SQLDatasource Filterexpression

Feb 5, 2007

Hi

on my page: two sqldatasources one has the sqlexperession:

SELECT DISTINCT [Skil] FROM [UsersView]
UNION
SELECT 'Alles'

the other one :

SELECT [UserName], [Afdeling], [Skil], [RoepNaam] FROM [UsersView]

the first source is bound to a dropdown list. witch I want to use for filtering.

the second to a gridview.

the code for the dropdownlist selectedindexchanged is:protected void SkillDDL_SelectedIndexChanged(object sender, EventArgs e)
{
if (SkillDDL.SelectedValue.ToString() == "Alles")
{
SqlDataSource3.FilterExpression = "";
}
else
{
SqlDataSource3.FilterExpression = "Skil = '" + SkillDDL.SelectedValue + "'";
}
}

 The strange thing is that initially 'Alles' is selected in the dropdown list and I see all the records. then I select an other value in the dropdownlist. and I get the filtered records, like I would expect.

then when I select 'Alles' again I keep my last selected records in view. I would expect that the filter is now an empty string and I would get all the records again. what do I do wrong?

thanks

 

Rob Warning

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SqlDataSource

Dec 4, 2007

How can I update more than one table with one UpdateString in SqlDataSource?

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Do You Really Use SqlDataSource?

Dec 9, 2007

Hi,
I have an application w/ n-tier design so I've never used the SqlDataSource up to this point but having to do my own sorting for GridViews is not something I want to keep dealing with. I'd like to take advantage of some of the packaged features too.
My question is: are there any purists out there who opted to use SqlDataSource. If so, what do you think about it? It's nice that SqlDataSource makes things simple but having data classes and dealing w/ exceptions in those classes certainly make an application pretty robust. Should I entertain the idea of using SqlDataSource or stay as a purist and keep doing things the old fashioned way?

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