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300
Virtual Scrolling
posted

I just downloaded the 2011 vol 1 trial to determine if we can take advantage of your controls and i am having a tough time getting it working right.

I am currently tryint to do virtual scrolling and it seems it only allows me to scroll to the visible rows x row factor and then it goes blank if I scroll beyond that.  So my view is 15 rows and factor is 3 then i can scroll to row 45 and then it goes blank if i scroll beyond that.  i am not sure if there is somethign i am not doing correct.  the samples out there seem pretty straight forward so maybe i am just missing something.  I am binding this to a data source at a click of a search.  here is my code.

.aspx

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<

 

 

ig:WebDataGrid ID="gridCustomerSearch" runat="server" Height="350px"Width="600px" AutoGenerateColumns="False" DataKeyFields="CustomerID"><Columns>

 

 

 

<ig:BoundDataField DataFieldName="CustomerID" Key="CustomerID"><HeaderText="CustomerID" />

 

 

 

</ig:BoundDataField>

 

 

 

<ig:BoundDataField DataFieldName="CompanyName" Key="CompanyName"><HeaderText="Name" />

 

 

 

</ig:BoundDataField>

 

 

 

</Columns>

 

 

 

<Behaviors>

 

 

 

<ig:VirtualScrolling Enabled="true" RowCacheFactor="3" ScrollingMode="Deferred" TooltipVisibility="NotSet" ThresholdFactor=".5"></ig:VirtualScrolling>

 

 

 

</Behaviors>

 

 

 

</ig:WebDataGrid>

.vb to retrieve the data

Private

 

 

Sub btnSearch_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSearch.Click

Dim daCust As New EmunWorks.DataAccess.CustomersDB

 

 

Dim arrCust As EmunWorks.Info.CustomersInfo()

arrCust = daCust.GetCustomerByName(

 

Me.txtFindCustomer.Text, False)

lblRecordCount.Text = arrCust.Count

gridCustomerSearch.DataSource = arrCust

gridCustomerSearch.DataBind()

 

 

End Sub

Any help would be appreciated,

Sy