ADO.NET :: Entity Framework 3.5 / Select Category From Dropdownlist Bind Gridview To All Products Related To This Category?
Nov 5, 2010
i create example using Northwind database so i create a new website and add new ADO.Net Entity Data Model (.edmx) called Northwind.edmx and i add Categories and Products table inside this (.edmx) file
and add new ADO.Net Data Servuce called "ADODataService" and add it as WebReferences called NorthwindService
so i add new web page and drag DropdownList and Gridview as i want to bind Dropdownlist to all categories and when i select category from Dropdownlist bind Gridview to all Products related to this category
so my code
[Code]....
and my code
[Code]....
so when i select category from Dropdownlist nothing happen :(
also you will find commented code in method BindCategory whuch is not work also.
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May 16, 2012
this is my last thread
[URL]
this is my code
<li><a href="Furniture.aspx?h_name=electric">Electric</a></li>
in Furniture.aspx will show all product that have H_name=electric
i have another Item
<li><a href="Furniture.aspx?h_name=?">show all</a></li>
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Mar 25, 2011
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Feb 7, 2010
I'll try to explain as simple as I can in text what my problem is. I don't see any other way to make my issue clear.
I have a GridView that uses an ObjectDataSource.
The ObjectDataSource has an DataObjectTypeName defined, so I pass/get complete objects or list of objects to/from the data access methods.
The objects I'm working with, let's say we work with Book objects, contain a Title and a Category, BUT the Category is an object itself. When the Select method is called, we get a List of Book objects, which is perfectly displayed, overridden ToString method in the Category objects within the Book objects.
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I bound the DropDownList to another ObjectDataSource that gives me a list of CategoryObjects.
So when I enter Edit mode... the row shows a nice ddl with the available categories. It even selects the right original category.
So far so good... but when I want to save my new selection, I get an error that a string (the selected category in the ddl) cannot be converted to a Category object (that's what the Book object, that is going to be used for the update, expects).
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Mar 30, 2011
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[Code]....
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I am using nhibernate and performing one to many relation,
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product.ProductID = txtProductID.Text;
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[Code]....
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[Code]....
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[Code]....
[Code]....
[Code]....
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[Code]....
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