MVC :: Page Index Changing Is Not Work Well?
Aug 5, 2010
I m new to MVC. Now i m need to integrate listview in my application, its done. but in that i need update paging. I searched some sites , but i didn't get well. i got some code as below
================================================================
<asp:ListView ID="UsersList" runat="server">
<LayoutTemplate>
<tr id="itemPlaceHolder" runat="server"> [code]...
It shows the paging well but page index changing is not work well. what is wrong in my coding? or missing any code? or need more?
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May 7, 2015
I have manually databinded my gridview , but problem is it won't show 2nd page index .... here's a chunk of code :
<asp:CheckBox ID="SARecords" OnCheckedChanged="SARecords_OnCheckedChanged" AutoPostBack="True" CssClass="tooltips" data-original-title="View all mapped phases." data-rel="tooltip" data-placement="top" runat="server"></asp:CheckBox>
<asp:UpdatePanel ID="ExistingMappedUpdatePanel" UpdateMode="Conditional" runat="server">
[CODE]....
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Dec 27, 2010
I've a gridview control that has paging enabled. The control works completely fine in IE. However I was shocked to learn that the same page is not working on firefox i.e when I click on a page index the grid doesn't show selected page's data!
The page is posted back when I click a page index, I've checked it in debug mode as well. However the code for "Page Index Changing" is never fired!
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Mar 22, 2010
'm using a gridview with paging and sorting in asp.net (language = VB).The gridview shows all the artists in my database. I've added a searchbox above my gridview, so users can search for certain artists by name.The search option works. If I enter the name: John --> it shows the artists who have the name John.Now for the problem:If the user filtered the gridview (for eample searching for John) and switches to another page of the gridview, the gridview is again filled with all the artists instead of the artists that are named John.
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Nov 22, 2013
I have a label on my page, and in Page_Load I have
Code:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Label1.Text = "dog"
End Sub
This works when I run it locally, but not when I upload it to my host. The label does not change. what is going on?
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Apr 22, 2010
i have a situation, like this, there is a one data grid, which is empty, in that we can add the values, in that grid was paging enabled, so after the 10 record, remaining values ll be in the next page of the grid, so if i want to view that value, i should be use the paging option, here i m getting proble, becz, here i have use the code
" gvViewGoodsRecive.PageIndex = e.NewPageIndex;
gvViewGoodsRecive.DataBind(); "
but , this is not sutable for my method, becz here i m not getting value from data base, i just add the values without save in the database.
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Sep 14, 2010
My question is probably a simple one to people used to ASP.NET, So here it is:
I have a webform in a master page that has a listbox which populates itself with numbers which serve as unique id for my objects.
The only problem is that the selected index property of the listbox is always -1 and it automatically deselects itself, no matter what I select. I understand that the index is -1 when you havent selected anyhting, but I have. Here is my C# code that I used to test it and my ASP.NET code:
[code]....
I use the first message box to see what the selected index is and the second to check my 3rd items in the listbox is being recognised.
[code]....
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Dec 5, 2013
I have a couple pages that are all pretty similar. Each of these pages consists of some number of views. Roughly speaking the first four views on each page are the same. The first page has a listbox and a textbox, then next several pages have listboxes. Because these views are the same between all the pages, and because the code behind them is the same, I built up the first page and got it working, then copied and pasted the information over for the other pages. The pages all differ in what the textbox does, but the listboxes are all identical in every way.
So, what I am seeing is that the original page works perfectly. When I go to any of the other pages, the behavior is bizarre. I was a bit surprised to find when the SelectedIndexChanged event was raised for the listbox, but it's fine. In the SelectedIndexChanged event, some minor stuff needs to happen as long as the selectedIndex is not -1. I am getting the SelectedIndexChanged event when it should happen. I see this by putting a breakpoint in the event handler. The SelectedIndex is ALWAYS -1. I can't get the SelectedIndex to be anything else, though it works in the original page from which the code was copied.
Naturally, I assumed that I had overlooked some change in the copying and pasting. That doesn't appear to be the case, but it still makes the most sense. The event is triggered by a change in the selectedIndex on the page that is currently loaded. However, the SelectedIndex hasn't changed because it was -1 and is still -1. The SelectedItem is still nothing, as it was before. There also isn't any problem that I can find with the copying and pasting. I even tried renaming two of the listboxes on one of the pages so that they would be truly distinct from the page that was working (different ID, which shouldn't matter since they are different fields). This had no impact. Nothing I can do will cause the SelectedIndex to be anything other than -1.
