C# - Error In Gridview When AllowPaging = True
Jan 19, 2011
i have gridview in my asp.net webform.
i bind my database to gridview like this:
SQL = "SELECT id,Fname,Lname FROM MEN";
dsView = new DataSet();
adp = new SqlDataAdapter(SQL, Conn);
adp.Fill(dsView, "MEN");
adp.Dispose();
GridView1.DataSource = dsView.Tables[0].DefaultView;
GridView1.DataBind();
and this i put in the gridview: allowPaging = true
its show the data in the grid, but if i press to page 2..3..
and i got this error:
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.
View 2 Replies
Similar Messages:
Feb 24, 2010
It took me a little while to figure this out, but the AllowPaging="true" on the FormView seems to be the culprit. I don't have much experience paging from a FormView, but for this requirement the customers wants this kind of UI.I have a FormView with DefaultMode="Edit", which is bound to an EntityDataSource. One of the entity's properties, "ExternalID", determines whether some of the other properties in the entity are read-only. For example, if IsExternal==null, the FirstName, LastName, and Email fields should be rendered as TextBoxes. If IsExternal!=null, the 3 properties should be rendered in Label controls.
View 2 Replies
May 7, 2015
I am using a grid view and a textbox(out of gridview to display the total rows in gridview) , i am doing Paging in GridView , and pageSize is set to 5 ; so far i did this
protected void ExistingMappedGrid_OnRowDataBound(object sender, GridViewRowEventArgs e)
{
totalRowsLabel.Text = "Total " + ExistingMappedGrid.Rows.Count + " records.";
}
it shows the number of records , but not total ! it shows only the records displaying on the page .
e.g.
if i have a total of 8 records , not page index works and shows 5 rows in gridview and other 3 rows on 2nd page index , but if on first instane page shows 5 records in gridview then textbox shows 5 and when i click on second page index it shows 3 rows ( THAT"S NOT WHAT I CODED AND NOT NEEDED ) i want total rows to be shown
View 1 Replies
Feb 22, 2011
From what I can tell, the main purpose of a PagedDataSource is to allow paging of a datasource before being bound to a server control.
If this is the main purpose of this control, why is the AllowPaging attribute's default value False?
I'm only asking as often I will forget to set this as True causing confusion when it doesn't work.
View 1 Replies
Mar 25, 2011
Everytime I compile my asp .net project it states the following:
'Sessions' does not contain a definition for 'Select'.
In the page this happens on if I change something put it back and save and re-compile it tends to go ok, but at the moment it is happening every time. It does contain a definition for Select I can type it in plus the page does not show an error where this code is and works when it does compile ok?
View 1 Replies
Feb 3, 2011
I am getting the following error as Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation. when an invalid value is passed in dropdown with autopostback=true. What should I do. I want the solution with "EventValidation=true" and "ValidateRequest=true" in the Page directives. Also without any Custom Error Pages Enabled in web.config file i.e Custom Error Pages are off in web.config file.
View 3 Replies
Nov 3, 2012
I've a class named baseClass.I can't access session variables from that class.This is the error i've got.
Session state can only be used when enableSessionState is set to true, either in a configuration file or in the Page directive. make sure that System.Web.SessionStateModule or a custom session state module is included in the <configuration><system.web><httpModules> section in the application configuration.
View 1 Replies
May 7, 2015
I have uploaded a excelsheet to datatable and that datatable is bound to gridview.there is a save button present,i want to click the save button and all the gridview data will save in database.but that gridview has no boundfield or templatefield.
View 1 Replies
Jul 22, 2010
I have a dropdown list where the user can select a name, on change event populates a Session variable and at the same time populates a formview with the full record detail. I want to add a List Item that states "Select Name" but when I add this the page errors. Input string was not in a correct format.
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.FormatException: Input string was not in a correct format.
Because the value returned from the dropdown list box is a string and not a numeric equal to the first name in the list.
AppendDataBoundItems is = true
AutoPostBack is = true
because I want to update the page as a differnent name is selected. I guess I need to not load the form until an actual first name is selected. Uncertain how to prevent the Formview from loading at page load an until a name is selected and not when the dropdown is set back to "Select Name"
View 10 Replies
Feb 5, 2010
ASP.NET 3.5 SP 1 Following code in ASPX:
<asp:Button
ID="calcShipping"
UseSubmitBehavior="false"
Text="Calc Shipping Costs"
OnClick="calcShipping_Click"
runat="server"
/>
<asp:Button
ID="submit"
runat="server"
Text="Submit Query"
/>
Renders like this in HTML (I find this to be correct):
<input
type="button"
name="calcShipping"
value="Calc Shipping Costs"
onclick="javascript:__doPostBack('calcShipping','')"
id="calcShipping"
/>
<input
type="submit"
name="submit"
value="Submit Query"
id="submit"
/>...........................
View 2 Replies
Jan 25, 2010
I have a gridview that I need to get the width of columns for after the gridview is databound. I have to have AutoGenerateColumns=true because the columns for the datatable that the gridview is bound to is not going to be fixed. The problem I'm having is the gridview columns collection is not populated when AutoGenerateColumns is true. Is there anyway I can get the width of each column after the gridview is databound? I've tried using RowDataBound and going through the tablecells but the width is 0 for every column.
View 2 Replies
Aug 20, 2010
I have a gridview and in this grid i allow paging with page size 10.Now I want to find the total number of records on every page index.For example on page index 1 I have 10 records and on page index 2 I have 4 record so how do I count the number of record I just mentioned above?
