DataSource Controls :: Cannot Create Datacontext For Make A Select
Jun 24, 2010cannot create datacontext for make a select
View 2 Replies
Similar Messages:
DataSource Controls :: How To Make One DataContext For Multiple Databases
Apr 17, 2010I have 2 databases one called DB1, and the other DB2. Both of them has exactly the same design (tables, procedures and etc..)
Now, I am using SQLMETAL to create the DataContext. problem is that there are two lines that direct to a certain database and so I cannot use the same code for both databases.
here is the code:
[Code]....
Now, What I am lookin for is a programmatically way to change this two lines (DataBaseAttribute and the connrection string) .
The easiest solution for me of course is to create the class twice, with the same code and just change manually what I need which is not what I am looking for.
There is a full discussion with microsoft stuff right here: [URL]
DataSource Controls :: How To Create A LINQ DataContext Class As Per Database Design
May 5, 2010I want to create a LINQ DataContext Class as per Database Design. I getting a problem in some cases.
the syntax to bulid a LINQ class :
[Code]....
Here Table Name Is HardCoded But I my case my Table Name A Changed as Finicial Year Change.So How I Give The TableName As RunTime
DataSource Controls :: LINQ DataContext From Code Behind?
Jan 21, 2010I have a linq DataSource and a Grid in my htnl and I want to access the DataContext from code behind. Now in the past when I do evrything in code behind I just use...
DataContextName db = new DataContextName();
and I have my reference.
Now I can still do that and it works fine it just seems odd to be making a second class object when there is one that is made from the linq DataSource in the html. But I can't figure out how to get a reference to the DataContext that is created from my html code.
DataSource Controls :: Linq Update 2 Datacontext?
Mar 30, 2010I'm studing Linq on TheBeerHouse Project,I would create a my Linq Version.I have a big problem with Updating, this i a part of source :
protected static ArticlesDataContext GetContext()
{
return new ArticlesDataContext(Settings.ConnectionString);
[code]...
DataSource Controls :: How To Wrap The DataContext's SubmitChanges Within A TransactionScope When Modifying Multiple Tables
Feb 20, 2010I am confused about why I would need to wrap the DataContext's SubmitChanges within a transactionScope when modifying multiple tables. I was under the impression that the DataContext would track these changes and would therefore create its own transaction if need be.
In other words, if a change was made to update table A, B and C or if I made changes to 10 out of 20 items in a collection of rows, that the datacontext would track these changes and create its own transaction. If that is correct then why have I seen examples that wrapped these types of updates in a TransactionScope?
DataSource Controls :: The Type 'System.Data.Linq.DataContext' Is Defined In An Assembly That Is Not Referenced?
May 28, 2010I have a strange problem. I am adding a LinqDatasource object, and set the context:
[Code]....
Then I get this error:The type 'System.Data.Linq.DataContext' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.
On web.config I already have this:
<add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
NOTE: The datacontext is in a different project (DLL proect) where I added a refernce to System.Data.Linq.
is there another way adding a refernce to a web project? or only though teh web.config?
DataSource Controls :: Create A Multi Column Listbox By Combining Fields In Linq Select Statement
Jan 11, 2010I am trying to create a multi column listbox by combining fields in Linq select statement, as Let Name = Last + First. The problem is how to pad the Last column with spaces as you would in SQL using REPLICATE so when I bind the listbox to the data, it looks like two columns.
View 5 RepliesDataSource Controls :: How To Select Rows From A DataTable And Create A New ViewList With The Selected Rows Only, While ...
May 31, 2010I have one big DataTable with X rows. I want to select Y rows from it and bind them to a new ViewList. While doing it, I want to delete these rows from the DataTable (Having X - Y rows).
What is the best and fast way to do it?
I don't know if it is better to create a new DataTable to have the Y and after that bind them to a ViewList or something else?
I'm also looking for example in code how to select/delete rows from DataTable.
DataSource Controls :: DataContext Update Doesn't Update?
Jun 21, 2010What's wrong with the following code?
[Code]....
After the SubmitChanges call, the Text field in data2 wasn't changed. According to the NerdDinner sample, I supposedly can just write to my data object and then call SubmitChanges.
DataSource Controls :: Programmatically Setting ODS Select Method And Select Parameters?
Dec 22, 2010The drop down list is used to determine what search criteria will be used to find an invoice. I tried to set the Select method in the switch statement. I don't understand how to set the Select Method and the select parameters programmatically though . I tried a few different ways but can't make the compiler happy. My ODS is in scope in the code behind. I'm not able to access it's properties though. The BAL resides in a separate project that is a ClassLibrary. I also have a using statement for the ClassLibrary project in the code behind.
give me an example of how to do this?
Mark up:
[Code]....
[Code]....
[Code]....
[Code]....
DataSource Controls :: Select / Returns Error No Overloading Method For Select?