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Jun 7, 2010
i have a user control that includes a dropdown list its actually a page navigator when the user press next page iam setting the index of the selector to the value of a hidden textbox where textbox is filled from javascript function. ex txtbox initially is 1. then when next pressed it is 2 and so on but when doing postbacks i.e pressing next it is not changing the index although in the debuy its showing its setting to the new value. as if there is something that is reseting it to the initial value after the page loads if i put my method in the prerender method its working fine. but in the page_load method its not updating to the new index changed. i need to put it in the page_load method as i have to register some event handlers for the navigator.
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May 23, 2012
Client side
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" Â
ToolTip="M8 Media Educational Directory" GridLines="None" AllowPaging="True" Â
PageSize = "1" OnPageIndexChanging = "OnPaging" >
Server side
protected void OnPaging(object sender, GridViewPageEventArgs e)Â Â Â {Â Â Â Â Â Â Â
GridView1.PageIndex = e.NewPageIndex;Â Â Â Â Â Â Â
GridView1.DataBind();Â Â Â
}
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May 2, 2010
I have some problem to understand how this example works with the updatepanel. I have put a ListBox4 and a label inside an updatepanel and put the property for the ListBox to AutoPostBack = true; So what I now am trying to do is when I click on the four items in the ListBox, I want the label to update the new String that is clicked in the ListBox. However what first happens when I click the 2:nd item is that I get the error:
Index was out of range. Must be non-negative and less than the size of the collection. I wonder what the correct way is to do this. I am not sure to know what is right here ? I think many example I do will be solved if I learn this one.
[Code]....
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May 7, 2010
this is performance related question. i have gridview and i wrote gridview selected index changing event .In that event i am enable and disable one button out side the gridview..
it is working fine and fast in my local system ..the problem is ,if i upload my application in server ,it takes more time to perform action in gridview selected index changing.how to avoid that problem ?
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Mar 25, 2011
I have already stored value of author id in list item value while page loads. but when I change index of drop down list to view author information error is shown. I tried to debug using check points and it seems Sqlreader isn't reading database second time.
Incorrect syntax near '='..
Here is my code
[code].....
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Jun 4, 2010
I created my page with asp dropdown. On selected index changed I am seeing postback operation on dropdown. I couldn't avoid postback operation of asp dropdown with updatepanel also.
IS there a another way to avoid dropdownpostback operation.
[Code]....
</contenttemplate>
</asp:updatepanel>
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Jan 16, 2010
does it reload the entire page or does it have the intelligence to only send the necessary js to update the needed parts of the page that have changed? if it does the latter that would be a god send, however im probably being dreamful. it probably returns the entire view without any regard, right? edit: answer seems to be no, everything is returned.
edit added: do you think it would be difficult to write a framework where mvc compares last html it output to the current html we want to output, and instead of sending the entire html, figure out what has changed and generate js code that will do the updating as compared to previous html? (presuming nothing was manually changed on the client using js)... maybe an idea for a codeplex project? or maybe something like this exists?
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Jan 8, 2010
I am currently using Visual Studio 2008 on XP Pro SP3. Developing against http://localhost/ everything including debugging works fine.I need a second website on my machine. IIS 5.1 only allows one website at a time so I used the JetStat XP Pro IIS Admin tool to create a second website. This runs by stopping the Default website and starting the other have added the new website name into the Hosts file and mapped to 127.0.0.1.
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Jan 30, 2011
i have the following code:
[Code]....
3 nested dropdownlists SELECTing from DB. So i select the brand, then i select the model and then i select the product and click on SEARCH button.
But when i select thebrand, and then the model, and if i want to change the brand, it does not reset the second and third dropdownlists.
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Mar 5, 2010
I am having a gridview with an object datasource binded in the markup(aspx page).When page loads it directly works fine with all sorting and paging properties.However, i need to filter display on gridview so i have to change the datasource of the gridview on the code behindIt works fine.. i mean the filtering and displaying is good but paging and sorting doesnt work.
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Apr 9, 2010
The problem is accordion's showed on the page, but doesn't works. I try use code of all examples, but the problem is the same for all of them. I don't understand what to do, because the code is the same as in the tutorials. When I click on the pane it doesn't changing/closing/opening. What can it be?
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> [code]....
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Jan 7, 2011
I have this function:
[Code]....
I set itemsRead and startRowIndex in ViewState:
[Code]....
This is my PageIndexChanged event:
[Code]....
