishing between two "buttons"/"links" in my datagrid. It seems to bring back the same information to the ItemCommand. Is there any other way to do this? (Having

Mobile IE6 Standard ASP. NET-onblur not working for, problems with getAttribute

Source: http://www.imcoder.org/mobile/210544.htm  Q: Hi all, I have a simple ASP. NET 2 page with a TextBox control, in the PreRender I set ClientSide events :- Response. Attributes. Add ("onchange", "javascript: alert ('changed ');");Response.

Nine tips for a healthy "in production" ASP. NET application

Referred from: http://blogs.msdn.com/dougste/archive/2006/04/05/568671.aspx   The following are based on problems I see people having every day in production ASP. NET systems. 1. Before you go into production, long before, plan, specify, effecect,

Detailed description of ASP. NET configuration file Web. config

1. Understand the Web. config fileThe Web. config file is an XML text file used to store configuration information of ASP. NET Web applications (for example, the most common setting of ASP. NET Web application identity) Authentication method), which

Container. DataItem is faster than Eval in ASP. NET

In ASP. NET, the databinding expression is evaludated during the data binding phase.You can use two ways to write the evaluation expressions. However, it's recommended that we use "Container. DataItem" for performance reason.For example, the data

Asp/js Functions

'********************************** ********************************* 'Check if it is mobile browsing '*************************************** **************************** If instr (request. ServerVariables ("HTTP_USER_AGENT"), "Mozilla") = 0

Developer-oriented ASP. NET development technology series course (video course instructor: Xu Dong)

Developer-oriented ASP. NET development technology series (1): jspdeveloper Article --asp.net.zip Lecture content: ASP. NET and JAVA are the two main camps of software development. How can we switch from JAVA Development to ASP with

Develop Web forum Applications Based on ASP. net mvc Framework

I want to build a complete ASP. NET MVC forum application from start to end in this series of articles. The ultimate goal is to explore and promote the best practices for building applications using the ASP. NET MVC framework. 1. Introduction In

Introduction to the logon control in ASP. NET 2.0 (zhuan)

Document directory   Author: Liao Yunxiao compiled by, source: Tianji net responsibility Editor: Fangzhou Many new functions and controls are added in asp.net 2.0. Among them, the New Login control makes the WEB application design more handy.

Obtains the Server Control identifier generated by ASP. NET.

1Private void Focus (string sDomID){RegScript ("focus", "document. getElementById (\" "+ sDomID +" \ "). focus ();");} 2Public void Select (TextBox txtBox){String sScript = "var dom = document. getElementById (\" "+ txtBox. ClientID +" \ "); if (dom)

Asp.net frontend and backend function variable mutual access

1. How to access the C # function in JavaScript? 2. How to access the C # variable in JavaScript? 3. How to access existing JavaScript variables in C? 4. How to access JavaScript Functions in C? The answer to question 1 is as follows: Execute

Strong ASP. NET data binding Ultimate Edition

After reading what dragonpig wrote, "teach you 30 seconds to create a strong type of ASP. NET data binding", it was so powerful that we could still bind data like this. I immediately tested it and made some improvements. It has been applied to the

ASP. NET use FCKeditor Editor

FCKeditor Official Website Http://www.fckeditor.net/ 1: COPY the fckeditor folder to the WEB project, add DLL references to the project, and create an UploadFiles file (the directory for uploading images) 2: web. config Configuration -- allows

Differences between ASP and ASP. NET

The biggest difference between ASP. Net and ASP is the conversion of programming thinking, not just the enhancement of functions. ASP uses html, a mix of scripting languages such as VBS and JS, and those scripting languages are weak-type and

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