Does Paging In Gridview Make A Database Call When Its Page Gets Changed?
Mar 18, 2010
When we set allowpaging=true and specify the pagesize=xx, and when we change the page of the gird view then, does paging in gridview make a database call when its page gets changed ?
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[URL]
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<tr>
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Sep 19, 2010
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Apr 7, 2010
Ive added checkbox to each gridview row like this:
[Code]....
I grab value of selected checkboxes like this:
[Code]....
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Probably this is because paging causes postback, but still, is there an easy solution to rewrite my code, so it will work with paging?
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Feb 25, 2010
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key data
1 data1
2 data2
2. data2
2. data2
3. data3
3. data3
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key data
1 data1
EMPTY ROW
2 data2
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2. data2
EMPTY ROW
3. data3
3. data3
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Feb 23, 2011
<PagerStyle HorizontalAlign="Right" CssClass="paging"/>
<PagerTemplate>
<table width="100%">
<tr>
<td style="text-align:left; width:50%">
<asp:LinkButton ID="lnkPrv" Visible="false" CommandName="Page" CommandArgument="Prev" runat="server">Previous</asp:LinkButton>
</td>
<td style="text-align:right; width:50%;padding-left:50%;">
<asp:LinkButton ID="lnkNext" CommandName="Page" CommandArgument="Next" runat="server">Next</asp:LinkButton>
</td>
</tr>
</table>
</PagerTemplate>
Code behind is below
protected void gvProduct_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
Literal1.Visible = gvProduct.PageIndex == 0;
LinkButton lnkPrv = (LinkButton)gvProduct.BottomPagerRow.FindControl("lnkPrv");
LinkButton lnkNext = (LinkButton)gvProduct.BottomPagerRow.FindControl("lnkNext");
lnkPrv.Visible = e.NewPageIndex > 0;
lnkNext.Visible = e.NewPageIndex < gvProduct.PageCount - 1;
gvProduct.PageIndex = e.NewPageIndex;
FillGrid();
}
The code does not give any error. I can see it set the visible property to true/false. But actual control on page remain same (always visible on every page).
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Jan 14, 2010
I have a gridview with paging. I have a style set for a selected row (highlights the row in light orange). What i would like to do is that each time a user chamges the page, the selectedIndex & selectedRow automatically becomes the 1st row of the selected page. So i would like to see the orange highlight on the 1st row of the page to indicate that the row has been selected.
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[code]...
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Jan 1, 2010
I know we can set autopostback property of dropdwonlist using javascript or jquery and it will go to action controller specified in Form tag.
[Code]....
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Apr 14, 2010
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[Code]....
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Nov 18, 2010
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Sep 29, 2010
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Nov 15, 2010
I'm having a bit of trouble with Paging within a GridView grid I have set up. I have added the paging but whenever I click on the next page or the last page buttons, the page refreshes and displays blank (i.e. no gridview but my regular search parameters are displayed.
I was trying to search for a solution throughout the web and came across someone that looked to have the same issue. He moved all of his queries into the Page Load method, and the paging seemed to work. I cannot do this because I have 2 different buttons: Search and My Order, both of which perform different queries based on if a date has been selected or what the search is on (Order Number, License Number, Description, Status, etc).
My paging method looks as follows:
[Code]....
From what I can tell this is an issue with no longer having the data set when making the paging call. Is there anythign that I can do?
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Jan 4, 2011
I have a Gridview all setup and even though I have the paging working it takes select the page twice in order to switch the page. Basically my code is as follows:
[Code]....
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Dec 13, 2010
I have a gridview control on a .aspx page (content form).
Paging is enabled on gridview control. It displays the page numbers at the bottom of the .aspx page. When I click on a page number say 3, I get error saying the "Exception Details: System.Web.HttpException: The GridView 'GridViewReconresults' fired event PageIndexChanging which wasn't handled."
Do I need to write special code to handle the paging? Because there is a grid in another page and it has bound columns and I didn't write any code for paging and it works perfectly fine.
Here is the code in the .aspx page that I have problem.
[Code]...
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Oct 12, 2010
When I load my page I populate my repeater with the following code.
Dim conn As Data.SqlClient.SqlConnection
Dim Comm As Data.SqlClient.SqlCommand
Dim reader As Data.SqlClient.SqlDataReader
[code]...
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Oct 14, 2010
I do long and slow query to get data to my GridView and I got lot of data, but when I'm changing page it loads as slow as at the start, it loads full data again and again, how to load data once and use paging without data loading?
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Dec 30, 2010
I want to display the paging format like 1 2 3 4 5 ....... 20 in gridview pagnation
here total number of pages count is 20.
if user clicks on the 20,then the page no 20 will be display..
and the user cilcks on .....,the next five pages has to display with last page number like 6 7 8 9 10 ....... 20
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Jan 12, 2011
So my problem is as followes:
i have a gridview in another gridview (gv2 inside gv1).
in codebehind, at pageload i have: [Code]....
witch gives me a number of total records in the gv2 to a label. something like a coment number label.
my problem occures when i press the page button (allowpaging = true) on the first gridview. it acts kinda like this:
it makes the second gridview.visible = true; doest string the number of rows, and the label.text = "";
i've tried to make a code like this:
if (Ispostback)
{
gridview1.databind();
foreach ...etc..
}
else
{
foreach ....etc...
}
Also the gridview 1 and 2 the datasource is an SqlDataSource.
but that didnt work . also tried some things in pageindexchanged and pageindexchanging but still no efect :(. and also tried with enableviewstate = false / true on both gridviews with diferent combinations, but still no luck.
the code works only when i have allowpaging = false, or when im on the first page of the gridview (for the first time) is that the number of coments is pasted into the label.
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May 7, 2015
I had implemented the Ajax timer control to update Gridview data(along with Progress bar inside Gridview) after some interval of time.Below is the full code:
HMTL:
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
<%--style & Script for progress bar in Gridview --%>
<script type="text/javascript" src="//code.jquery.com/jquery-1.10.2.js"></script>
<script type="text/javascript" src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
<link href="css/jquery-ui.css" rel="stylesheet" />
[Code] ....
C#:
protected void Page_Load(object sender, EventArgs e) {
if (!this.IsPostBack) {
BindGrid();
} }
protected void BindGrid() {
string query = "SELECT * FROM Table";
[Code] ....
It is working fine except that the Gridview paging is taking some time(15-20 seconds) to go to next page.
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