GridView - How To Get Paging Working
Mar 18, 2010
I'm really struggling to make the leap in understanding to get paging working for my gridview. I am creating a web part in vb.net so have programmatically created all the controls. For development I have an aspx page to view my work. I have created a table with code and then inserted my code created gridview. When i enable paging i get the following error.
at System.Web.UI.WebControls.GridView.get_StateFormatter() at
System.Web.UI.WebControls.GridView.BuildCallbackArgument(Int32 pageIndex) at
System.Web.UI.WebControls.GridView.CreateNumericPager(TableRow row, PagedDataSource pagedDataSource, Boolean addFirstLastPageButtons) at
System.Web.UI.WebControls.GridView.InitializePager(GridViewRow row, Int32 columnSpan,
[Code] .....
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Aug 27, 2009
I have an asp.net gridview that is originally bound to a sqldatasource control, but when the user presses an external button, it instead gets the contents of a datatable rather than a SQLdatasource control. I therefore had to write code in the PageIndexChanging event of the gridview to allow for paging. My code is as follows:
Protected Sub gvEvents_PageIndexChanging(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewPageEventArgs) Handles gvEvents.PageIndexChanging
gvEvents.PageIndex = e.NewPageIndex
gvEvents.DataBind()
This worked beautifully until I added an AJAX update panel so the whole page wouldn't postback every time it paged, and paging stopped working. I debugged it and discovered that it is actually calling the PageIndexChanging event, but nothing is happening. I searched the web and found a few people with the same problem, but their solutions did not work for me. There was one on this site whose problem was solved by the following:
In PageIndexchanging event, where you bind data to grid, make sure, data is again fetched from the DB
I don't know what that means; my data was being bound as demonstrated above. I have "enable paging" set to true and EnableSortingAndPagingCallbacks set to false.
I am including my markup for the updatepanel below.
<asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="ibtnSearch" />
</Triggers>
[CODE]...
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Jun 13, 2011
I'm experiencing a problem when clicking on the page number within my ASP .NET gridview. When I click another page number, I am redirected to another unrelated page within my project.This wasn't a problem until I added jQuery to my masterpage, so I'm guessing there is some sort of conflict in the javascript code. When the aforementioned redirect happens, the page PageIndexChanging event isn't fired and there isn't a postback as far as I can tell. [code]
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Feb 1, 2011
I have a simple query:
Dim info As New SailMembersDataContext
Dim query = From p In info.Individuals
GridView1.DataSource = query
GridView1.DataBind()
How I can add paging to this query for example 10 on a page I have tried to use the built in paging on the GridView but this just produces the error:
The GridView 'GridView1' fired event PageIndexChanging which wasn't handled.
When trying to change to another page.
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Apr 15, 2011
"First, Last, Next, Previous" options to the gridview paging? i can't seem to figure it out. all i can get are numbers and >> for last and << for first...
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Apr 3, 2009
I am using a standart .net 2.0 Gridview which uses an XMLDatasource to populate the Grid. The Data property of the XMLDatasource is set dynamically which allows the gridview to change based on input.All this works fine however I am having problems with paging.I have set the AllowPaging Property to "true" and set the PageSize Property to "10". The GridView populates fine the first time around showing the first 10 records and the number of pages as hyperlinks at the bottom, BUT when i try to click on any of the page numbers to view them a message box pops up saying "Object reference not set to an instance of an object"..[code]
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Sep 22, 2011
I have a .aspx search screen that displays the results of the search in an asp:GridView component. There can be up to approx 1000 records returned by the search. I want to implememt paging on the grid so that only 15 records are displayed at any one time and the user can page through the results.
I am retrieving the records by passing search parameters to a WCF service which returns a List of particular entity objects. I create a Datatable and insert one DataRow per entity object from the List. I then bind the grid view to the Datatable.
This is how my grid is defined in the .aspx page:
<asp:GridView ID="gridCat" runat="server" AutoGenerateColumns="False" DataKeyNames="CatalogueID"
HeaderStyle-CssClass="fieldHeading" RowStyle-CssClass="fieldContent"
[Code]....
Is there a better way to do this (or am I doing it wrong)? If not, which of the 3 options do you think is the best? I'm leaning towards option 2 as I don't think option 1 is performant and I don't want to be sending loads of unnecessary data back to the browser as per option 3.
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Mar 17, 2012
I am a bit lost in concept how to implement what i want to do. I have a gridview, a checkboxlist. I bind the gridview on the page_load. Everytime user choose a checkboxlist, the gridview rebind as well. I have something like this now. This is not the actual code. Thanks so much.
[Code]....
So what do i put here in order to allow paging ? basically, I have 2 datatables in the above example. In the actual code, I have about 5 datatables with 4 checkboxlists. I can't use Datasource control. I need to do it in codebehind as all code already exists.