May 9, 2010protected void Button19_Click(object sender, EventArgs e)
{
SqlDataSource conn = new SqlDataSource();
conn.ConnectionString = ConfigurationManager.ConnectionStrings["Database2ConnectionString1"].ToString();
conn.SelectCommandType = SqlDataSourceCommandType.Text;
conn.SelectCommand = "SELECT FROM table1 (a, b)VALUES(@a,@b)";
conn.SelectParameters.Add("a",TextBox1.Text);
conn.SelectParameters.Add("b", TextBox2.Text);
int rowsAffected = 0;
try
{
rowsAffected = conn.Selectt();
}
catch (Exception)
{
Label1.Text = "Error";
}
finally {
conn = null;
}
if (rowsAffected != 0)
{
Label1.Text = "Data saved";
}
}
well it returns error no overloading method for select (P.S. same code work fine for insert)
DataSource Controls :: Declare Attribute With Select Top 1 / Error Incorrect Syntax Near The Keyword 'select'
Apr 14, 2010I will declarate a attribute, but it gives me an error
This query works fine and returns 1 record from type int:
SELECT TOP 1 DataObjectVersionID
FROM tblDataObjectVersionPropertyValueText
WHERE PropValue like CAST('00010281' AS ntext)
ORDER BY DataObjectVersionID DESC
And when I will declarate a attribute/parameter it gives me an error:
DECLARE @dataObjectVersionId INT
SET @dataObjectVersionId = SELECT TOP 1 DataObjectVersionID
FROM tblDataObjectVersionPropertyValueText
WHERE PropValue like CAST('00010281' AS ntext)
ORDER BY DataObjectVersionID DESC
Error message:
Msg 156, Level 15, State 1, Line 2
Incorrect syntax near the keyword 'SELECT'.
Make Select Statement Select Row With Nearest Values?
Oct 23, 2010How would i make a select statement select the row with the nearest values? e.g.: I have 3 labels, labels1 2 and 3, with values of 1.2, 2 and 5.8 In my table i have 4 columns, first is the data im after, and the next 3 relate to the three labels. I want to select one row, where the values of labels match it the closest.......
View 8 RepliesForms Data Controls :: Make A Checkbox Select All Other Checkboxes?
Aug 2, 2010How can I make a "select all" checkbox check all of the checkboxes within a datalist control? Here's what I have:
[Code]....
Code behind
[Code]....
Data Controls :: How To Make Insert / Delete / Update / Select In GridView
Mar 29, 2013I have a student data, when I put the student id in textbox, it show the students mark in gridview like
1st semester marks in first row , 2nd semester marks in second row ,etc
and i want insert 3rd semester marks , 4th semester marks for the particular student , and also , delete , update in gridview....
Create A Simple String Array With Data Retrieved From A Select Statement(SELECT Firstname FROM Customers?
May 29, 2010i'm trying to to create a simple string array with data retrieved from a select statement(SELECT firstname FROM customers , for ex.)
View 6 RepliesDataSource Controls :: SQL Query With IF And Select
Feb 18, 2010SQL Query with IF and Select
View 2 RepliesDataSource Controls :: How To Select / Use Two DBO For CommandText
May 2, 2010I would like to combine two commandtexts into one
text1.CommandText = "SELECT Id, Heading as Head FROM dbo.Modul"
text2.CommandText = "SELECT Id, Caption as Head FROM dbo.Menu"
I want to combine these two into:
text3.CommandText = "SELECT Id, Heading as Head FROM dbo.Modul" + "SELECT Id, Caption as Head FROM dbo.Menu"
DataSource Controls :: Program A Select * From Rel Where Rel Like 'L'%'?
Jun 15, 2010The following code is used to get a relation out of the database:
rel_SQL = "select * from Relatie where relatie_soort_nr = '" + rel_srt_nr + "' and relatie_naam like '%" + sel_Waarde.Trim() + "%'";
This code is a problem when you have a relation with ' in his/here name.
rel_SQL = "select * from Relatie where relatie_soort_nr = '1' and relatie_naam like '%L'%'";
As you can see there is one to many ' sign in the code, how can I solve this like problem?
DataSource Controls :: Select By Location?
May 14, 2010I have a table with number fields, one of which is location. What I want is a select command which put all records for the selected location first then adds all the others on the end in what ever order they occur.
View 1 RepliesDataSource Controls :: Select Top Record From Sql Statement
Mar 17, 2010If I run the following SQL script:
[Code]....
DataSource Controls :: How To Select Top X Records From Each Group
Apr 7, 2010i have two tables (Users, Roles) and each user belongs to one role. Can I make a sql query that returns 10 newest users from each role in one query?
View 5 RepliesDataSource Controls :: Sql Select Query Where Date
Apr 13, 2010in DataBase Attendancedate is save in this format 4/5/2010 4:16:28 PM ..i want to query like this select * from EmployeeAttendance where Attendancedate='4/5/2010' but this giv error
View 5 RepliesDataSource Controls :: How To Select Statement For Some Scenario
Apr 24, 2010I want the select statement for the above scenario.
View 2 Replies