Gridview does not refresh display updated record - asp.net

Question

I am currently working on a project. I suddenly stumbled on a problem that really blew my brains. I have a function that displays the content of a table in a database to a gridview which I named bindGrid. It is working perfectly fine when I query 50 to 90 records. However when I query 100 records or more the gridview does not display the records until I change the value of my dropdown box that is set to autopostback.
Here is the sample of the code:
Protected Sub btnFilter_Click(sender As Object, e As EventArgs) Handles btnFilter.Click
If cboFilter.Text = "DMZ" Then
lblErrFilter.Visible = False
lblError.Visible = False
If drpYear.Text = "--Select--" Or drpMonth.Text = "--Select--" Or txtDMZ.Text = "--Select--" Or txtTop.Text = "" Then
If drpYear.Text = "--Select--" Then
lblErrYear.Visible = True
Else
lblErrYear.Visible = False
End If
If drpMonth.Text = "--Select--" Then
lblErrMonth.Visible = True
Else
lblErrMonth.Visible = False
End If
If txtDMZ.Text = "--Select--" Then
lblErrDMZ.Visible = True
Else
lblErrDMZ.Visible = False
End If
lblError.Visible = True
lblError.Text = "No value specified for the following parameter(s) *."
Else
lblErrYear.Visible = False
lblErrMonth.Visible = False
lblErrDMZ.Visible = False
Call bindData()
'If Me.IsPostBack = True Then
Call bindGrid()
'End If
'
End If
'__________________________________________________________________________
'Zone filter
ElseIf cboFilter.Text = "Zone and Book" Then
lblErrFilter.Visible = False
lblError.Visible = False
If drpYear.Text = "--Select--" Or drpMonth.Text = "--Select--" Or txtZone.Text = "--Select--" Or txtTop.Text = "" Then
If drpYear.Text = "--Select--" Then
lblErrYear.Visible = True
Else
lblErrYear.Visible = False
End If
If drpMonth.Text = "--Select--" Then
lblErrMonth.Visible = True
Else
lblErrMonth.Visible = False
End If
If txtZone.Text = "--Select--" Then
lblErrZone.Visible = True
Else
lblErrZone.Visible = False
End If
lblError.Visible = True
lblError.Text = "No value specified for the following parameter(s) *."
Else
lblErrYear.Visible = False
lblErrMonth.Visible = False
lblErrZone.Visible = False
Call bindData()
Call bindGrid()
End If
ElseIf cboFilter.Text = "Account Number" Then
If txtFrom.Visible = True And txtTo.Visible = True Then
If drpYear.Text = "--Select--" Or drpMonth.Text = "--Select--" Or txtFrom.Text = "" Or txtTo.Text = "" Then
If drpYear.Text = "--Select--" Then
lblErrYear.Visible = True
Else
lblErrYear.Visible = False
End If
If drpMonth.Text = "--Select--" Then
lblErrMonth.Visible = True
Else
lblErrMonth.Visible = False
End If
If txtFrom.Text = "" Then
lblErrR1.Visible = True
Else
lblErrR1.Visible = False
End If
If txtTo.Text = "" Then
lblErrR2.Visible = True
Else
lblErrR2.Visible = False
End If
lblError.Visible = True
lblError.Text = "No value specified for the following parameter(s) *."
Else
Call bindData()
Call bindGrid()
End If
Else
If drpYear.Text = "--Select--" Or drpMonth.Text = "--Select--" Or lstAcct.Items.Count = 0 Then
If drpYear.Text = "--Select--" Then
lblErrYear.Visible = True
Else
lblErrYear.Visible = False
End If
If drpMonth.Text = "--Select--" Then
lblErrMonth.Visible = True
Else
lblErrMonth.Visible = False
End If
If lstAcct.Items.Count = 0 Then
lblErrAcct.Visible = True
Else
lblErrAcct.Visible = False
End If
lblError.Visible = True
lblError.Text = "No value specified for the following parameter(s) *."
Else
lblErrYear.Visible = False
lblErrMonth.Visible = False
lblErrR1.Visible = False
lblErrR2.Visible = False
Call bindData()
Call bindGrid()
End If
End If
Else
If cboFilter.Text = "--Select--" Then
lblErrFilter.Visible = True
End If
lblError.Visible = True
lblError.Text = "No value specified for the following parameter(s) *."
End If
'Response.Redirect("~/Sites/CD/TopCon.aspx", True)
End Sub
as you can see the execution is done after I click on the filter button.
Here is my page load:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If User.Identity.IsAuthenticated = False Then
Response.Redirect("/Default.aspx", True)
Else
If User.IsInRole("chicken") = True Or User.IsInRole("dog") = True Or User.IsInRole("cat") = True Then
If Not IsPostBack Then
maxTop = 10
txtTop.Text = maxTop
Call bindData()
Call bindGrid()
lblUser.Text = lblUser.Text & User.Identity.Name
lblIP.Text = lblIP.Text & GetIPAddress()
cboFilter.TabIndex = 0
Call fillYear()
Call fillDMZCombo()
Call fillZoneCombo()
Call fillType()
Else
*Call bindGrid()*
End If
Else
Response.Redirect("/Default.aspx", True)
End If
End If
End Sub
Well I know the reason why the gridview refreshes when I click on my control that is set to autopostback it's because of the bindGrid that I inserted on my page_load inside the else.
It really seems to be a passive line of code. What really bothers me is why is it that my bindGrid inside the filter button does not execute when I query 100 records or more.
Here is my code for bindGrid:
Public Sub bindGrid()
IpAdd = GetIPAddress()
xUser = User.Identity.Name
ShowCon = New SqlConnection("some data connection")
ShowCon.Open()
cmdShowCon = ShowCon.CreateCommand
cmdShowCon.CommandTimeout = 600
cmdShowCon.CommandText = "some simple select statement"
daShowCon.SelectCommand = cmdShowCon
dsShowCon.Clear()
daShowCon.Fill(dsShowCon, "someTable")
grdTopCon.DataSource = dsShowCon
grdTopCon.DataBind()
End Sub
Any help would be much appreciated.

Answer 1

Try setting a breakpoint in the btnFilter_Click to see what's causing the problem. It maybe either caused by the algorithm inside it or inside the Page_Load event.