Checkbox update in GridView - asp.net

Question

When people search on my website using a GridView I would like to have a checkbox column that they click on which will change the value in a column called STATUS to U. I'm having a heck of a time finding code that works so I was hoping you guys could help. I'm a COMPLETE NOOB so please be descriptive if you know the answer.
Code for Checkbox button - Currently when I search it comes back saying that it cannot convert string to boolean.
<asp:TemplateField HeaderText="Successful Contact?">
<EditItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server" checked='<%#Bind("status")%>' AutoPostBack="true" />
</EditItemTemplate>
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server" checked='<%#Bind("status")%>'
Enabled="False" /></ItemTemplate>
</asp:TemplateField>
This is the vb code
Protected Sub GridView1_RowUpdating(ByVal sender As Object, ByVal e As GridViewUpdateEventArgs)
For Each GridViewRow In GridView1.Rows
Dim row As GridViewRow = GridView1.Rows(e.RowIndex)
Dim value As Boolean
value = DirectCast(GridView1.Rows(e.RowIndex).Cells(0).FindControl("CheckBox1"), CheckBox).Checked
Dim connectionString As String = ConfigurationManager.ConnectionStrings("Data Source=server;Initial Catalog=i3FCC01;Integrated Security=True;").ConnectionString
Dim com_sql As New SqlClient.SqlCommand
Dim insertSql As String
insertSql = "Update CallQueueFCC Set Status='U' where Id = #id"
Using myConnection As New SqlConnection(connectionString)
myConnection.Open()
Dim myCommand As New SqlCommand(insertSql, myConnection)
myCommand.Parameters.AddWithValue("#status", value)
myCommand.ExecuteNonQuery()
myConnection.Close()
End Using
Next
GridView1.EditIndex = -1
DataBind()
End Sub

Answer 1

You are binding Status value for check box checked attribute which takes Boolean value.
But status has string value as you are binding string to Boolean it is throwing error.

Answer 2

Like Kiran mentioned earlier, status has a string value so you need to do some firefighting in the row databound event.
Markup
<asp:TemplateField HeaderText="Successful Contact?">
<EditItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server" AutoPostBack="true" />
</EditItemTemplate>
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server"
Enabled="False" /></ItemTemplate>
</asp:TemplateField>
Code behind
Protected Sub GridView1_RowDataBound(sender As Object, e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
If e.Row.RowType = DataControlRowType.DataRow Then
'Evaluate the state of the check box, true when status =U , and false otherwise
Dim itemstatus As Boolean=If(DataBinder.Eval(e.Row.DataItem, "Status"), True, False)
Dim CheckBoxItemTemp As CheckBox=CType(e.Row.FindControl("CheckBox1"), CheckBox)
CheckBoxItemTemp.Checked=itemstatus
End if
If e.Row.RowState & DataControlRowState.Edit Then
'same as above but now for edit item template
Dim editstatus As Boolean=If(DataBinder.Eval(e.Row.DataItem, "Status"), True, False)
Dim CheckBoxEditTemp As CheckBox=CType(e.Row.FindControl("CheckBox1"), CheckBox)
CheckBoxEditTemp.Checked=editstatus
End if
End Sub