Forms Data Controls :: Formview LinqData Source Not Allowing Updates?
Aug 18, 2010
I've set up a formview with a Linqdata source to allow users to edit records. When I run it, edit data and submit, it blows up and tells me "Linq datasource6 does not support the Select property when the Delete, Insert or Update operations are enabled." I googled that warning and saw a couple of posts on this forum saying the problem is the slect statement has to be removed from the Linq data source for it to allow updates.
But if I remove the select statement then how do I show the user specific info on pageload? plus I thought the two way databind was an advantge of the datasource control.
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[code]...
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[Code]....
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[Code]....
Here's the stored procedure...
[Code]....
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Dec 14, 2010
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Nov 5, 2010
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Mar 4, 2011
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Sep 2, 2010
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Feb 8, 2010
So I followed Scot Mitchell's tutorial from asp.net/learn on adding a checkbox column to be able to select multiple entries and delete them with the click of a button. When I make my selection and click the button it works on the database end, as the desired entries are deleted. However, the entries remain on the page after it reloads. if I refresh the page it's updated properly but I'd like it to automatically update after the button is clicked.
Also, I tried his method for adding check/uncheck all buttons to the top of the gridview and they don't seem to be working either.
Here's the code behinf from the gridview page:
[Code]....
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Jun 3, 2010
Updates to the edited item are not passing the new / updated values but rather the original values. And I can't for the life of me figure out why when I change the original value in an edit textbox and post the update the new value is not being passed. I get the original value. Perhaps fresh eyes can spot the problem. This should be super basic but apparently I'm missing something.
Here's the code for the Item and Edit templates. The code behind is below this.
[Code]....
Code behind begins here....
[Code]....
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May 7, 2015
On update the dropdown value shows NULL in database : here's structure for my gridviewÂ
<asp:TemplateField HeaderText="Construction Phase" SortExpression="Phase_Name">
<EditItemTemplate>
<asp:DropDownList ID="EditedDropDownInGrid" runat="server" CssClass="form-control" DataSourceID="PhaseSQLDataSource" DataTextField="pp_name" DataValueField="pp_id">
</asp:DropDownList>
</EditItemTemplate>
[Code] ....
It updates other controls in gridview but does not update my selected dropdowns item value in Integer format which is inside gridview...
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Feb 10, 2011
How to edit gridview row when not using sqldatasource and autogeneratecolumn property is set to true.I have a dropdownlist where table is selected on which gridview is populated (through sp from oracle) which is working but edit command is not working.Do i have to generate template myself or what ever solution?
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Mar 30, 2011
This is my code and i am only able to edit the one data under the category school.But what i nd is to edit the other categories like the name,email...etc..how do i modify my code in the update command.Another thing is to delete the data how do i do that?
[Code]....
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Jun 1, 2010
I'm new to ASP.net 3.5 and trying to create a test site so I can figure out how to use it in the real world. I have created a FormView (Formview1) based on a Client table using Linq Data Sources. The page includes a DropDownList to lookup Clients. I have added a list option (<asp:ListOption value="" Text="(Select Client)" and set AppendDataBoundItems=true so my added option is displayed. I decided to try to use Formview with only the Edit and Insert Modes, and I have set the Default Mode = Insert. When you open the page, a blank Client record is displayed.
The Client record contains serveral lookup fields and they have drop down lists for each. When I select a client from the Client DropDownList, is get the following message 'ddlClientType' has a SelectedValue which is invalid because it does not exist in the list of items I had this problem before and decided the best way to handle this (in the interim) was to turn off foreign key constraints for each of the lookup fields (e.g. ClientType) in SQL Server. That worked for 2-3 days. Now the problem has started again.
When I develop in other applications, I would simply create a lookup data source based on a Union Query with the actual data and a blank record. How can you do this using Linq DataSources. Can you get access and modify the queries?
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Jan 6, 2011
I recently started using SSRS 2010 and I didnt come across this issue in 2005 or 2008 versions of reporting services.
I have a report that drills down to child report1 and then that drills down to child report 2 but clicking a field in the report.
When I click on the link on the first report to go to the second report. I get this error message
"A data source instance has no tbeen supplied for the data source ''reprort2dataset"
I am not sure how to handle this error.
All reports run fine stand alone, but when I try to link them up I get that error.
I have a report viewer running the reports in an aspx page.
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Aug 4, 2010
Where and what am i missing?
this code produces some error:
DataSet ds = services.getOrdersReport(1, "", DateTime.Parse(System.DateTime.Now.Date.ToShortDateString()));
ReportDataSource datasource = new ReportDataSource("JMJ", ds.Tables[0]);
rv.LocalReport.DataSources.Clear();
rv.LocalReport.DataSources.Add(datasource);
rv.LocalReport.Refresh();
ERROR :
A data source instance has not been supplied for the data source 'dsOrders_tblOrdersReport'
'dsOrders_tblOrdersReport' -- name of the table designed in dataset.XSD
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