Forms Data Controls :: GridView Bound To ObjectDataSource Not Populating

Jan 28, 2011

VS2010 Ultimate ASP.NET 4.0 Web Appliction project

I have a simple aspx page with a GridView Bound to an ObjectDataSource utilizing a class object that returns a DataView.

There are no errors generated, but the GridView does not display any rows. If I check the return value of the ObjectDataSource in the Selected event in the Immediate window (?CType(e.ReturnValue,DataView).Count), there are 51 rows. However, (?Me.GridView1.Rows.Count) shows 0 rows. The exact same page in VS2008, ASP.NET 3.5 works fine. how to get the GridView to display the rows? What has been done to the GridView in 4.0?

Page and code below -

<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="WebForm2.aspx.vb" Inherits=".WebForm2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">

[Code]....

View 6 Replies


Similar Messages:

Forms Data Controls :: Bound Textbox Not Populating In Gridview?

May 25, 2010

I have a Gridview that has a template field containing a bound textbox (fieldname is 'Status'). I have an extra column containing an update button, which is designed to update the db with whatever is in the textbox.

What's happening is that when I load the form, the textbox is blank, even though there is existing data in the fields. If however I click the update button, all the textboxes in the Status column update and populate with the correct data from the database. I guess my question is why would bound textboxes not populate until an update command is run?

View 19 Replies

Forms Data Controls :: Gridview (bound By ObjectDataSource) Sorting

Aug 31, 2010

I have a gridview being data bound by an objectdatasource which points to a BLL/DAL. I have paging and sorting enabled within the gridview. I have the fields configured in the look/fell I want from a templatefield. This templatefield has the sort expression (date) I want things to be sorted by. All this works as it should and I have no issues with it.But, the issue is that when I click on the header to sort asc/desc by date, I have to click on it twice for it switch to descending order. E.g. I hit the webpage and it lists all the information in the gridview, sorted by date, ascending order. If I want to sort by descending order, I have to click the date header twice in order for the gridview to sort the information in descending order; the clicks cause a post-back and the whole screen is refreshed.

View 2 Replies

Forms Data Controls :: Populating Gridview Bases On Results From Another Gridview?

Jun 14, 2010

I'm not sure how to search for what I'm seeking, so I'm hoping to be pointed in the right direction.

I have 4 gridviews that contain the same 3 rows of data. For each gridview, I need to create a seperate gridview that will do some calculated values on the parent gridview like A3-A1, to put it in spreadsheet terms.

And at the very bottom I will have a total gridview control that will sum up each row from the parent gridviews. And under that gridview a final gridview to perform the A3-A1 calculation.

View 3 Replies

Web Forms :: How To Implement This Feature In Listview Control Which Is Bound To Objectdatasource

Jul 5, 2010

i want to implement this feature in listview control which is bound to objectdatasource... and in on mouse over i have to show the data from database again. when you mouse over the linkbutton then div popup with contents...how to imlement with listview.

link for the feature is

[URL]

View 4 Replies

Forms Data Controls :: Display A One Row Gridview When Gridview Is Bound To Empty Dataset

Jan 13, 2010

If the gridview binds to empty dataset, I need to still show a gridview so that users can ADD more using the textfields in the bottom of the footer template. Since the gridview is empty it won't bind not allowing rendering of the <footer template> I guess I should create a empty dataset if the gridview is empty. How do I check for this and can this be done in GridviewRowEventArgs

View 5 Replies

Forms Data Controls :: Populating A Dropdownlist In A Gridview?

Dec 3, 2010

Here is a snippet of my code...

<ItemTemplate>
<asp:LinkButton
ID="lbEdit"
runat="server"
CommandName="Edit"
>Edit</asp:LinkButton>
<asp:LinkButton
ID="lbNew"
runat="server"
onclick="lbNew_Click"
CommandName="New">New</asp:LinkButton>
</ItemTemplate>

Code behind...

Protected Sub gvPunches_RowEditing(ByVal sender
As
Object,
ByVal e
As System.Web.UI.WebControls.GridViewEditEventArgs)
Handles gvPunches.RowEditing
Dim i
As
Integer = e.NewEditIndex()
Dim ddl
As DropDownList =
CType(gvPunches.Rows(i).FindControl("ddlDiv"), DropDownList)

the question I have is when i enter this procedure in the code behind, ddl is nothing. what am I doing wrong in populating the dropdown for the row I am editing?

View 5 Replies

Forms Data Controls :: Populating Gridview In Multiview?

Aug 14, 2010

i am using multiview and in View1, i have a gridview.i want to populate my gridview as

MultiView1.ActiveViewIndex=0;
this.Gridview1.Datasource=((Datatable)Session[cart1]);
this.Gridview1.Databind();

But it is displaying nothing on browser.

