Paging SPGridView with SPListItemCollectionPosition

Question

HI,
I am using the SPGridView, SPGridViewPager in a visual webpart. In the visual webpart, I have two custom webpart properties -
named "Items to show, PagingNumber ". If the "Items to show" is less than 10, then paging is not required. "Paging number" is a dropdown enum which contains 10, 50, 100.
I want to use the "SPListItemCollectionPosition" to page through the items in gridview. How to use it, when using a custom page number?
I have tried the below, but the paging controls are not shown:
<div id="div1" >
<SharePoint:SPGridView runat="server" ID="Gridview1" AutoGenerateColumns="false" AllowPaging="true" PageSize="10">
<Columns>
<asp:TemplateField HeaderText="Titles">
<ItemTemplate>
<asp:Label ID="lblTitle" Text='<%# Eval("Title") %>' runat="server"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<PagerSettings Mode="NextPreviousFirstLast" Visible="true" NextPageText="Next |" PreviousPageText="Previous |" FirstPageText="First |" LastPageText="Last" />
</SharePoint:SPGridView>
</div>
<div id="TestPager" >
<SharePoint:SPGridViewPager ID="Grid1Pager" runat="server" GridViewId="Gridview1">
</SharePoint:SPGridViewPager>
</div>
In the cs code:
public void BindGridView()
using (SPSite oSite = new SPSite(SiteName))
using (SPWeb oWeb = oSite.OpenWeb())
SPList lstPages = oWeb.Lists["Pages"];
SPQuery sQuery = new SPQuery();
var ItemsPerpage = PagingItem.ToString();
if (ItemsPerpage == "Fifty" )
sQuery.RowLimit = 50;
else if (ItemsPerpage == "Hundred")
sQuery.RowLimit = 100;
else
sQuery.RowLimit = 10; // default Paging is set for 10
sQuery.Query = "<Where><Eq><FieldRef Name='_ModerationStatus'/><Value Type='ModStat'>0</Value></Eq></Where>";
sQuery.ViewFields = string.Concat("<FieldRef Name='Title' />","<FieldRef Name='EncodedAbsUrl' />");
sQuery.ViewFieldsOnly = true;
DataTable dt = new DataTable();
SPListItemCollection myColl = lstPages.GetItems(sQuery);
if (myColl.Count > 0)
dt = myColl.GetDataTable();
do
Gridview1.DataSource = dt;
Gridview1.DataBind();
sQuery.ListItemCollectionPosition = myColl.ListItemCollectionPosition;
} while (sQuery.ListItemCollectionPosition != null);
Not sure, why the pager is not showing. Total number of records is 110. Rowlimit is 10, so I am expecting Pager.
How to fix this?
Thanks

Answer 1

We need to save the current page info in the view state.
Please refer below links
http://www.codeproject.com/Articles/407558/SharePoint-using-SPListItemCollectionPosition
http://ajamaeen.blogspot.in/2013/02/paging-with-splistitemcollectionposition.html
http://blog.techperspect.com/2011/03/step-by-step-guide-to-implement-paging.html