View 1 Replies
Oct 27, 2011
I am trying to retrieve a column name from an autogenerated gridview. I want to test for a field name (if FieldName = "whatever" then do something) The major problem is that indexes and field names are all sort of locked away when you auto generate your gridview (autogenerate = true) Unfortunately since I am using the gridview to display the results of different queries (different number of columns and column types) changing auto generate is not an option.
The question is, based on what I have got so far how would I capture a field/column name. I figured out how to get the column index but am stuck on the column name.
Code:
Protected Sub GridViewList_RowDataBound(ByVal sender As Object, _
ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) _
Handles GridViewList.RowDataBound
Dim vColumnCnt As Integer = -1
For Each vCell As TableCell In e.Row.Cells 'GridViewList.Rows(0).Cells
vColumnCnt = vColumnCnt + 1
Next
e.Row.Cells(vColumnCnt).Text = Server.HtmlDecode(e.Row.Cells(vColumnCnt).Text)
End Sub
View 15 Replies
Jan 12, 2011
how to set paging and sorting to true in gridview
[Code]....
View 4 Replies
Feb 2, 2011
I am using a gridview with EnableSortingAndPagingCallbacks set to true and need to run some javascript after a Paging / Sorting callback.Normally this does work with ScriptManager.RegisterStartupScript, but not when EnableSortingAndPagingCallbacks is set to true.
View 1 Replies
Mar 16, 2011
I have autogeneration of fields enabled. I do all the foramatting and other things in the RowDataBound event.
I query the database and get alot of fields. From those fields i make a new datatable with only my 4-5 fields. Remaining fields are used some where else. I am generating the new table like below:
[Code]....
Now as you can see in the code. If i run the code and enter the gridSorting event then e.SortExpression = [Column Name] whereas i want the original column name like e.SortExpresson = [Column_Name]. How can i achieve this ?
View 5 Replies
Aug 20, 2013
I want to freeze my Header columns when Autogeneratecolumns=True.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
[Code] .....
View 1 Replies
Dec 31, 2010
I have a problam in Gridview paging.
I create a gridview with 2 boundfield and check box in tamplet field. and allow paging True.
I maintaing a Chekcbos status while page index change. Its fine But
I have a button outside gridview to store a data in DB.
Now i want that on button clicking all selected Chekbox rows to stored in DB.
Means Gridview loop like
Each page each row if find checkbox selected pick this row store in DB .
View 4 Replies
Apr 16, 2010
how do i check if gridviewrRow is selected ... ?
like when you load the page at first you not on eny row ... you need to select ...
how do i check if a row has been selected (eny row);
View 2 Replies
Dec 15, 2010
if it's possible to use the Gridview (SQLDatasource) UpdateCommand to actually perform an INSERT and not a true update.Here's the dealUsing a Select statement in my SQLDatasource,I'm retrieving records for which there are no History records for a specified period.(Essentially, I'm asking "Show me all records for which there are no historical records within a specified range").I'm using that result set to feed my GridView. Basically, I'm displaying all I need to know about the insert records sans one piece of info.When the user choose the "Edit" button, the row goes into edit mode.Using a template field, I've created a drop down box to allow the user to input the status of the data for that particular time period.When they click the save button,the idea is that the UpdateCommand will fire.However, when I click the save button (in edit mode),I get a postback error that tells me System.Data.SqlClient.SqlException: Must declare the scalar variable "@EQP_PK".
[code]...
View 6 Replies
Apr 30, 2010
i have code to update multiple rows in a gridview. What I want is that if the row value is = 1 in the database then the row is checked otherwise it's not. I've put some pseudo code in below to illustrate what I want to achieve.
[code].....
View 3 Replies
Dec 23, 2015
I want to rename some or all column name header of datatable. How can I done it in loop.
For example datatable has 3 column A,B,C I want to rename it 1,2,3.
I don't want to hardcord it.. Can it be done if I mention somewhere what column to replace with which one and done thru loop.
View 1 Replies
Jun 29, 2010
I've GridView with Template field as
<asp:TemplateField HeaderText="Review">
<ItemTemplate>
<asp:ImageButton ID="imgBtnReview" ImageUrl="~/images/agt_reload.png" runat="server" Visible="false" CommandName="Review" CommandArgument='<%#Eval("id")%>' />
</ItemTemplate>
</asp:TemplateField>
Gridview is bound to a table. If a row in table has price greater than zero then the above mentioned Imagebutton should br visible in that row only.
Is it possible to do so.
View 6 Replies
Feb 2, 2010
i am developing an application using ASP.NET with C#.net. in my application i have a gridview contains 3 fields.
1.description
2.unitprice
3.Regions
these three are template fields and last field i.e Regions is set to visible false.
code is
[Code]....
when the grid is binded,i am not displaying the regions field as that is set to visible false.
when i click the edit button i.e in RowEditing event of grid i have to show the Region field.
for that i had wrriten the code as
gvoptProgramdetails.Columns[2].Visible = true;
when i run the application and when i click a perticular row of edit The region field is set to visible to all rows which are there in gridview.
my requirement is i have to show the region of perticular row in gridview which i have selected.
View 2 Replies
Feb 10, 2014
I am trying to add dynamically gridview (headerstylewidth, back-color, height, etc…, itemstyle width, back-color, height, etc…), in codebehind but I am receiving this error:
Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index
See the code:
<asp:GridView
runat ="server"
ID="gridview1"
Height="175px"
Width="750px"
GridLines="Both"
onRowDatabound="gvdata_onRowdataBound">
[CODE]..
View 1 Replies