View 1 Replies

Forms Data Controls :: Selected Checkbox In Gridview Should Be Added From One To Other Gridview Using Objectdatasource

Aug 2, 2010

table a
a1 a
1 qw
2 asa

i have two grid views

gridview1 has check box[a1] and one value[a](in total two columns) with objectdatasource1 for datareferencing from database

another gridview2 has to select only the selected/checked value of gridview1 of checkbox1

View 3 Replies

Forms Data Controls :: GridView And ObjectDataSource - Column Is Not Shown In The GridView's List ?

Feb 9, 2011

I'm facing a wierd problem with GridView and ObjectDataSource. I bind GridView to my business objects via ObjectDataSource. Everything was working fine until I decided to add a new field in my buisness object and wanted to add a column to GridView to show it. Somehow that column is NOT shown in the GridView's list of available columns. I have tried refreshing schema, rebinding, etc. I'm using GridView inside a user control which is used as a web part. Does that make a difference ?

View 3 Replies

Forms Data Controls :: How To Get The Row Value Of Gridview Upon Bound

Jul 2, 2010

I got his code for RowDataBound

[Code]....

View 4 Replies

Forms Data Controls :: Gridview Not Populating With Dropdown Values?

Oct 5, 2010

when testing my query in the grid configuration wizard it works fine, but when i run the page it does not.

first - i select values from my cascading drop down list then enter values for two textbox (dates). then when i hit the button to populate my grid nothing is return back.

[Code]....

View 9 Replies

Forms Data Controls :: Populating A Gridview At The Click Of A Button?

Feb 19, 2010

I am developing an application using Sharepoint Designer.I need to retrieve data from a database for display on the screen.The way I am hoping to implement this is to have a Text box from which data is taken and at the click of a button passed to the procedure (which is within script tags) which calls a stored procedure passing it the value entered in the text box.The problem I've having is that the gridview is not displaying anything (i.e. other than text i entered in the EmptyText property of the gridview ("There are no records").
Below is my code

<%@ Page Language="VB" %>
<%@ Import Namespace="System.Data.SqlClient" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-

[code]...

View 2 Replies

Forms Data Controls :: Populating GridView On Separate Page?

Dec 10, 2010

I'm generating a number of calculated arrays in the code behind a ButtonClick event on a particular page. Stuff like:

Dim Delta(,) As Double = New Double(nPer - 1, 0) {}
For i = 0 To nPer - 1
Delta(i, 0) = Delta_Buckets(i, 0) + fwds(i, 0)
Next

What I want to do is convert this to a datatable and use this as a datasource for a gridview in a different page.

View 2 Replies

Forms Data Controls :: Get ID Bound To Label In GridView?

Feb 10, 2010

I have a foreign key (TeamID) in a GridView. I use a TemplateField to display it as the lookup value (TeamName) in a label, and a dropdown for editing. When row is selected and SelectedIndexChanged is fired, I want to access the TeamID. I can get the TeamName from the label. I tried putting the TeamID in DataKeyNames, but that fouled up my dropdown when saving (it reverts to the original value). So, how can I get the TeamID?

View 1 Replies

Forms Data Controls :: Dropdownlist In Gridview Not Populating The Update Parameter?

Nov 5, 2010

during edit mode i populate the drop down in question with data based on a value selected in another drop down also in the gridview, all works find, but the paramater is not being updated with the selected value, i think this is because i do not call any Bind in the aspx side.

<asp:TemplateField HeaderText="Build Types">
<ItemTemplate>
<asp:Label ID="lblBuildTypes runat="server" Text='<%# Bind("BuildType") %>'></asp:Label>
</ItemTemplate>

[Code]....

View 2 Replies

Forms Data Controls :: Populating A Gridview With Data From A Stored Procedure?

Mar 4, 2011

I have a form that has a textbox, a button and a datagridview. The textbox is a parameter of @subschedule. I'm needing to pass the value of the text box to my sql stored procedure and then fill my datagridview with the results of that query.

I have the following code thus far:

[Code]....

View 13 Replies

Forms Data Controls :: Dynamically Populating Fields In A Gridview Depending On Data In A Table?

Jul 17, 2010

I have a gridview that is populating from a SQL DB and working fine. However, based upon certain data I find in fields in the SQL table, I want to place a 'n' or a 'y' in extra columns in the gridview that I am assuming need to be templatefields. My thought was I could maybe add 8 template columns and then I could put a 'y' in the appropriate column based upon the data I find the table. For the life of me, I cannot figure out how to do this. I want to do this at rowdatabound time ( i think) but I just cannot find out how to, in my code, put that 'y' in the columns. Is this the right way to do this or do I need to do it another way? How do I get that 'y' in the proper column?

