the following steps:// 1) use Split to break each row (a string) into an array// of strings,// 2) use Skip to skip the "Student ID" column, and store the// rest of the row in scores.// 3) convert each score in the current row from a string to// an int, and ...
How to select multiple columns that not using in group by? how to select parent and children in one select using entity framework in a self related table How to select some specific column in Lambda Expression LINQ in Entity framework How to select specific column form DataTable Using Linq?
convert datatable column values double[] convert date string from yyyy/MM/dd format to datetime yyyy/MM/dd format Convert Datetime column from UTC to local time in select statement Convert DateTime to Base64 string Convert DateTime to smalldate on C# Convert Datetime to String in C# convert de...
the following steps:// 1) use Split to break each row (a string) into an array// of strings,// 2) use Skip to skip the "Student ID" column, and store the// rest of the row in scores.// 3) convert each score in the current row from a string to// an int, and...
GridViewSelectEventArgs GridViewSelectEventHandler GridViewSortEventArgs GridViewSortEventHandler GridViewUpdatedEventArgs GridViewUpdatedEventHandler GridViewUpdateEventArgs GridViewUpdateEventHandler HiddenField HierarchicalDataBoundControl HorizontalAlign HotSpot HotSpotCollection HotSpotMode HyperLink HyperLinkColumn HyperLinkCont...
In a join clause, if only one of the comparison keys is a nullable value type, you can cast the other to a nullable value type in the query expression. In the following example, assume thatEmployeeIDis a column that contains values of typeint?: ...
So far, the queries you have seen return an entire object, comparable to writing a SELECT SQL query requesting every column in a table. By returning an entire object in your query, you will get all of the benefits associated with the entity classes—the most important of which is the abil...
ProductID == 5 select p; However, sometimes getting all the fields is too wasteful so we want only certain fields, but still use our POCOs; something that is challenging for libraries that rely on object tracking, like LINQ to SQL. from p in db.Product orderby p.Name descending select...
FirstLineHasColumnNames =true}; CsvContext cc =newCsvContext(); IEnumerable<Product> products = cc.Read<Product>("products.csv", inputFileDescription);//Data is now available via variable products.varproductsByName =frompinproductsorderbyp.Nameselectnew{ p.Name, p.LaunchDate, p.Price, p.Desc...
If your table uses an Identity Column for its primary key, asCategorydoes, LINQ to SQL automatically updates your object with that ID once it's been added to the database. As an example, we'll add a newCategoryfor Java. 1. Create new object ...