i have a sqldatasource which will return 1 field (1 row) for an ID. I need to get that result and display it on a textbox. I would do it using a stored procedure (this was already made) but i was thinking sqldatasource is easier. Is there a way to bind that result onto my textbox?
I am now trying to bind data from SqlDataSource into a textbox, but the problem that I face is that my DataSource only return a single row. So i don't place my textbox inside any DataView or listview.
I'm programming a webpage in ASP.NET which displays a list of students not listed as participants in something, and upon clicking a student name shows you a brief summary of their details, so the user can ensure they're selecting the right person.
My code currently correctly obtains their ID, adds it as a parameter to my stored procedure and executes the procedure;
[code]....
However, when I try to access the results I get the following error:
System.NullReferenceException: Object reference not set to an instance of an object.
Upon debugging, there don't seem to be any results returned... but when running just the stored procedure in SQL Server with the same data, it does return a single row, as expected.
How do I access this result so I can bind it to my fields?
(I am working in ASP.NET 3.5 in Visual Studio 2008, with SQL Server 2008.)
I've been looking into how best to do this and wisdom would be appreciated. For read only purposes, I've been happily using LINQ and binding it to a grid. For editing purposes, I've used the LinqDataSource control, enabled the Edit/Delete operations in the process, and I have a nice editable grid bound to some or all of the table's fields.Now I have a situation where I want to edit a few fields in table A, but there are various values in linked table B that I want to display in that grid too (no editing of those). So my query looks like the below. The fields in tblDupes (cleared, notes) are what I want to edit, but I'd like to display those tblVoucher ones.
var theDupes = from d in db.tblDupes where d.dupeGroup == Ref select new
[code]...
A similar but different question LINQDataSource - Query Multiple Tables? sent me looking at scott Guthrie's blog entry http://weblogs.asp.net/scottgu/archive/2007/09/07/linq-to-sql-part-9-using-a-custom-linq-expression-with-the-lt-asp-linqdatasource-gt-control.aspx, where he handles various events to have a LinqDataSource with a custom query across tables. This still seems aimed at explicitly designed classes though, even if the class has only a subset of the fields.
So my question is: is there an easy way to allow committing of the changes made to the anonymous collection (a changes.Submit type action), or just an easy way to 'display' fields from another table while not involving them in the updating?EDIT: Thinking more, it doesn't have to be anonymous really. I'd be happy to define a class to contain the elements in that query, since it won't change often. But, those elements would be across two tables, even though only one needs updating. Not sure if that suggests entity framework would be more suitable - I get the feeling it wouldn't - I don't want the whole 'model' always grouping the fields in this way.
I'm looking for the easiest way to bind data from a SqlDataSource to textboxes dropped in Visual Studio 2008.
For example, I have 4 textboxes currently that have Address, City, State, Zip. I also have a SqlDataSource on the page fetching the ID of the record and selecting those 4 fields based on ID.
How am I able to quickly bind each box to those particular fields selected? I would think this would be really straight forward - but seems it's not. Seems like the answer is funneled towards having to create a GridView or some type of control.
I have a listbox controll and i want to bind it with an SqlDataSource.SqlDataSource must be declared in the code behind but i don't know where declare it(page init,page load...)and how to add sql parameter dynamically (parameters are the selected values of listbox, so they are multiple).
I have a dropdownlist that's being populated from a SQL datasource. I would also like to have a tooltip for each dropdownlist list item on mouse over. I found the example below which adds a title attribute for each list item using the listitem text as a tooltip but I want to make the title/tooltip value another field in the database. In other words,
Should i use dataset in code behind or SqlDataSource on the form designer to fill or bind a DropDownList in my asp.net page I am currently using SqlDatasource on the form and i bind the control to MySqlDatasource because i find it is very easy and to much faster but somebody told me to use dataset from code behind because of security and performance
I have a user controlThe user selects some items from user control (check box list)User clicks update button on user control The new rows get updated on a gridview on calling page & user control is hidden
a)I have made the user control but I dont know how to return the results and bind them with gridview on my calling page.
b) Update: If I create the update button outside the user control and on my calling page and then on its button click event Isomehow access user control checkbox list selected items would that be a good approach ? And how to do this stuff ?
I have a ListView (in an update panel) bound to an ObjectDataSource (connected to an NHibernate object) and in the EditItemTemplate I use Text='<%# Bind("HideLocation")%>' to bind to a string property of the object.
When I click edit (twice, another issue I'm having) and view the code in Chrome, the output looks like this:
[code]....
why the value of the bound data (in this case: In locker 2317) is showing up outside of the text box instead of as the contents of the data?
I'm trying to use a javascript Date and Time calendar in my Insert and Edit templates in a Detailsview that is bound to SQL Fields. The reason I am trying the javascript date time selector is that I need to have the date and time, the asp.net one is just the date part.
I tried using it with an asp:textbox on just a plain aspx page and it works like a charm, however when I add it to the detailsview i keep on getting the "Error: Object required" am I missing a step here? That and seeing as I'm using a site master page where exactly do I put the:
I have used TinyMCE Rich TextBox in my application but in my web form i have mulitple multi-line Text-Box. what i want that Rich TextBox should be bind to only one text box not all TextBoxes.
I have two related ddl's on an updatepanel and would like to put the result of that query on a textbox... So pretty much using this kind of query on Sqldatasource
How can I pass the result of the linq to a textbox?
Code: string search = txtSearchPO.Text; IPSBLL.TransactionInfo dbInfo = new IPSBLL.TransactionInfo(); var q = from info in dbInfo.GetTransactionInfo() where info.PONumber == search select info; txtPONumber.Text = q;
I need to access the column data something like this:
Code:
DataTable.Rows[index].columnName How can I do that in LINQ?
I have a complicated report that nests six deep and so really hits the database hard. I want to use SqlDataReaders NOT DataAdapters and DataSets because I don't want big tables in memory.
MARS can get me the data fast, all from the one connection. But all the examples show it binding to a treeview.
I want to bind it to nested GridViews (six deep!).
Any examples of MARS binding to nested gridview/list/repeater controls of any kind?
I have Multiple Dropdown list on my webform DropDownlist1, DropDownlist2,DropDownlist3,........,DropDownlist11, i wanted add all and result should e displayed in Textbox
i am facing a minor problem but can't find out its syntaxi have listview, and inside the template i have 2 labels, in design time i bind 1 label to one column thatis 'type' and depending upon this type i want to bind other labels to different columnsif type is question than 2 label will have to show data of question columnif type is job than 2 label will have to show data of job, so on........how to accomplish this,in databinding event handler i can check the value of typebut i want to know the syntax of binding 2 label in run time, with different fields using EVAL
