Sqldatasource updating parameters
Sqldatasource updating parameters - dating a taylor guitar
At the same time, the other manager visits the page and sees the unit price below $5.00 and, noting store policy, decides to mark it as discontinued.He clicks the Edit button and starts to make his change. Will "Scott's Tea" be: The way the Sql Data Source control and Grid View work by default is to update all editable fields, regardless of whether they've been modified by the user or not.
Add(new object ); using (var conn = new Sql Connection("Data Source=.; Initial Catalog=My Db; Integrated Security=True;")) stored procedure on the server.There are few places (if any) other than this blog post that show the necessary steps to implement TVPs against business object collections (it’s not even covered in my book! That means creating an CREATE TABLE [Order]( Order Id int NOT NULL, Customer Id int NOT NULL, Ordered At date NOT NULL, Created At datetime2(0) NOT NULL, CONSTRAINT PK_Order PRIMARY KEY CLUSTERED (Order Id ASC)) GO CREATE TABLE [Order Detail]( Order Id int NOT NULL, Line Number int NOT NULL, Product Id int NOT NULL, Quantity int NOT NULL, Price money NOT NULL, Created At datetime2(0) NOT NULL, CONSTRAINT PK_Order Detail PRIMARY KEY CLUSTERED (Order Id ASC, Line Number ASC)) GO CREATE TYPE Order Udt AS TABLE( Order Id int, Customer Id int, Ordered At date) GO CREATE TYPE Order Detail Udt AS TABLE( Order Id int, Line Number int, Product Id int, Quantity int, Price money) GO CREATE PROCEDURE Insert Orders( @Order Headers AS Order Udt READONLY, @Order Details AS Order Detail Udt READONLY) AS BEGIN -- Bulk insert order header rows from TVP INSERT INTO [Order] SELECT *, SYSDATETIME() FROM @Order Headers -- Bulk insert order detail rows from TVP INSERT INTO [Order Detail] SELECT *, SYSDATETIME() FROM @Order Details END GO’s date and time—as we shouldn’t trust it, not knowing the time zone, not being in sync with the server and other clients, etc. So we’ll accept all required column values for orders and order details from the client, except for var headers = new Data Table(); headers. Developers have resorted to a variety of clever hacks over the years to reduce multiple round-trips for processing multiple rows—including XML, delimited text, or even (gasp) accepting hundreds (up to 2100! But special logic then needs to be implemented for packaging and unpackaging the parameter values on both sides of the wire. Worse, the code to implement that logic is often gnarly, and tends to impair developer productivity. Add("Ordered At", typeof(Date Time)); var details = new Data Table(); details. It is company policy to discontinue all items that have a unit price under .00.
Now, imagine that two managers visit this page at the same time from different computers and both notice that a the product "Scott's Tea" has a unit price under .00.This means that we can be certain that the last scenario won't unfold.Therefore, whatever manager clicks the Update button last will have his or her changes saved, overwriting the other's. Add(end Date Param) End Sub Protected Sub Sqldatasource1_Updating(By Val source As Object, By Val e As Sql Data Source Command Event Args) e. Clear() For Each p As Sql Parameter In update Parameters e. These policies may add friction to the end user's data entry experience.