View 3 Replies

Forms Data Controls :: Edit GridView Row With ObjectDataSource

Sep 21, 2010

I have a grid that receives products over a GetList methods via ObjectDataSource. The Product class contains also a Object Supplier. If I change in the drop down list of the grid the supplier for a product and I click update the ID of the suppliier is still the same. I have debugged the call of the update method and checked the parameter in the product object. I wrote the following code in the SelectedIndexChanged event and the text box shows the right id but not the update method.

DropDownList supplier = (DropDownList) sender;
txtTest.Text = supplier.SelectedValue;

Here is the code of my grid view:

[Code]....

My Object Data Source calls the following Update Method:

[Code]....

The next work around idea would be to call the update method manually in the Update Event of the grid view.

View 3 Replies

Forms Data Controls :: GridView With ObjectDatasource+Update

Mar 19, 2010

Can you post of an example of Gridview with EditItemTemplate using ObjectDataSource as data connectionand Update the the specific row. Ihave lots of sleepness night with this problem.

View 2 Replies

Forms Data Controls :: OnUpdating Using ObjectDataSource And Gridview?

Feb 9, 2010

I've been working a gridview that uses an ObjectDataSource to perform either select, insert, delete or update. I was able to get everything to work correctly with the GridView except when it came to performing an update. My first issue that I came across was that it was tacking on two extra columns or fields that I didn't really expect. The function being called (SavePipelineUser) only expected 4 parameters and was getting 6 in total. This was occuring even though I had placed OldValuesParameterFormatString="original_{0}" or OldValuesParameterFormatString="{0}" within the GridView's attributes.

Ok, So I was able to resolve this issue by going into the OnUpdating event in the ObjectDataSource and doing the following below. This effectively removes the additional parameters from being added. However, I now have a new problem. There doesn't appear to be any values actually being passed into this method. So, while no errors appear, nothing gets updated. Can anyone explain to me why my values are not being carried forward? I've spent about a day and a half working on this issue and was able to get around this by just going with the GridView's RowUpdating event and grabbing values from grid to manually get it to update. While I'm very happy for anything to be working after so much time, I still feel like this is a bad hack for this to work. I have a hard time fathoming why this seemingly simple use of the GridView on my part has turned out to be very complicated. I'm extremely leary now of using the ObjectDataSource object for anything if it's going to be this much of an effort.

<!--html code-->
<asp:GridView ID="gvPipelineUsers" runat="server" AllowPaging="True"
AllowSorting="True" DataSourceID="objCommon" AutoGenerateColumns="False" ShowFooter="True"

[code]...

View 3 Replies

Forms Data Controls :: GridView And ObjectDataSource Filtering?

Jan 27, 2010

I'm using a GridView with an ObejctDataSource. The data is provided by a business object and not a DB. It returns a list of people and each person belongs to a group. Now I need to filter data. For example, I need to return list of people in specific groups. How can I specify a list of groups to be able to filter the data ? Could I use SQL like syntax ? I understand the filter expression works only when data is returned as a datatable. But in my business object I maintain data as hashtables and return as List<PeopleInfo>. Do I need to return list as datatable instead ?

View 2 Replies

Forms Data Controls :: Gridview With ObjectDataSource Not Updating?

Dec 17, 2010

I have a gridview with the ObjectDataSource and the Update does not work. When I click on Edit, I go to Edit mode but Update will not work at all. No errors. I do believe that it is in the RowUpdating method but cannot figure out how to call the method UpdateBook from the BookManager BAL.

BAL BookManager

[Code]....

Gridview

[Code]....

RowUpdating

[Code]....

Put in Breakpoints and it is getting to the RowUpdating but will not update.

View 11 Replies

Forms Data Controls :: Delete Gridview Row With Objectdatasource?

Sep 21, 2010

I get the following error when trying to delete a row in a gridview. The error is strange, since I dont pass 2 parameters as far as I can see.This is the error and the code is below:

Server Error in '/' Application.

ObjectDataSource 'odsRooms' could not find a non-generic method 'DeleteRoom' that has parameters: id, locationid.

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.InvalidOperationException: ObjectDataSource 'odsRooms' could not find a non-generic method 'DeleteRoom' that has parameters: id, locationid.

Source Error: [Code]....

Stack Trace: [Code]....

[InvalidOperationException: ObjectDataSource 'odsRooms' could not find a non-generic method 'DeleteRoom' that has parameters: id, locationid.]
System.Web.UI.WebControls.ObjectDataSourceView.GetResolvedMethodData(Type type, String methodName, IDictionary allParameters,[code]....

View 2 Replies

Forms Data Controls :: Way To Update For A Manually Bound GridView

Mar 3, 2010

I am having a hard time updating from my gridview based the value that I am setting in the datakeynames it is the Ucc field I keep getting and index out of range exception on the e.keys[0]. I have done this before so I am confused what I am missing here.

View 8 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved