want to filter datagridview

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I want to filter datagridview. I have one textbox. When I enter value in that textbox datagridview should automatically get filter as per text in textbox.. I load data in datagridview by using following code:

VB

i = 0
rs.Open("select * from prtydtl where gkhass is not null ORDER BY prtynm ASC ", con, ADODB.CursorTypeEnum.adOpenKeyset, ADODB.LockTypeEnum.adLockOptimistic)
        While Not rs.EOF
            prtygridview.RowCount = prtygridview.RowCount + 1
            prtygridview.Item(1, i).Value = rs.Fields("prtynm").Value
            i = i + 1
            rs.MoveNext()
        End While
rs.Close()

I don't want it by binding method...
I want to filter the list that s displayed on screen

Posted 22-Nov-12 21:12pm

dcba1

Updated 12-Dec-12 21:29pm

Aarti Meswania

v3

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StackQ · Answer 1 · 2012-12-12T22:47:00

In my opinion:
1st-> U have to create a function to filter.Like this

VB

Private Function GetFilterQuery() As String
    Dim FilterString As String = ""
    Dim ValueString As String
    ValueString = UrTextBoxName.Text.Trim
    If ValueString <> "" Then
    FilterString = GetQueryWithLogic(FilterString, "TextBoxValue LIKE '%" + ValueString + "%'")
    End If
    Return FilterString
    End Function

Logic of GetQueryWithLogic

VB

Public Function GetQueryWithLogic(ByVal InputQuery As String, ByVal QueryForProcess As String) As String
           If (QueryForProcess = "") Then
               Return InputQuery
           Else
               If InputQuery = "" Then
                   Return QueryForProcess
               Else
                   Return InputQuery + " AND " + QueryForProcess
               End If
           End If
       End Function

2nd:Create this

VB

Public Sub FilterOutDataViewData(ByRef Dv As DataView, ByVal RowFilter As String)
           If Dv Is Nothing Then Exit Sub
           Dv.RowFilter = RowFilter
       End Sub

Now create a event for textchanged

VB

Private Sub TxtFilter_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles urtextBoxName.TextChanged, 
           Try
               RenfroCommonModule.FilterOutDataViewData(DV, GetFilterQuery())
           Catch ex As Exception

           End Try
       End Sub

Quote:
and on the event of urtextbox property select textchanged event and add TxtFilter_TextChanged

Christian Graus · Answer 2 · 2012-12-12T21:42:00

Solution 1

Binding is much cleaner than what you're doing. Either way, you should filter in your SQL and update your grid, that's the only way that makes sense, let the database filter for you. That you want to write ugly code does not change that.

Posted 12-Dec-12 21:42pm

Christian Graus