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May 11, 2011
I have a GridView in a page with paging enabled (sorting not enabled, not used). OnRowDataBound and OnPageIndexChanged events are assigned.
<asp:GridView ShowHeader="False" ID="GV1" runat="server" AutoGenerateColumns="False" OnRowDataBound="gridView_RowDataBound" DataSourceID="SqlDataSource1" GridLines="None" CellPadding="0" PageSize="25" AllowPaging="True" OnPageIndexChanging="GV1_PageIndexChanging">
Datasource is assigned just below gridview as:
[Code]...
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Jul 12, 2009
Here is the asp code for the design, I have a gridview that lists all Leave dates selected w/ 2 radio buttons . The user may choose if it is for whole day or halfday which are represented by a radio button. I want to get the value of each row if the user wants half day or whole day for me to calculate the leave days.
-I can already get the value but on the first 5 rows only since my gridview is paged with paging size of 5. how can i get the value for the other items if I have more than 5?
<asp:GridView ID="gvDates" runat="server" AllowPaging="True"
AutoGenerateColumns="false" OnPageIndexChanging="gvDates_PageIndexChanging"
onrowdatabound="gvDates_RowDataBound" OnRowDeleting="gvDates_RowDeleting"
PageSize="5">
[Code].....
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Nov 4, 2011
I am using Dev Express to develop a form in which i have a GridControl with a View inside a View.It looks like this:
I am then trying to use the event ValidatingEditor to validate the user input.I tried to do that by doing:
Private Sub grvObsAM_Artigos_ValidatingEditor(ByVal sender As Object, ByVal e As DevExpress.XtraEditors.Controls.BaseContainerValidateEditorEventArgs) Handles grvObsAM_Artigos.ValidatingEditor
Dim row As Integer = Me.grvObsAM_Artigos.FocusedRowHandle
This, however always returns me something like -99999.. I poked around and tried this other solution using the sender from the event:
Private Sub grvObsAM_Artigos_ValidatingEditor(ByVal sender As Object, ByVal e As DevExpress.XtraEditors.Controls.BaseContainerValidateEditorEventArgs) Handles grvObsAM_Artigos.ValidatingEditor
Dim grv As DevExpress.XtraGrid.Views.Grid.GridView = CType(sender, DevExpress.XtraGrid.Views.Grid.GridView)
Dim row As Integer = grv.FocusedRowHandle
And using this second solution i managed to get the focused row handle. Even though this worked this time (because the event was triggered by the view itself and i had access to the sender) this doesn't solve my problem as there are other events where the sender is not the view and the problem persists.Usign Me.grvObsAM_Artigos."insert anything here" doesn't seem to work properly.
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Apr 10, 2012
I'm trying to convert an empty string to null when editing a table in my gridveiw. I've tried several iterations and methods with no success. I'm suspecting that the issues is in my ObjectDataSource but don't know the correct syntax I need.
<asp:GridView
ID="grdMyDistributors"
DataSourceID = "srcGetMyDistributors"
[code]....
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May 5, 2009
I have a datatable with verified 10 rows named dtable. I attempt to bind it to my gridview and nothing shows up on my asp.net page. Why do these relatively simple few lines not populate my gridview?
Dim con As SqlConnection = Nothing
Dim dTable As DataTable
Dim dataAdapter As SqlDataAdapter
Dim sqlcmd As String
[code]....
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Sep 10, 2009
I'm trying to create a simple example of an editable gridview, and for some reason can't seem to get the basics working. Why is this example not displaying the label Bar and a textbox when I click on "edit"?
aspx: <%@ Page Language="vb" AutoEventWireup="false" CodeBehind="gv.aspx.vb" Inherits="WebRoot.gv" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-
[CODE]...
code behind:
Public Class MyFoo
Public ReadOnly Property FooVal() As String
Get
Return _val
[CODE]...
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Feb 27, 2012
while configuration sqldatasouce1 IN ASP.NET i used sql statement where sql statement is working well in Test Query THE statement is as follows
SELECT
Name, Gender, Cast, Qualification, Occupation, Country, Age
FROM
Registration
[code]....
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Dec 2, 2010
I am having problems trying to get a rowcommand event to fire in a gridview. The code is below.
<asp:GridView ID="GridViewProducts" runat="server" AutoGenerateColumns="False"
BackColor="White" BorderColor="#999999" BorderStyle="Solid" BorderWidth="1px"
CellPadding="5" CellSpacing="1" DataKeyNames="Pkey"
DataSourceID="SqlDataSourceProducts" ForeColor="Black" GridLines="Vertical">
<FooterStyle BackColor="#CCCCCC" />
<PagerSettings PageButtonCount="20" />
[Code] .....
