How GridView Paging Gets It's Data
Jul 13, 2010
I hoping someone could answer a question for me. I am relatively new to developing web applications with .NET and I have question I can't seem to find a straight answer to. When allowing paging of a GridView control, how does retrieve the data per-page? Is all the data stored into an object, and then displayed x amount of rows at a time? Or, when moving from page to page, is it executing each time but restraining the result to the specified amount of rows?
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Nov 18, 2010
Is there a way to use the GridView paging and having the links not use JavaScript. So that when you click on the page number 5 (for example) that link is a hyperlink.
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Jan 28, 2011
I have a parent gridview5 with child gridview 6, today i deployed it to our dev server and on that server we have alot more records, so for the nested gridviews i need to enable paging on the parent gridview5. Doing so works fine, until i make a selection within the child gridview6, once any selection is made, and i try to page the page throws an error, i have the following bound to the parent gridview5.
[Code]....
[Code]....
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May 7, 2015
In my asp.net Page I am using gridview. I am binding the gridview on page load and on paging event with one method. suppose as Bindgridview1();.
There is one search button for searching the records of user with different method suppose as Bindgridview2(); .
when I am searching the records with Bindgridview2(); paging doesn't work and directly bind with Bindgridview1(); which is on page load when I clicked next page.
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Jan 10, 2011
I'm trying to extend the GridView control to enable sorting and paging for any situation.
When using my control I am fetching data from a database and filling a DataSet with it, then binding the GridView upon every page load. My first question would be, is this the correct approach?
To sort the GridView I am overriding the OnSorting method which stores the sort expression and direction in the ViewState, then creates a DataView and utalises the Sort method to sort the underlying data. It then sets the Data Source to this DataView and rebinds the GridView.
Paging is handled by OnPageIndexChanging which simply sets the PageIndex property and again rebinds the GridView.
My problem is; when any control causes a postback my GridView is no longer sorted, presumably because it is persistently rebound. If I don't rebind it then the GridView is empty on postback since the data isn't automatically stored in the ViewState. I have considered saving the data source in the ViewState but I would assume that this is bad practice for large amounts of data? - also DataViews are not seralisable.
The only solution I can think of currently is to override OnDataBound and sort the data every time. This results in a double sort when paging triggers a postback which seems inefficient. Code illustration of this below,
[Code]....
I'm looking for the cleanest 'best practice' solution as this is a learning exercise more than anything else.
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Jul 31, 2013
My griedview code :-
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" RowStyle-BackColor="Black" Font-Names = "Arial" Font-Size = "10pt"
HeaderStyle-BackColor="Black" HeaderStyle-ForeColor="Black" ForeColor="Black" AllowPaging ="true"
OnPageIndexChanging = "OnPaging" PageSize = "5">
[Code] ....
Error is:- The data source does not support server-side data paging.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception
Details: System.NotSupportedException: The data source does not support server-side data paging.
Source Error:
Line 34: con.Open();
Line 35: GridView1.DataSource = cmd.ExecuteReader();
Line 36: GridView1.DataBind(); Line 37: con.Close();
Line 38: }
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Oct 18, 2010
I had gridview which get data from database according to two event .The first from method ,the second when selected ddl.it worked well ,I made paging and when I go through paging pages I must click two click on number of page to go to this page also all pages get same data for firt page
<aspx>
<div class="div_open_CS m10 ad_mun_font">
<table width="560" border="0" align="center" cellpadding="2" cellspacing="0">
<tr>
<td class="pag_bor">
[code]....
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Jun 23, 2010
GridView: Applying style to certain columns. I add GridView1_RowDataBound() and have the following line:At that time, my GridView did not need to use Paging. Now after I add Paging to my GridView (AllowPaging="true" and I have AutoGenerateColumns="false"), there is an exception for my
GridView1_RowDataBound() as:
ArgumentOutOfRangeException was unhandled by user code
Specified argument was out of range of valid values.
Parameter name:in
How to add Paging to my GridView while I need to have word-break to some of my text columns....
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Aug 24, 2010
how to use pageing in gridview.
i have a grid there we set pageing =ture but when i click index 2 nothing diaplay my code is
protected
{
void ImageButton1_Click(object sender,
ImageClickEventArgs e)string date =
"select srl_no,pmw_timestamp from t_tube_auto_inter where to_char(to_date( PMW_MALFUNCTION_START_DATE,'dd-mm-yyyy'),'yyyymmdd') between to_char(to_date( '" + TextBox1.Text.ToString()
+ "','dd-mm-yyyy'),'yyyymmdd') and to_char(to_date( '" + TextBox2.Text.ToString() +
"','dd-mm-yyyy'),'yyyymmdd')";//ORDER BY PMW_MALFUNCTION_START_DATE " + TextBox1.Text.ToString();
//between '" + TextBox1.Text.ToString() + "' and '" + TextBox2.Text.ToString() + "'";
dt =
{
GridView1.DataSource = dt;
GridView1.DataBind();
}
}
{
GridView1.PageIndex = e.NewPageIndex;
DataTable dt =
new
DataTable();DataAccessLayer.FillData(date, contest);if(dt.Rows.Count>0)protected
void GridView1_PageIndexChanging(object sender,
GridViewPageEventArgs e)//GridView1.DataBind();
}
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Mar 9, 2012
I use gridview in my page and i bound data from sql to my gridview i want use paging
In my grid view i read this article : [URL] ....
But there is dropdown list that we can chang page size i dont want use this drop down . I want use some defult page size for my grid view how i can do it?
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Feb 9, 2011
I'd like to implement a custom paging template for my formview that displays numeric paging as well as next/previous buttons. The pre-defined templates only appear to have numeric first last as an option. Can anyone recommend a good article that covers this?