My purpose is to modified some data only for current page in a gridview. I call this function in page load and GridView_PageIndexChanged events. When it's called in page load event, it works fine. But when it's called in PageIndexChanged event, only the rows on the first page in GridView are looped through. For example, if I click page 5, the rowStartIndex becomes 100 = 5 x 20 (my pagesize). The if condition becomes itemsRead >= 100 andAlso itemsRead < 120. But after itemsRead is increased to 19, the For each gridViewRow loop stops and the if condition is never satisfied.
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Sep 25, 2012
am creating a web application in using c# with asp.net.
in that am using login page only as normal aspx page. other pages are using masterpage.
when i click logout button in masterpage. page will redirect to login page. after that if i click browser back button it was moving to previous page. how can i prevent this.
am using this following code in master page aspx page. And My log out button code is below.
<%if (!Page.User.Identity.IsAuthenticated)
{ %>
<script type = "text/javascript" >
function preventBack() { window.history.forward(); }
setTimeout("preventBack()", 0);
window.onunload = function() { null };
</script>
<%} %>
But exactly what i need is once if login page loaded or logged out then it wont go to previous page.
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Mar 26, 2010
In my web form, i have 2 drop downlist controls. eg. dropdown1 and dropdown2. I will change the dropdownlist1 item, consequently selectedindexchanged event fires and reloads the dropdownlist2 items. And i have another button also in order to get the result based on the dropdown1 and dropdown2. Lets say for example, i have a list of countries in dropdown1 and a list of states in dropdown2. I selected "India" in dropdown1 and correspondingly "Tamilnadu" in dropdown2. And then click a button which calls the dataset based on dropdown1 and dropdown2. The problem i face here is, whenever i click on the button to load the dataset, dropdown1 value remains the same as the dataset is not called again, whereas the dropdown2 value changes to the first one as it gets called automatically during postback. For your information, I have loaded both the lists in the page load using (!IsPostback) property.
My coding is as follows:
protected void Page_Load(object sender, EventArgs e)
{
try
{
if (Session["sesUserName"] == null)
{
Response.Redirect("sessionExpr.aspx", false);
}
else
{
lblStatus.Visible = false;
pnlEvaluate.Visible = false;
if (!IsPostBack)
{
fnLoadDropDown1();
fnLoadDropdown2();
}
}
}
catch (Exception ex)
{
throw ex;
}
}
public void fnLoadDropDown1()
{
dsLoadDD1 = objWebRef.fnLoadOnlineTest();
if (dsLoadDD1.Tables[0].Rows.Count > 0)
{
ddTestTitle.DataTextField = "vchTestTitle";
ddTestTitle.DataValueField = "intTestID";
ddTestTitle.DataSource = dsLoadDD1.Tables[0];
ddTestTitle.DataBind();
}
}
public void fnLoadDropDown2()
{
dsLoadDD2 = objWebRef.fnLoadOnlineTest();
if (dsLoadDD2.Tables[0].Rows.Count > 0)
{
ddUser.DataTextField = "vchUser";
ddUser.DataValueField = "intUserID";
ddUser.DataSource = dsLoadDD2.Tables[0];
ddUser.DataBind();
}
}
protected void ddTestTitle_SelectedIndexChanged(object sender, EventArgs e) ...................
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Dec 17, 2010
I have a gridview which is fairly straight forward... I've added paging to the gridview which functions correctly. However, after clicking any one of the page buttons (next page/last page), it appears some sort of a label is being displayed in my web form saying "NewPageIndex: 1". This changes from page to page displaying the actual index of the page. Why is this displaying? The only thing i can think of is the size of my gridview (Right now set to 1500 lines per page) . here is my gridview control html code:
[Code]....
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Jul 18, 2012
I have 2 DataGrid in a single page.
First DataGrid contain 2 page and 10 records per page
Second DataGrid contain 5 page and 10 records per page
When i click 3rd page of second DataGridthe following error occur
"Invalid CurrentPageIndex value. It must be >= 0 and < the PageCount."
public partial class Admin_Over_all_report : System.Web.UI.Page {
Dataconnection dc = new Dataconnection();
protected void Page_Load(object sender, EventArgs e) {
if (IsPostBack == false) {
bind();
[Code] ....
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Dec 23, 2010
Following is the structure of the pages in application
[Code]....
Suppose the user is on ..../paycheck.aspx which is the content page. But when ...../paycheck.aspx loads, "lnkDynamic" properties "Text and PostBackUrl" must be set. Which events should be handled .....
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