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Jul 26, 2010
<asp:BoundField DataField="mail" SortExpression="mail" HeaderText="Com Rec">
<HeaderStyle Font-Size="X-Small" ForeColor="White" HorizontalAlign="Left" />
<ItemStyle Font-Size="X-Small" HorizontalAlign="Left" />
</asp:BoundField>
<asp:TemplateField HeaderText="Status Change">
<ItemTemplate>
[Code]...
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Nov 19, 2011
I've spent quite a while searching this problem, there are some other similar threads online but none have helped me fix it.I have a GridView with an ImageButton within it, the imagebutton has an OnClick function but that event is never reached when it is clicked, below is my gridview:
[Code]...
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Feb 5, 2010
I am making use of an ASP.NET Repeater.My Repeater is called myRepeater and I only want to display 20 items per page.Can this be done with a ASP.NET Repeater and if so what changes must I make to my code below? I want to be able to make use of paging. C# example is also fine!![code]
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Jan 7, 2009
I need to quickly fill a datagridview but there are over 10,000 records.What is the best paging solution to use in cases like these ? Should I use a backgroundworker ?
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May 7, 2011
I am giving the Dapper ORM a try. I am able to query data from a table using the code below:
Dim comments As List(Of Comment)
Using conn = New SqlConnection(ConnectionString)
conn.Open()
[Code]....
how to do paging/sorting using Dapper. EF has "skip" and "take" to help with this. I understand that a micro ORM does not have this built in but would like to know the best way to accomplish this.
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Jul 31, 2009
how can i create paging in a grid control let say i have 100 records in the database.. upon loading the data to the 1st 10 records of the query should be shown.. then button NEXT and PREVIOUS provides the navigation.if i press next display the next 10 records, previous will display the 10 previous records
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Apr 20, 2009
I'm writing a small web app in VB.NET and I would like to do paging for my DataTable in the following function :
Public Shared Function Testing(ByVal KeyWord As String, ByVal CurrentPage As Integer, ByVal PageSize As Integer) As DataTable
Dim db As New BibleDataClassesDataContext
[code].....
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Feb 16, 2010
i'm using a datagridview to display the records which are filled in my dataset. however i need to perform paging to display only selected numer of records (e.g: display only 10 records per page) and by using the buttons (like: FirstPage, NextPage, PreviousPage, Last Page) allow users to nevigate through the records. and possibily display the total number of records in my dataset (e.g: |< last <Next 10/100 previous> first >| ) this might sound very simple but i'm new in .net and so far whatever source code i found in google is moslty written in C# which i don't know.
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May 17, 2010
I am stuck at this part where I am unable to allow paging in the datagrid. I have tried this.
<asp:datagrid id="dgReport" runat="server" AllowCustomPaging = "True" PageSize = 5 OnPageIndexChanged="dgReport_Paging"....
and in the code-behind,
Sub dgReport_Paging(ByVal sender As Object, ByVal e As DataGridPageChangedEventArgs)
dgReport.CurrentPageIndex = e.NewPageIndex
bind()
End Sub
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Sep 11, 2009
I am using vb.net code in which I am having a gridview control. Please see the below code
<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True"
AutoGenerateColumns="False" CssClass="innerGridTable" DataKeyNames="OrgID" DataSourceID="OrgGridViewDataSource">
<Columns>
<asp:CommandField ShowSelectButton="True" ButtonType="Button" SelectText="Select"
ControlStyle-CssClass="Button">
[Code]...
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Mar 2, 2010
Is there any provision for paging the picture box?
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Mar 3, 2009
i reading values from MSword an populated the vlaues in Datatable. there is no problem in this. then my datagridview must contain checkbox at the position of second column.so i have created the column programatically. then i have looped the datatable and added the rows in datagridview. [note: i am ot using Datasource Property because i need checkbox column at position.so i create the columns dynamically and add the values].
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Jun 28, 2010
I want to add paging functionality to the datagridview in my windows form. I did a search in google and got some codes too but I am not able to implement in my code as the way I am binding data to gridview is different than the one shown by other codes (that i got from google). I have implemented update and delete also. So I dont want to alter my code but I need to add extra code to implement paging which i don't know.
[Code]...
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Jun 28, 2010
I want to add paging functionality to the datagridview in my windows form. I did a search in google and got some codes too but I am not able to implement in my code as the way I am binding data to gridview is different than the one shown by other codes (that i got from google). I have implemented update and delete also. So I dont want to alter my code but I need to add extra code to implement paging which i don't know.My code for binding gridview is as follows
Private Sub FillString()
If Trim(txtValue.Text) = "" Then
sql = "SELECT * FROM AC"
Else
[code].....
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