Using GridView Update Command For Specific Fields?
May 4, 2010How do I use the Update command in GrideView?
I would like to use update command for specific fields in the dataset, but not all fields from database ( or maybe in GridView? )
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[code]....
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[Code]....
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Apr 3, 2010I have 3 gridviews in one of my web page, each of which will display different data based on the typeid. I have simplified the system structure in the image below(further description will be stated below the image):
As shown in the image above, the web site(presentation layer) will work closely with the Business Logic layer(BLL) and Data Access Layer(DLL). ObjectDataSource control will be the middle man to select, update, insert and delete the data in the gridviews.
During Select, returned data from the database at DAL will be stored in a datatable and return to BLL and then the website itself.
[code]....
However, the Update(command button) and Delete(template field) doesn't work,the RowUpdating and RowDeleting event wasn't trigger when I click on the button, but it works if I set the gridviews' datasourceid to the objectdatasource.
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Here is my code [Code]....
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To Recreate this bug:
A simple Gridview bound to an Objectdatasource on a page with ALLOWEDIT ALLOWDELETE
If one inserts some code (a function call in my example) that just recurses the PAGE controls in either the PAGE_PREINIT, PAGE_INIT, PAGE_INITCOMPLETE events,
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BELOW Is SAMPLE Code using the NORTHWIND DB Products Table and a Typed DATASET.XSD - You can use your own datasource for the ObjectDatasource - (Note I took out the Foreingkey constraint in products table from Nortwind for delete to work)
NOTE: One should be able to just cut and paste the function PAGECONTROLS_RECURSETEST on any working form that has a bound Gridview with Update functionality and you should be able recreate the bug that way by calling the function from the different page_events
[Code]....
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[Code]....
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1 Delhi Manali 17-Dec-2010 19-Dec-2010 $900 $600
2 USA Canada 18-Dec-2010 20-Dec-2010 $500 $800
3 Newyork salinas 19-Dec-2010 22-Dec-2010 $760 $1000
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This is the code, which is actually 100% auto-generated from when I created the GridView control and specified in the options to implement update, delete, edit options.
<asp:GridView ID="GridView1" runat="server" AllowPaging="True"
AutoGenerateColumns="False" DataKeyNames="ticketNum"
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