C# - Is It Possible To Use Return Statement In Try Block
May 13, 2010Is it possible to use return statement in try block?.How,What is the use of the statement.
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Suppose I wanted to search by last name and I entered, "O'Dooles" in the textbox. I would get an exception thrown at me since the apostrophe is used for SQL syntax. I got around that by using the Text.Replace method to swap the single apostrophe for a double one. That got me to thinking.
Are there any other characters I would need to watch for that could throw exceptions?
I'm also guessing there is a much better way to handle all of this. I have seen some of the security issues involved with this. I haven't done much looking into it but is using parameterized queries an option?
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example
try{
}catch(){[code]....
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Jan 29, 2011Here is the deal. I need to create a Stored Procedure that has 2 SELECT statements. Now in ASP.NET, I know that a DataSet can have multiple tables and the DataAdapter can do just that. I am stuck with a scenario where I need to get a value from the first SELECT statement which will later be used in the second SELECT statement. I am creating a SP that passes one parameter (@AnswerID). Which should give me 2 resultsets. See below SELECT statements.
[Code]....
So how do I get the QuestionID from the first SELECT statement?
Basically I am creating a Questionnaire that has Question Dependacies. So from the above SQL statements I would like to display the Question Title with it's relevant answer options but depending on the previous Answer selected hence the @AnswerID parameter.
The reason why I want to use 2 SELECT statements is because I don't want to have 2 roundtrips to th server. So in my code the DataAdapter should return 2 resultsets and fill the DataSet.
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Feb 23, 2010Here's my problem: I have an IPerson which is implemented by Employee and Student. What I really want is what you see below. One LINQ statement to get each type of IPerson. This works great until I call the method ;). It makes sense as to why I'd get the error, but I am really struggling as to find a decent way to pull all IPerson objects from the DB and avoid putting switch statements all over my application.
[code]....
Above, there is a commented out return statement - that essentially does a .ToList() and forgoes the whole deferred execution thing, creating 2 SQL statements - not ideal.
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Jan 18, 2011[Code]....
[Code]....
creating Linq query in return statement
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@PhiNo int
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1 Skin diesease
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3 Cough
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1 Skin diesease
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<p>
<%for (int i = 0; i < 30; i++)
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Does A Return Statement In Function Stop The Function
Jun 8, 2010Given the function
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When I try to consume the web service I'm still not getting XML. It appears as though a reference to the method is being returned rather than say a string containing XML.
<WebMethod()> _
Public Function CustomerSearch(ByVal lastName As String, ByVal firstName As String, ByVal companyName As String, ByVal city As String, ByVal state As String, ByVal email As String) As XmlDocument
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Dec 2, 2010How can I assign a value to the methods return var BEFORE I return the final value?
Example:
public string Example()
{
[here I want to assign a value to the return var and continue this block until the end] = "TempStr"; [code].....
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Mar 5, 2010I am having trouble with this I have 3 Data tables i use over and over again which are cached I would like to write a LINQ statement which would do the following is this possible?
T-SQL VERSION:
SELECT P.[CID],P.[AID]
,B.[AID], B.[Data], B.[Status], B.[Language]
FROM MY_TABLE_1 P
JOIN
(
SELECT A.[AID], A.[Data], A.[Status], A.[Language] FROM MY_TABLE_2 A
UNION ALL
SELECT B.[AID], B.[Data], B.[Status], B.[Language] FROM MY_TABLE_3 B
) B on P.[AID] = B.[AID]
WHERE B.[Language] = 'EN' OR B.[Language] = 'ANY' AND B.STATUS = 1 AND B.[Language] = 'EN' OR B.[Language] = 'ANY' AND B.STATUS = 1
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Is there a good way to return the list values as ints?
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EDIT:
Good question was: what do you mean with logon twice. I mean when a user logs on on another computer or when another person logs on with the same credentials
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Bc this is first time I do in this measure, I need your advice on
Any performance overhead caution caused by lock() Any other issues you ever experienced similar to this scenarios.