I get the following error on the e.Command.Parameters("@latestRowId").Value line. It was working, but now not and I'm not sure why? Conversion from type 'DBNull' to type 'Integer' is not valid.
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I 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'.
I have a problem with my SQL statement that only needs to show future dates in the Gridview.I use vb, vs 2005.I want a DateTime Field(TEndDate) to act as a control field in that only future dates (WHERE TEndDate >= Now.Date.Date) should be returned.It asks for my paramaterized value when I'm building the query.I'm unsure about the source I should select for the query.(The options are: None/Control/Cookie/Form/Profile/Querystring/Session)I'm losing my mind with this!Here is my code:
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Where can I find documentation on the syntax that is expected for LinqDataSource.Select? It seems to be different from what I would do with Linq inline in C# code. For example, concatenateing something in Linq I would normally just do this in the projection:
new { FullName = (person.FirstName + " " + person.LastName ) }
However, with a LinqDataSource the only way I've found to do this is like this:
new ( String.Concat(person.FirstName, " ", person.LastName) as FullName)
I literally spent hours trying to figure this out, and only succeeded when I found a blog where someone gave this verbatim as an example. So I still don't understand why the syntax is different, the braces versus parens, aliasing, Concat operators. Next time I do this I want a better understanding so I am not playing this guessing game. It's like being handed a compiler, and trying to write a program when you don't know what language the compiler compiles.1. Are there different "flavors" of Linq? Like a VB Linq, and C# Linq?2. If so, is the LinqDataSource using a VB flavor of Linq?3. Really, what is really important to me, where can I find documentation on this particular falvor of Linq that the LinqDataSource expects? The documentation for the LinqDataSource itself gives nothing more than extremely simplistic examples.
I can't find my syntax error. Here is my code behind:
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What is the correct code syntax to insert Row of Data.
How do we remove the syntax errors (i.e., '>' expected, and 'declaration expected')?
What is the correct code?
Read example, below:
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To me this should be much easier, but I can't seem to retain the values that are put in the Insert template upon a validation failure or when the sql fails. This will prevent the user from having to retype everything agin in the event of a failure.
As you can see I am using the Sub Insert_Click and not using an insert through the wizard. so the fields are unbound textboxes on the form. There are 2 dropdowns that provide choices for the other fields.
I pasted in the code using the text only option becuase the format was getting messed up. I probably need more background on why the fields are blanking out.
[code]....
How would you handle an INSERT that gets some values from another table using SELECT, where you wanted some values to come from the source table record and other values to come from a different parameter source like a session value? Is this possible?
View 3 RepliesI am trying to use this code:
[Code]....
And i get this error:
Incorrect syntax near the keyword 'AS'. What i am trying to do is SELECT details of a job and also SELECT which region the job is in. I currently have this: [URL] But i need to change it so it shows the Job name, details and then the regions..
I have written some vb code that inserts whatever has been written on my page into an Access database. Only problem is VWD throws up an error saying that the syntax of my SQL statement is wrong. I am 95% sure that this statement is correct because when I saw the statement in Text Visualizer and tried that statement in MYSQL the data went in perfectly.
I have pasted the code below:
strSQL = "INSERT INTO User (UserID, FirstName, LastName, Password) VALUES "
[Code]....
I want to insert a record into a log table ONLY if one exact copy already doesn't exist within ten days, what is a good way to do in one stored procedure what I do above in two?
I have a select statement and want to be able to insert some spaces in the returned data:
[Code]....
For the parts with ' - ', I want to remove the dash and simply put spaces now. But when I remove the dash and put 4 spaces, I only get one space. How do I put in those 4 spaces?
I am using an objectDataSource for the first time. My objectDatasource looks like this:
<asp:ObjectDataSource ID="ObjectDataSource1" runat="server" TypeName="CustomerData"
DataObjectTypeName="Customer" DeleteMethod="DeleteCustomer" InsertMethod="InsertCustomer"
SelectMethod="GetCustomersByObject" UpdateMethod="UpdateCustomer" OldValuesParameterFormatString="original_
[code]...
I have three table like above, table C is mapping table which has foreign key of Table A and B.How can i select and insert data in Table C using Entity Frame Work?
View 2 RepliesI have installed MySQL and set up an ODBC driver to point to a database in MySQL. In ASP.NET I have defined a connection string to attach to this MySQL dtabase.
