How to maintain datagridview checkbox column checkstate when filtering
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Thread: How to maintain datagridview checkbox column checkstate when filtering

  1. #1
    Join Date
    Oct 2017
    Posts
    1

    How to maintain datagridview checkbox column checkstate when filtering

    I have a dgvw.It loads data from an sql database.Now, i added a checkbox column to the dgvw.My winform also has a textbox that is used to search in/filter the datagridview. Here is my code:

    Code:
    Private Sub Contact_Load(sender As Object, e As EventArgs) Handles MyBase.Load
            filterdata("")
        Private Sub filterdata(valuetosearch As String)
            con.Open()
            Dim cmd As New SqlCommand("Select * from Contacts where CONCAT([Unique id],Prefix,[First name],[Last name],Gender,Title,Company,Phone,Mobile,Fax,[b.email],[p.email],Reference,Address,[Address 2],Country,City,Zip,Facebook,GooglePlus,Instagram,Twitter,Website,Salary,Currency,[Group],[Id/Status],Note,[Added by]) like '%" & valuetosearch & "%' ", con)
            Dim reader As SqlDataReader = cmd.ExecuteReader
            Dim dt As New DataTable
            dt.Load(reader)
            userdatagrid.AutoGenerateColumns = True
            userdatagrid.DataSource = dt
            userdatagrid.Refresh()
            con.Close()
        End Sub
        Private Sub searcgcon_TextChanged(sender As Object, e As EventArgs) Handles searcgcon.TextChanged
            If searcgcon.Text = "" Then
                filterdata("")
                entrylabel.Text = "There are/is " & userdatagrid.Rows.Count & " contact entries"
            Else
                filterdata(searcgcon.Text)
                entrylabel.Text = "There are/is " & userdatagrid.Rows.Count & " contact entries that contain your query :" & searcgcon.Text
            End If
        End Sub
    The problem with this code is, suppose i have checked a row's checkbox then i try to type something in the textbox/filter using the textbox.But as soon as i start typing the checkbox that was checked earlier becomes unchecked.I know i am wrong some where.I got this code from youtube and stackoverflow.So please help me..How do i maintain the checkstate while filtering ?
    Last edited by 2kaud; October 28th, 2017 at 10:50 AM. Reason: Added code tags

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