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 ?
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May 4, 2010
Currently I have something like this, but when I click "update" the record doesn't get updated (but no error is returned).
[Code]....
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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
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Jan 15, 2010
I have a class Myclass with variables a,b,c,d. I declare a List<Myclass> lst = new List<Myclass> (); And I pass it to gridview as gridview.datasoure = lst; The question is the gridview will show a,b,c,d at all. How can I just show a in gridview, andnot show b,c,d in gridview?
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Oct 29, 2010
[Code]....
Main Gridview[Code]....
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Mar 13, 2011
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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.
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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.
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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]...
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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 ?
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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.
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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]....
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Jul 9, 2010
how to implement Insert feature to a grid view?I need to use fields with scroll bar inside of a grid view. Is that possible through the template field?
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Mar 8, 2011
I have one filed that is encrypted using Rajindal algorithm and stored in MSSQL db.When I retrieve that column in gridview it's displayed in encrypted. I have the code that decrypts it but the problem is:How can I all loop throw this column values in the gridview and decrypt them all and display it in the gridview decrypted.See my code below:
[Code]....
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Aug 21, 2012
I have a doubt and i am sending you the details below, what i want to display in Gridview.
below i am describing the sql Table Structure.
Original Table Structure.
ID Date TimeLogged(Hrs) UserName
1 10/8/2012 5.50 Bubai
2 11/8/2012 2.30 Bubai
3 10/8/2012 3.30 Bhanu
4 11/8/2012 7.30 Bhanu
I want result like below. User Name should be dynamic. May be lot of users. User name will come from Database table.
i want to show details in Gridview(Front End).
Date Bubai Bhanu Total
10/8/2012 5.30 3 8. 30
11/8/2012 2.30 7.30 10
Total 8 10.30 18.30
I have a doubt and i am sending you the details below, what i want to display in Gridview. below i am describing the sql Table Structure.Original Table Structure.
ID Date TimeLogged(Hrs) UserName
1 10/8/2012 5.50 Bubai
2 11/8/2012 2.30 Bubai
3 10/8/2012 3.30 Bhanu
4 11/8/2012 7.30 Bhanu
I want result like below. User Name should be dynamic. May be lot of users. User name will come from Database table. i want to show details in Gridview(Front End).
Date Bubai Bhanu Total
10/8/2012 5.30 3 8. 30
11/8/2012 2.30 7.30 10
Total 8 10.30 18.30
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Nov 17, 2010
I am having an issue with Listview controll ,It does not show all string ( string could be 50 words), is there a way around this ,I also have ,one item of listview want to be displayed as hyperlinks .
simple code
this is a part of function that call the listview function
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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.
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Mar 11, 2010
I am having some difficulty enabling sorting on a gridview that has data in it that has come from an objectdatasource.
The AllowSorting="True" function doesnt work for ObjectDataSource so I need to find a work around...I am guessing that I will need to do something in code in order to get this off the ground.
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Mar 20, 2010
I have an ObjectDataSource giving me data similar to: OrderNumber OrderDate OrderValue OrderItems The first three are simple data types and the last has multiple occurrences of another class: OrderLineNumber OrderItem OrderQuantity The ObjectDataSource will only contain one row (which might make things simpler). So, there will be one OrderNumber, OrderDate and OrderValue; and then several occurrences of OrderItems (each containing OrderLineNumber, OrderItem and OrderQuantity).
I am displaying OrderNumber, OrderDate and OrderValue in the FormView - that work's fine, as expected. I have placed a GridView within the FormView and am failing miserably to get it to bind to OrderItems. I have tried the obvious things like specifying "odsWhatever.OrderItems" as the DataSourceID for the GridView, but to no avail.
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Jun 3, 2010
I am using ObjectDataSource controll to bind gridview and using custom paging. Everything working fine but the problem arises when last page contains only one record and i try to delete it-- gridview disappear.
Below is ObjectDataSource declaration..It is working fine..only problem is with deleting from last
page which is containing only single record.
<asp:ObjectDataSource ID="ODS1" runat="server"
TypeName="MyClass"
SelectCountMethod="GetDataCount"
SelectMethod="BindData"
DeleteMethod="DeleteData"
EnablePaging="true"
StartRowIndexParameterName="StartRowIndex"
MaximumRowsParameterName="MaxRowCount"
>
<DeleteParameters>
<asp:Parameter Name="ID" DbType="int" />
</DeleteParameters>
</asp:ObjectDataSource>
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Jan 20, 2011
i have been following the asp.net data access tutorials on this site. When i try to update, nothing happens. I believe the problem lies with my wrong coding on the BLL part. I'm using table adapters. Could anyone point out what iswrong with my code or tell my what the correct code is?
[Code]....
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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]....
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