i have a grid in which i did this :
i get into console it is giving this error on update click :
Uncaught Sys.WebForms.PageRequestManagerServerErrorException: Sys.WebForms.PageRequestManagerServerErrorException: Updating is not supported by data source 'ExistingSqlSource' unless UpdateCommand is specified.
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
DataSourceID="SqlDataSource1" ForeColor="#990000"
AutoGenerateEditButton="True" onrowupdated="GridView1_RowUpdated"
onselectedindexchanged="GridView1_SelectedIndexChanged"
AllowSorting="True">
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I have 2 connection strings which connect to the same database. I used the exact same syntax for both of them, the only difference is the address which they point at.
The "ApplicationServices" connection string functions just fine.
The "GoMelodyEntities" connection string produces Keyword not supported: 'data source'.
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i have list view inside another list view like lv1-->lv2 now problem is inserting record in nested list view see error...
Inserting is not supported by data source 'SqlDataSource2' unless InsertCommand is specified.
another problem when i keep datasource2 in LV1 selected template but datasource2 is not binding lv2.. how can bind lv2...?
I have a problem with a GridView control.I am using the UpdateCommand but the new value is not being stored. If I hard-code in the value to the aspx page it works fine but not if I pass the parameter.The value I am trying to update is called "PC_NAME" an it is an integer.
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How specify input parameters to UpdateCommand
View 3 RepliesI'd like to pull several NewValues from a FormView and write them to a database as part of the Update command.For some reason, I am unable to do this using the following code. Is there something I am missing?
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Using the code below, I am able to load my dynamic dropdownlist and supply it's selectedindex. But when I fire the update command I can see that the information displayed has been lost.
when I fire the update I don't lose data!
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I am insert and update the data in Excel sheet.while iam deleting the data it gives the Error like Deleting data in a linked table is not supported by this ISAM.
string excelConnectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + Fileloc + ";Extended Properties=Excel 12.0;Persist Security Info=False";
OleDbConnection excelConnection = new OleDbConnection(excelConnectionString);
String cquery1 = "Delete from [data1$] where id=" + Txtid.text;
OleDbCommand cmd = new OleDbCommand(cquery1, excelConnection);
excelConnection.Open();
cmd.ExecuteNonQuery();
excelConnection.Close();
On update the dropdown value shows NULL in database : here's structure for my gridview
<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...
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.
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
My griedview code :-
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" RowStyle-BackColor="Black" Font-Names = "Arial" Font-Size = "10pt"
HeaderStyle-BackColor="Black" HeaderStyle-ForeColor="Black" ForeColor="Black" AllowPaging ="true"
OnPageIndexChanging = "OnPaging" PageSize = "5">
[Code] ....
Error is:- The data source does not support server-side data paging.
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.NotSupportedException: The data source does not support server-side data paging.
Source Error:
Line 34: con.Open();
Line 35: GridView1.DataSource = cmd.ExecuteReader();
Line 36: GridView1.DataBind(); Line 37: con.Close();
Line 38: }
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?
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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?
I've been using the Item Inserted event for my data controls, such as details view. I'm wondering if there are advantages to doing this with the data sources instead of the data control. There is a lot of overlap in the events provided by these two types of controls. Are there advantages to using the events raised by the data source instead of the ones raised by the data control itself. Should I be using the events raised by the data source instead of the control used to enter the data?
View 2 RepliesI have a GridView or DetailsView and its bound to a CslaDataSource.I noticed that the "Object_Select()" event is fired automatically with every time the page is loaded or refreshed.How I can perfrom mnaual biding between the DetailsView Control and CslaDataSource ?I want to control binding via code using the DetailsView.DataBind() method in certain cases only.
View 4 RepliesI'm creating a page that allows the user to create a new object that will later be stored in the database. The problem is that the design of ASP.NET data controls seems to insist upon only working with pre-existing data that has been stored in a database (or XML, etc...).
I'm basically trying to get the user to compose a list of items and specify a quantity for each item. I could do this by generating table rows but the rows are lost at each postback. The data view controls seem to be designed only to be bound to a data source but until the list is complete, the data can only be in memory.
What control is appropriate for this and how can I achieve this with that control?
I am getting the following error while i bind the dataset dynamically in reportviewer(Asp .net 4.0) . I have binded the dataset using stroedprocedure.
Error:A data source instance has not been supplied for the data source 'DataSet1'.
I am trying to create FormView that has details aboout author. But some details about his books like pubdate, title resides in some other table. In the source page:
<asp:Label id"AuthorName" Text='<% #Bind("au_fname")%>' runat="server/>
but this field has to be obtained from other table:
<asp:Label id="AuthorTitle" Text='<% #Bind("title")%>' runat="server"/>
the title resides in titleauthor table, can we use two connections(author, titlesauthor) simultaneously.
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?
View 1 RepliesAm using the following 2 events for child grid.
1. RowDataBound
2. RowEditing
I enable AutoGenerateEditButton = "true", which can show me edit button in the child grid. Also i have tried to use the event rowediting which can return e.NewEditIndex too. for the master i use sqlDatasource design time. for the child grid am confusing how to do the edit/delete/add.
following link good enuf for master grid
[URL]
for child grid datasource if am not mistaken, guess need to assign the datasource during runtime. am not sure how to do this?
Following is the link for my so far trial
[URL]
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I have extended GridView in order to have consistent look & feel, paging and sorting. However, when the page is first time loaded, the select method is getting called twice. It works fine when i move between pages in pagination.
Note, i am using Asp.net 2.0.
i wanted to retrieve things from the data base and perform mathmatical operations on it then post it to the user, so i was told to use the bullited list and bind it to the object dataSource
how to perform such thing??
I have a gridview with daatsource from MembershipUserCollection. When my collection doesn't contain any records the gridview just disappears. I want to display the empty gridview indicating no records exist rather than the grid just become invisible.
How to make gridview always visible ?