Public Variable C# - Variable Is Assigned A Value In Another Class?
Mar 7, 2010[Code]....
The variable is assigned a value in another class like this:
[Code]....
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Jul 18, 2010[Code]....
I have a publice variable to be used in the same webpage. when the user click on button 1, it does some process and assign a value to my public variable. After that, the user can click on button 2 which needs the public variable value to function. However I see the value of the public variable is 0 when I click on button 2.
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I am now having issues with my hosting where on shared application pool, the worker recycle is triggered every 90 minutes, this will clear sessions causing all my users to be logged out. I opted for a dedicated application pool, which got worse because I am only allocated 50MB memory limit and if this is reached, the worker recycle is triggered and I lose my sessions again. I have tried as much as possible optimization techniques, e.g. dispose where possible, close connections, disable viewstate for static controls etc but my memory per instance keeps building up from page to page without any signs of improvement. I don't use loops nor store huge objects like bitmaps etc but my sessions are now gone even faster than 90 minutes in shared application pool before.
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Mar 2, 2010The line "Return strLoc" below shows the green line underneath strLoc with the message "Variable 'strLoc' used before it has been assigned a value." In fact, it returns the value just fine to the calling module, so I'm wondering why it's giving this message and how to prevent it.
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Variable Nuid Is Used Before Being Assigned A Value
Mar 7, 2016I am trying to access a user's login credentials to find out if they are an admin user or not. This way I can assign session variables to them and show certain aspects of the web page that other users won't see. I unfortunately keep getting this error when trying to dim a variable to assign the values too.
Variable Nuid is used before being assigned a value.
Variable AdminUser is used before being assigned a value.
Code:
Protected Sub checkAdmin_Click(sender As Object, e As EventArgs) Handles checkAdmin.Click
Dim strNuid As String = Request.Form("Nuid")
Dim cnString As String = ConfigurationManager.ConnectionStrings("snfTimeSystemConnectionString").ToString()
Try
Using cn As SqlConnection = New SqlConnection()
cn.ConnectionString = cnString
[Code] .....
VS 2015 - Variable Is Used Before It Has Been Assigned A Value
Apr 20, 2016I was working on my homework, making a website obiously, but I have a small problem with the griedview. I wanted to add a button on the end of the row, but I receive some error notifications and warnings too...
Code:
Imports System.Data
Imports System.Data.SqlClient
Imports System.Web.UI.WebControls
Partial Class Search
Inherits System.Web.UI.Page
[Code] ....
There is this error too:
SeverityCodeDescriptionProjectFileLineSuppression State
ErrorBC30518Overload resolution failed because no accessible 'Add' can be called with these arguments:
'Public Overloads Sub Add(column As DataColumn)': Value of type 'ButtonField' cannot be converted to 'DataColumn'.
'Public Overloads Function Add(columnName As String) As DataColumn': Value of type 'ButtonField' cannot be converted to 'String'.GIPH:GIPSearch.aspx.vb31Active
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C# - Session Variable Assigned To Data Table And Create Object Reference?
Jan 13, 2010----> I have datatable which is passing to another page in session variable.
----> Now on another page i take the session variable into datatable.
datatable ds_table = new datatable();
ds_table = (datatable)session["table_value"];
----> so problem, is that , when i filtering some rows from ds_table . that taking effect in the session variable. if some rows deleted from ds_table. then it is also deleted from session variable.
----> so, anyone tell me why is this going to happene?
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string key=Request.QueryString.Get(SEARCH_STRING);
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Apr 10, 2010I have a problem to pass along public variables from C# code to the HTML code. I assign the variables in the Page_Load event and then pass along them to the Panel and Image control in the HTML code. Though I get this compileerror for the Width: "Cannot create an object of type "System.Web.UI.EbControls.Unit" from its string representation '<%setWidthImage%>' for the 'Width' property."
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Web Forms :: How To Use Public Variable For All Subs In A Code Behind Page
May 9, 2010I'd like to know how to declare a variable in my code behind page that I can use in all the subs of my code behind.
I tried in after the Partial Class declaration to declare a "Public String" :
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and to use it in my subs but when I use it from a sub to another I loose the value affected in another sub.
Is there a way to use a Public variable from a sub to another (I'm actually using a session variable in order to do it and I'm not sure it is the best way)
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<asp:Button runat="server" CssClass="txtdisplay" ID="Button1"
Text="Browse all jobs in area"
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I need to access a server side data may be an integer value in javascript on client side. I know about two options to do it.Create a public variable or property on server side and set it to javascript variable on client side as below:
var value = eval(<% =value %>);
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View 3 RepliesBC3016: Variable 'myConnection' Hides A Variable In An Enclosing Block?
Jul 16, 2010I'm am not quite sure why I am getting this error.
Dim numUsers as Integer
Using myConnection as New System.Data.SqlClient.SqlConnection("Data Source=(local);InitialCatalog=dbtest;Integrated Security=True")
Dim queryString As String = "SELECT COUNT(*) AS Num_Of_User FROM tblusers WHERE username=@username AND password=@password"
Using myCommand as New System.Data.SqlClient.SqlCommand(queryString, myConnection)
myConnection.Open
myCommand.Parameters.AddWithValue("@username", requestName)
myCommand.Parameters.AddWithValue("@password", requestPass)
numUsers = myCommand.ExecuteScalar()
End Using
End Using
This error occurs on the first using statment.
Variable Hides A Variable In An Enclosing Block Error
May 14, 2010have a look at this simple code snippet
[Code]....
Here second declaration of x gives error that "variable 'x' hides a variable in an enclosing block. I wonder why this error is not given for second 'i' variable declared in second for loop?
Since i am declaring second x in a separate for block, why this error is given for variable second x ?
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