Forms Data Controls :: How To Set The Datapager PageSize Programmatically In The Code Behind (vb)

Mar 13, 2011

how to set the Datapager PageSize programmatically in the code behind (vb)?

here is my datapager asp(.net) code:

[Code]....

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When (in what event) is the best time to set PageSize for the ListView's DataPager? I have tried every event on the ListView and either it does not work (i.e., reverts to the default 10) or I get a CRASH of some sort (mostly error 12002) - but that's a different story.

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I have some doubt about GridView PageSize, for the example if my table have more than 100000 rows and i set PageSize=50, i can see GridView trying to download whole 100000 rows and display only 50 records with pagewise.

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I have developed a application using Visual Studio 2008 and SQLServer 2008. I have a page called "Billing Center" where i need to display more than 500 records in a gridview and the gridview has sorting enabled. If i limit the page size upto 10 only the gridview performs well but user requirement is to view atleast 500 records at once which is slowing down the gridview record retrieval process.

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[Code]....

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We can have a look at this link:

http://marss.co.ua/DropDownListInPager.aspx

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If navigating to the last page and then selecting some more search criteria to perform another search the pager returns no records found, the record counts etc hold the previous search result counts and it is not until the search button is clicked again that the expected results are rendered.

All works correctly now, as intended after reverting back to framework 3.5.

<div id="divPagerTop" runat="server">
<asp:DataPager ID="DataPagerTop" runat="server" PagedControlID="lstResults">
<Fields>
<asp:TemplatePagerField>

[Code]....

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.newdiv
{
height:500px;
width:500px;
}
<div class="newdiv">
<asp:ListView DataSourceID="SqlDataSource1" ID="productlist" runat="server">
<LayoutTemplate>
<asp:DataPager ID="DataPager1" PageSize="4" runat="server" PagedControlID="productlist">
<Fields>
<asp:NumericPagerField />
</Fields>
</asp:DataPager>
</LayoutTemplate>
<ItemTemplate>
</ItemTemplate>
<EmptyDataTemplate>
<div>
Sorry no data found
</div>
</EmptyDataTemplate>
</asp:ListView>
</div>

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I'm trying to populate the DataPager using Container.DataItem (I'm not allowed to use FindControl) but I get this error

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The code:

[Code]....

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it shows something like Page
0 of
0 (
0 records).

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<div id="paging">
<div>
<span><asp:Label ID="lbl_paging" runat="server" EnableViewState="false"></asp:Label> </span>
<asp:DataPager ID="dpAccommodations" runat="server" PageSize="6" PagedControlID="searchresults" EnableViewState="true" QueryStringField="page">
<Fields>
<asp:NextPreviousPagerField ShowNextPageButton="false" ShowPreviousPageButton="true" ButtonType="Link" PreviousPageText="Prev" NextPageText="Next" RenderDisabledButtonsAsLabels="true" RenderNonBreakingSpacesBetweenControls="false" ButtonCssClass="prev"
/>
<asp:NumericPagerField ButtonType="Link" CurrentPageLabelCssClass="pager" RenderNonBreakingSpacesBetweenControls="false" NumericButtonCssClass="lala"/>
<asp:NextPreviousPagerField ShowNextPageButton="true" ShowPreviousPageButton="false" ButtonType="Link" ButtonCssClass="right on" NextPageText="Next" RenderDisabledButtonsAsLabels="true" RenderNonBreakingSpacesBetweenControls="false"/>
</Fields>
</asp:DataPager>
</div>
</div>.............................

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I have a listview in a page and I use a DataPager to do the paging. Each time the user clicks a page's number, the page does a postback and it shows the next "x" items. My problem is that I rewrite the url with isapi rewrite and when the user is being redirected to the second, third etc page of items the friendly url is being replaced by the non-friendly url of the page.

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I am trying to use the photo_id of a picture whilst a user uses a datapager to select different images. I am also getting the photo_id of the pictures through a label within the listview. However now i need that value so i pull out comments from another table according to this photo_id..

I currently have th following code:-

[Code]....

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Forms Data Controls :: DataPager On ListView Not Working?

Jun 7, 2010

I have a listview where it's content is from a datatable. Programmatically, when the user goes to the webpage, the listview is binded to a datatable like so:

[Code]....

I want to now add a DataPager but this code isn't working:

[Code]....

Clicking on the page numbers either has no response or clears out the listview or distorts the data.

What can I do to make DataPager behave correctly?

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Forms Data Controls :: DataPager Not Working With Listview?

Mar 4, 2011

I have a Listview Control and the paging is implemented using the DataPager control.

I have set the maximum pagesize=5 of the datapager.

But when I click the next or previous buttons it loads the same set of products, no matter how many times I click on the next/previous buttons,

[Code]....

And here is the code behind file

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;

[Code]....

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Forms Data Controls :: Listview And DataPager Not Playing Well Together?

Oct 8, 2010

environment: VWD 2010 Express, SQL 2008 Express, .NET 4.0, VB

I have a page with 4 radio buttons followed by 3 cascading ddl followed by a tab container with 5 tabs. Each tab holds a listview, etc that is particular to the group that has access to that tab. On page load I filter the listview based on who is logged in plus which radio button and DDL is selected - all ok so far.

after the page load, the initial datapager works fine and all other listview functions are fine. However, if I select the 4th radio button, the data returned is correct and the datapager shows as if it knows the correct number of items but if I click the datapager page 2 (or Last, etc) it immediately reloads the correct data as if it were a new page load (and changes the datapager appropriately). My suspicions are that this is due to the declarative select command defaulting to the data that it always goes back to.

I have tried to move the select to the code behind and played with the tabcontainer prerender event. That eventually got me to the point where the datapager was working properly but then I could no longer edit any of the dropdowns in my listview edit screen where I could before. They would go through the motions but as soon as you selected a new dropdown value, it would revert back to whatever it was before.

So at this point I'm looking for ideas on how to make these work together.

the code is excessive so I will avoid that for the moment until I can whittle it down to what is pertinent

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