linq-to-dataset

相关标签：javascript jquery android 多少钱 iPhone

Using LINQ to fetch result from nested SQL queries

This is my first question and first day in Linq so bit difficult day for me to understand. I want to fetch some records from database[详细]

2022-12-30 23:15 分类：问答
LINQ to Object to DataSet

Can I do a LINQ Join from a开发者_运维技巧n List to a DataSet?Are there any caveats to doing this?There are obvious performance problems ahead, depending on the size of each side of the join, so the r[详细]

2022-12-29 21:06 分类：问答
Getting minimum - Min() - for DateTime column in a DataTable using LINQ to DataSets?

I need to get the minimum DateTime value of a column in a DataTable. The DataTable is generated dynamically from a CSV file, therefore I don\'t know the name of that column until runtime.Here is code[详细]

2022-12-28 14:16 分类：问答
Store an image in a SQL Server CE database

Does any one know of an example on how to store an image in a SQL Server CE database? What data type should the column be?(I am guessing binary.)[详细]

2022-12-27 01:51 分类：问答
grouping data from two dataset

i\'ve got a problem with dataset: I\'ve got two dataset from two different server but they have the same columns.[详细]

2022-12-24 04:43 分类：问答
Binding LINQ query to DataGridView

This is very confusing, I use AsDataView to bind query result to a dgv and it works fine with the following:[详细]

2022-12-22 06:52 分类：问答
LINQ to DataSet - group by variable field, or join on a variable condition (with sum)

The following query works as long as I can add DataRelations. However, the relation \"Table2Table3\" may no longer be clearly defined, so I think I need to remove it. The old relation strictly joins o[详细]

2022-12-22 01:54 分类：问答
How can I use a condition based on the queried data in an anonymous class in LINQ to DataSet?

I can do this by looping the result of a simplified query: var query = from myrecord in dt.AsEnumerable()[详细]

2022-12-21 21:39 分类：问答
LINQ - How can I use DataSet.DataRelation to join these tables and sum one field?

My LINQ query is not producing the expected output below. Basically, it\'s the sum of table3.cost corresponding to table2.code and table2.class categorized by table1.alias and ordered by table1.priori[详细]

2022-12-21 19:15 分类：问答
LINQ to DataSet Dataclass assignment question

I\'m working on a Silverlight project trying to access a database using LINQ To DataSet and then sending data over to Silverlight via .ASMX web service.[详细]

2022-12-18 17:38 分类：问答