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Oct 16, 2012
I am using dropdownlist to select whether the gridview should be filled by data arranged in ascending order or descending order with Gridview Paging. The problem i am encountering is that when i fill the data in ascending order it works fine but when i arrange the data in descending order the first page loads fine but the other pages are not filled properly in paging.
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Jul 7, 2010
I have a gridview in a user control which I'm using to display a list of items. The data source is a list of objects (not using ObjectDataSource). I have paging enabled on my gridView. The trouble is that I am forced to rebind my grid in my paging method, otherwise the grid loses all it's data when a user clicks a page button. Is there a good way of binding to an enumerable list such that the values are reused on postback?
[Code]....
protected void gridView_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
BindGrid(); //Not Good. Removing gives me an empty grid.
((GridView)sender).PageIndex = e.NewPageIndex;
((GridView)sender).DataBind();
}
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Sep 27, 2010
I have used objectdatasource with Gridview.
I have total 3000 records in DB.
In gridview settings:
AllowPaging="True",
PageSize="1000"
but on click on page number in the footer the page is changing but data is not refreshing.
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Jan 31, 2011
I have implemented Custom data paging in Gridview with dropdowns for pageSize and pageIndex
Now, I require to made changes to convert this into classic pagination bar at the bottom
I want grid with paging bar like: FirstPage 1 2 3 4 5 6 7 LastPage
find below is the code:
<div>
PageSize:
<asp:DropDownList ID="ddlPageSize" runat="server" AutoPostBack = "true" OnSelectedIndexChanged = "BindGrid">
<asp:ListItem Text = "10" Value = "10" />
<asp:ListItem Text = "25" Value = "25" />
<asp:ListItem Text = "50" Value = "50" />.........
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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 13, 2011
I have a GridView with edit/delete column, label column and DropDownList column. I have a textbox outside the GridView and I want to choose only those rows from the GridView which have for the second column the same value as the value of the textbox while paging.
I wrote code, but I got 0 rows as a result, which is not true.
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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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Mar 27, 2011
i have problem with gridview, gridview paging not working.. i feel so confused about it. coz i think i already using the right code.
this is my code :
detail.aspx
[Code]....
[Code]....
[Code]....
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Jan 28, 2011
I have 3 gridview in my homepage..each one dealing with many rows.
I'm allowing paging in all 3 but its now working
Here's one of the codes:
[code]....
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May 11, 2010
Background of what I have implmented so far:
I've used datagrid view to show a list on records on page, the list contains huge number of records so paging was required. Since the amount of data was huge it was not advisable to bind the grid with complete data. So, I used custom paging and tweaked the sql statements to get page wise data. Now whenever user clicks next or previous data for current page is fetched from the database and gridview is binded with that much data only.
Now I had to add a checkbox column to the grid so that user can select multiple items on multiple pages and perform an operation (for example send email to selected people in the list). I achieved this by making a template column with checkbox control and keeping a boolean column in the datatable which is binded to the gridview. I've also kept a collection selected checboxes so that the state is maintained on every postback.
I've also used ajax so that user cannot see postback happeneing. Everything works just perfect.Here comes the problem:
Now say I have 5 pages of data to be displayed. I select 3 people from first page and move to next page, this will cause fresh databinding and previous data will be lost.Now I go on and select 3 more people from page 2Finally press the send mail button What is expected here is that the mail should be sent to 6 people but details of only 3 people are available because grid is rebinded.
What is the best way to cach data of selected rows in this case. The number of columns is around 20 out of which I show only 10 columns on screen and others are kept hidden. The values of hidden columns are used while sending the emails.
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Dec 27, 2010
We have a page the we have to write where users are shown 'pages' of data from our database they then select the row they want and we take them into another part of the application where they can work with the data.
When we use the built in paging (in the gridview) it is just too slow, as there is too much data.
We have written paging into our stored procedure that gets the data to work around this. The stored procedure works just fine and it is quite fast.
How can I get 'paging' buttons into my gridview when I am not using the built in gridview paging?I can keep it simple if I have to (next and previous only) but it would be better to have a 'first', 'previous', 'next', 'last' type buttons.
I cannot seem to figure out how to get these buttons into the gridview however.
some sample code (preferably vb) that would show this? (or something similar)
Built in paging is not an option.
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Jan 26, 2011
As a part of requirement, I need to bind a table data to the Gridview, but the data content in the table is too large. I need not want to bring in all the data into the dataset, rather I need to bring only the rows that are needed to be displayed(Eg, if the page size is 10, i need only 10 records to be filled in dataset
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Jan 24, 2011
i am create GridView in WebUserControl and and set the AllowPaging="True"din my page is running but the number of page GridView when chose nuber page 1 or 2 or 3the link java
javascript:__doPostBack('ctl00$MainContent$view2$GridView1','Page$5')
why 'ctl00$MainContent$
I
think
the correct sentences
javascript:__doPostBack('GridView1','Page$5')
Server Error in '/' Application.
The GridView 'GridView1' fired event PageIndexChanging which wasn't handled.Description:An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.Exception Details:System.Web.HttpException: The GridView 'GridView1' fired event PageIndexChanging which wasn't handled.Source Error:
[Code]....
Stack Trace:
[Code]....
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Sep 1, 2010
am using vs 2005 and sqlserver 2005.in my database table (name : users) there are more than 10 lac records.i have to display the user details in a grid.if i wrote the sql query as " select * from users" then it is throwing the "System.OutOfMemoryException"So i wrote the query using rownumber (i mean first it will get inly specified no of records ex:25 )so it is displaying only that 25 recordshow to give paging in this situation...?y requirement is in the grid i want to get and display first 25 records with the paging asirst Previous 1 2 3 4 5 6 7 8 9 10 Next Last
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