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Switching Filter Expression

Posted By:      Posted Date: October 01, 2010    Points: 0   Category :ASP.Net

I have an Gridview for which I initially programmed an option to use a drop down box with values for filter expressions. It enables to select a subset of records and then choose to select one.

initial setup

I received a request to allow searching on some fields in a grid view. So I presented a choice to switch between these hard coded filter expressions and selecting a database field and typing in a search string:

Choice of search or filter

If user clicks the radiobutton to Search the controls change to databasefield,searchbox,submitsearch:

search option

My submit search button has this code:

Dim filterExpression As String = DropDownList3.SelectedValue + " LIKE '%" & TextBox2.Text & "%'"
Dim filterparameters As String = "TextBox2.Text"

SqlDataSource1.FilterExpression = filterExpression

The resulting search works very well and switching betwe

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