Datatable
How to create duplicate rows based on some conditions?
My Dat开发者_如何学Catable has some columns that contains data in the format as 2011~|~2012~|~2013. Now the table has only one row. But based on how many such data is there, that many rows should be c[详细]
2023-03-30 06:10 分类：问答Problem while sorting DataTable with LINQ based on DateTime
I want to 开发者_C百科sort a DataTable based on a column which has date value. I was running in to issues so i created following test method:[详细]
2023-03-30 05:35 分类：问答Validation table for data tables
I\'m new to db design and have a couple of problems. I have a job title field in 3 data tables and need to use a validation table to limit the range of values. My question: Do I need to create a sepa[详细]
2023-03-30 02:40 分类：问答DataAdapter.Fill NullReferenceException after DataTable.Columns.Clear and column sort
I\'m using MySQL with C# and a DataGridView. The problem happens when the users clicks on a column to sort it, followed by an action which forces the columns to be cleared (Happens when an user ticks[详细]
2023-03-30 02:32 分类：问答SQL Server: Friends class "facebook like"
I need that 1 User can be friend of other user. So I think that I can use 2 table: table User (Id, Name, Date, Etc.)[详细]
2023-03-29 21:17 分类：问答Convert single column of a DataTable to CSV
Using VB.NET, what is the most concise way to convert a single column of a DataTable to a CSV?The values开发者_高级运维 are integers, so I don\'t need to worry about character escaping or encoding.Wha[详细]
2023-03-29 16:13 分类：问答Search data from dataset
I want to search record based on following fields P_num ,P_name, P_dob,P_code I am using more than 4 tables to retrive data,[详细]
2023-03-29 13:41 分类：问答c# editing sql table data without loosing the existing [duplicate]
This question already has an answer开发者_开发知识库 here: Closed 11 years ago. Possible Duplicate:[详细]
2023-03-29 12:16 分类：问答IEnumerable as DataTable performance issue
I have the following extension, which generates a DataTable from an IEnu开发者_运维百科merable:[详细]
2023-03-28 13:12 分类：问答primefaces datatable filtering
I use the car example from primefaces site, but it works only one time and do not refresh values after onkeyup event. Can somebody help me?:) TOM[详细]
2023-03-28 13:00 分类：问答
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