As you have configured detailsview now your job is to configure your object datasource control to update. Second step: Configuring objectdatasource to update detailsview record back to database. Right click on objectdatasource control select show smart tag and navigate to update tab of that dialog I am assuming that you remember the steps we have done for configuring select command. Here select the function of Deparment class which is going to update your record in db.
Once you select a method for update it again asks you about parameter of that update method source. Just select appropriate source according to your requirement in our case it get departmentid from control parameter ie dropdownlist, after this click on finish. After you configure your ODS your code looks like this. I am writing new method in department class which will do this for me as shown below.
Note : Make Sure that Your PropertyNames assigning to your details view and update function parameters with same name. This is one of the common mistake which most of us do. Make sure that names for parameters are your class property name. In the below function if we change parameters to your own custom names you will get errors message when u run it. Think that I have created a method with below signature. Now when you run it you will get a message as System. Solution for this exception is to create your update method as below.
We got error here beause we tried to pass more parameters to update function other than that exists. As we are using strongly typed collections as our datasource here data flows through and fro from the properties of that class.
ExecuteNonQuery ;. Now your Detailsview is ready to handle your edit operations. As we are aware of creating the function in our BL or DAL class with the same properties name as parameters. Now it will be easy for you to configure all the other commands of ODS like insert,delete..
Working with vs control is very easier when compared to vs Here we don't have to write even a single line of code to bind your datasource with your control just selecting its property will do your stuff..
View All. A guide to ObjectDataSource control. Rehaman SK Updated date Nov 17, Introduction One of the best new features of the forthcoming ASP. ToString ; conn. Open ; cmd. You should now see the following dialog box: Other way to do this is to drag details view control and object data source control from data tab of toolbox on to default.
ExecuteReader ; while objSqlDataReader. Configuring Your Detailsview and ObjectDatasource control To Update Now that we have seen how easy it is to show data using this latest control's of vs As you have configured detailsview now your job is to configure your object datasource control to update Second step: Configuring objectdatasource to update detailsview record back to database.
ExecuteNonQuery ; conn. Next Recommended Reading. Net Core 6. Create A. Understanding Thread Starvation in. NET Core Applications. Exploring Numeric Streams In Java. After the Update operation completes, the OnUpdated method is called to raise the Updated event. You can handle the Updated event to examine any return values, output parameters, and exceptions, and to perform any post-processing. For more information about parameter merging, object lifetime, and method resolution, see UpdateMethod.
You should validate any parameter value that you receive from the client. The runtime simply substitutes the parameter value into the UpdateMethod property. When the ObjectDataSource control is associated with a data-bound control, such as the GridView control, it is not necessary to call the Update method from page code.
The Update method is invoked directly by the data-bound control instead. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Object Data Source. Let's start with the retrieve method paging is covered later : C. Copy Code. Manuel Abadia Web Developer.
He has done some external work in companies like Namco America Inc. Salini 8-May Leblanc Meneses Mar Member Mar Manuel Abadia Mar EhsanTabari 1-Jul Manuel Abadia Jul Ricardo Casquete Apr Manuel Abadia Apr BeCapture Jan Manuel Abadia Jan Manuel Abadia Jun Christian Schiffer May Go to top. Layout: fixed fluid. Web Developer. First Prev Next. Pham Dinh Truong. Excellent article!
I bookmarked it and refer it for my own projects. Just one a glitch when it comes to fetching grid with sorted columns. Please build a function to make sure that only valid columns are specified in the sort expression to avoid a SQL Injection attack. Hi Manuel, very good article! In your explanation, you said: Quote: If the object returned from the select method is not a DataView, a DataSet, a DataTable, or an ICollection Well, Dictionary class implements ICollection and IEnumerable, but if I return this from my select method, i've a data serialization like [key, value] objects.
My vote of 5 P. Nice Article. Useful to me. Hi, I would like to display different images in one frame one after another, without using F5 button.
I used adrotator control to display different images but to view different images,I always used f5 button,Is there any method so that i can display image automatically.
Thank you! Thank you very much for your article! It is just what I was looking for allowed me to get a couple of hours of sleep more. Moreover, it explains the subject in very clear and understandable manner. Setting affected rows smrtdude Apr Good article.
I was searching around trying to get a handle on where the default value of -1 for the AffectedRows was coming from. Just a quick comment on your code fix for the AffectedRows value. If an unhandled exception is thrown in your insert, update, or delete methods then the e. ReturnValue will be null. If you don't check for this prior to casting e. ReturnValue, this will throw an exception and your data method exception will be lost.
Leblanc Meneses. First, excellent work in summarizing all of this for us. With so many acronyms in our field i want to make sure i understand these "data" terms. I'm a little confused by the name ProductDAL.
Shouldn't it be ProductsDAO? Business Object - what you call Product in your sample. Goal provide a statically typed container to work with specific data. Whats going on behind the scenes?
When you bind an ObjectDataSource to a gridview, detailsview. The view is given the ObjectDataSource by aggregation. Thats why the gridview passes maxrows, startindex to your datasource. The biggest problems with this is you can't encapsulate everything, you end up with stray hooks in a usercontrol or page. NpgsqlConnection ConfigurationManager. ConnectionStrings[ " dbhReader" ]. Integer, Also its probably a good idea to call ProductsFactoryDataAccessObject which returns IProductsDAO that provides implementations for sql server, postgresql, sqllite You got me going the right track and i appreciate your work.
Filtering Member Mar Member Hi, thanx for this great article. I have tried many exmaples to accomplish this with generic lists and this ons actually works or it might be that I can understand this demo I've applied these classes on my own project and it works great. I have a question regarding Filtering. I have read that you can only apply filtering if the objectdatasource is returning a dataset or datatable. Is there no way to write own filtering code for the object datasource.
I have ALL the functionality i need except this. I am trying to alter the LoadAll int startIndex, int maxRows, string sortedBy method to inlcude a filter and then add a where clause to the sqlcommand if filter is specified. Is this possible? Re: Filtering Manuel Abadia Mar I'm glad you liked the article.
There is no way to extend the ODS behavior and most of it is not extensible or internal. Business Objects EhsanTabari 1-Jul
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