I'm using a datapager control on my listview to perform paging in it.When paging through the table, I need to perform some validations. When these validations are not successfull, the paging should be cancelledI currently perform the validation in the PagePropertiesChanging event of the ListView, however, the arguments do not provide a Cancel property.
[Code]...
I'm using a datapager control on my listview to perform paging in it.
When paging through the table, I need to perform some validations. When these validations are not successfull, the paging should be cancelled.
I currently perform the validation in the PagePropertiesChanging event of the ListView, however, the arguments do not provide a Cancel property.
protected void MyListView_PagePropertiesChanging(object sender, PagePropertiesChangingEventArgs e)
{
if (!Validate())
{ // cancel the paging action}
}
I was wondering if there were any decent tutorials on paging the records in a ListView using a DataPager (Pager Control). I can get it to work with Drag and Drop but I can't seem to find a decent tutorial on doing it programmatically.
View 1 RepliesI am using a LINQ to SQL data source for a ListView and perform a validation check in the Listview ItemUpdating event:
[Code]....
This works great and keeps the user from updating the record with invalid data.However, when I hit cancel after this operation, it saves the text in the box rather than cancelling the operation. Here's my code for the update button:
[Code]....
Update Function:
[Code]....
I do not handle the cancel button event, as the cancel operation has worked fine... unless someone enters incorrect information and e.Cancel is set to true.What am I doing wrong? Is it the mixture of using the LINQ Datasource and doing my own updating?
i have a listview to show some data and with it i have a datapager the datapager is used for allowing change pages between products but i have and hyperlink above product image that allow to see the specific product details but the datapager wehn a used clicks to see product details should not be visible because there is no more pages , its a specific product but the datapager should be visible in the other scenario how can i do that?
View 2 Repliesi am applying paging in list view. i used data pager control. but problem is on click of next page next data is not displaying only showing previous data. i have one dropdown i am bing list view on dropdownindex change event not in page load.
<div id='main-content' style="overflow: auto; width: 100%" class="printable">
<asp:ListView ID="LSVAllSlips" runat="server" GroupItemCount="2" GroupPlaceholderID="groupPlaceholder1"
ItemPlaceholderID="itemPlaceholder1" OnPagePropertiesChanged="LSVAllSlips_PagePropertiesChanged">
<LayoutTemplate>
<table>
<tr id="Tr1" runat="server">
[code]...
I am having trouble finding how to solve the following issue :
I am using nested listviews to display Sales and Sales details.
The main ListView displays General Information about Sales and the child ListView displays the detailed information about one sale. the child listview is shown only when the user clicks on a link (see included code, DataBind is made on PageLoad) :
ASPX Markup Code :
[Code]....
C# Behind Code :
[Code]....
If I removed the datapager part, I can manage show/hide the child list view on the button click event. but if I want to use the DataPager with the PreRender event handling, the child listview is not longer shown on button click.
I have a listview control and a datapager control in a ascx page, this is then embedded in the aspx page.
When my page loads the records come up, and the page numbers appear in the pager, however, when I click on any of the page numbers, the page is always blank, no records.
Im pretty confused on this and would appreciate any suggestions.Im trying to implement custom paging because my database has some 400,000ish records and i want to show 20 at a time in a gridview. I don't want to use a datasource in the html because this gridview gets populated using a dataset in the .cs (c#) because
the user first filters on params. I have two sp (on to get the total record count and one that filters). Both sp work.
[Code]....
and...
[Code]....
Does anyone know how i can tell my gridview (and if i need to implement a datapager) the total number of records, to get the page numbers on the bottom correct and then pass the parameter @PageNum @PageSize@sortExpression?
I have a listview and a datapager for it c outside of the listview. I would also like to add a datapager in the GroupSeparatorTemplate. I have added it, but when I try to go to the next page of the ListView the page takes a long time to do the postback and, at the end, it doesn't go to the next page.
<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>.............................
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]....
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?
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]....
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
I want to compose data myself without using any DataSources. I want to display it in ListView. How to implement the DataPager to function properly? I tried implementing PagePropertiesChanged of ListView, but it doesn't work.
View 2 RepliesI have a page (with a master page) with a listview and a datapager on it.The datapager is under the listview in a div element.For some reason, when the page is rendered, the datapager is rendered out side the ContentPlaceHolder of the master page and I get a large space that shouldn't be there.I also have a datapager on my master page. Does it matter?
View 1 RepliesI have a page where I use the ListView and DataPager.My listview is populated as a table where each row has a bit data a dropdownlist with some values and a link button. Now I am trying to pick out the selected value from dropdown list when I kick on my linkbutton. As long as I'm on page one, everything is woriking fine. But if I go to page three then I can not pick out the value I selected in the dropdownlist. I have tried to add a textbox in the listview and then I am able to get the value out I typed into the textbox independent which side I'm on.
Why can I pick out the value from textbox but not the selected value in dropownlist?
Here is a piece of my code:
[Code]....
I want in my datapager to have something like displaying (page x of xx). I have done a research and I found this code which in C#.
[Code]....
But the problem is, my site is using VB as the code behind and I don't know how to convert it to VB code.I have tried using [URL] but it does not work.
I have a listview control which is created dynamically, it is nested inside a repeater's itemtemplate. I'm trying to attach a datapager to it, which is also created dynamically but the datapager will not display and the listview will just display all its records in its entirety.
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There have been a few datapaging questions tonight, but mine is a bit different..
I have a regular datapager, in a seperate project it seemed to work fine with the same query and templates, but when I use it in my page, whenever the I try to page I get the emptydatatemplate when there should be data..
Here is my current ListView
[Code]....
I have tried binding data OnPreRender and setting the page properties under the OnPagePropertyChanging events.. still only getting my empty template whenever i navigate through the pages when there should be plenty of data..
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.
View 6 RepliesI have a ListView that uses an ObjectDataSource
When I add a DataPager control INSIDE the ListView, it works fine and the ListView's PagePropertiesChanging event fires.
When I move the DataPager OUTSIDE the ListView control and set its PagedControlID
to the ListView, it stops working and the ListView's PagePropertiesChanging event no longer fires.
i.e. This works (and the ListView's PagePropertiesChanging fires):
[Code]....
I have ListView control on my page, and i bound it to Dictionary<string,DataTable> generic.Now i'm trying to put DataPager on my page to support paging, but DataPager doesn't work properly, in particular, I have to click twice to move to next page, or first few records repeating thru every page. What's the problem, what am I doing wrong? I used ListView control before with ObjectDataSource and it worked just fine. Now I'm using Entity Framework to retrieve data frm Db.
View 1 RepliesNow, I have a ListView populate products from LinQ DataSource, and a DataPager, when I load the page, it load page 1 of products(I have many pages of products), how can I acess a specific page (page number 2 for example) when I load page.
View 4 RepliesI'm using a ListView to populate products data from LinQDataSource and using a DataPager for paging.
When I choose a product from page 2 and put it into cart then I go to cart, if I click on "Continue shopping" I want to back the page 2 contain product I've just selected before.
How can I do that?
Here is my code snipet:
ASPX File
[Code]....
CS File
[Code]....