<asp:SqlDataSource
ID="SqlDataSource2"
runat="server"
ConnectionString="<%$
ConnectionStrings:MySQLConnectionString %>"
SelectCommand="SELECT
* FROM [categories]"
ProviderName="<%$
ConnectionStrings:MySQLConnectionString.ProviderName %>">
</asp:SqlDataSource>
However in ASP.NET connection wizard, although the tables are shown, no colums are shown and when I attempt to run the page which uses this datasource I get an error message about a syntax error near page 1 at 'Select * from [categories]'. how to use an ODBC (MySQL) datasource in ASP.NET?
how can i select a record from A table and insert into B table using linq?
View 2 RepliesI want to issue an INSERT command for an SQL Server table using DataAdapter without first issuing a SELECT command. Could anybody send me lines of code to handle this? Also how do i manage INSERT into selective table columns (I have 10 columns but i only want to update 2 of them)?
View 2 RepliesI'm new to Linq. I have searched and searched the web for a soluion, and can't find anything. I have a Linq query and I want to insert a row ("Select User") to the top before I pass it to the drop down list. I've been trying to use the Union but to now avail (it keeps telling me that my object doesn't support the Union method). My code, prior to attempting to inser a row, is very simple.
public SelectList DropDown_Users()
{
var context = new VivarianDataContext();
var query = from t in context.AspnetUsers
select new { t.UserId, t.LastName };
list = new SelectList(query.AsEnumerable(), "UserId", "LastName");
return list;
}
Now I try to insert a row and I found this on the internet and it seems to say that his solution will work. But it is filled with syntax errors. [URL]
I tried to implement it using the following code, but it doesn't compile.
public SelectList DropDown_Users()
{
SelectList list;
//get the original data
var context = new SQL2005633131VivarianDataContext();
var query = from t in context.AspnetUsers
select new { t.UserId, t.LastName };
//create a dummy table with an empty row
var AllUsers = new List<AspnetUsers>();
var BlankUser = new AspnetUsers()
{UserId=System.Guid.Empty, LastName="Select One"};
AllUsers.Add(BlankUser);
//use Union to join the data - ERRORS HERE
var newTable = AllUsers.Union(query);
list = new SelectList(newTable.AsEnumerable(), "UserId", "LastName");
return list;
}
i am new to asp.net programming i am trying to insert data into access db from asp.net web form but it is showing error as
Syntax error in INSERT INTO statement.
my code is :
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
I have a formview on a web page, set to insert mode as default. The form view is bound to a SQLDatasource. This datasource has a custom query written to select the details for this formview. The query joins two tables to provide relevant detail and not just an ID for one of the elements on the form view.
The first tabe contains information regarding projects and the second table contains detail regarding Resources. First table has the following definition:
[Code]....
After hitting the insert button the insert stored proc is run. if the record already exists then stored proc returns a specific value.I need to refill the details view textboxes with the values the user typed in.I am using the ItemInserted event handler.I seem to reference the control okay but the text doesn't change...even when I replace the command.parameter to just a literal text like "test".
TextBox tNPA = DetailsView1.FindControl("InsertName") as TextBox;
tNPA.Text = command.Parameters[0].Value.ToString();
So what am I missing. I also tried a detailsview1.databind() before and then tried after the above line and still no luck.
I am using a 'SingleOrDefault' LINQ query with a Lambda expression such as:
Email email = db.Emails.SingleOrDefault(p => p.Email1 == Textbox1.Text);
If the textbox entry does not match anything stored in the table, how would I know and how could I deal with this situation in the code?
The 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:
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[Code]....
[Code]....
[Code]....
protected 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)
I've created an Expression Web form with a SQL datasource which is doing a query/select statement.Somehow it appears that I'm making a syntax error. When I divide the query in two and execute them separate, it works fine.I need to filter for an EventType, Region and Today's date + a custom interval (like 7 day's for a week)he parameters come from a search form where the user can select these values via a dropdown list.The two separate (and working) queries within my form are:Query nr.1 :
"Select * from Events WHERE (([EventType] LIKE '%' + @EventType + '%') AND ([Region] LIKE '%' + @Region + '%'))">
<asp:formparameter DefaultValue="%" FormField="EventType" />
[code]...