i want to create a arraylist which will able to store user info like (username,machineIP,port ) for each user in the list & retrive this data when needed . any one tell me how i can do it or any alternative way without database or xml file.
View 6 RepliesI'm looking store an ArrayList into a session variable, but am having a few problems. Can you spot anything wrong?
public partial class _Default : System.Web.UI.Page { ArrayList score = new ArrayList(); protected void twist2(object sender, EventArgs e) { int a = 11; int c = RandomNumber(a); score.Add(c); score = (ArrayList)Session["scoreData"]; Result.Text = (c).ToString(); String Result_id = Result.Text; int total = 0; //Session["scoreData"] = score; for (int i = 0; i < score.Count; ++i) { total += (int)score[i]; } Sum.Text = (total).ToString(); String Sum_id = Sum.Text; }
I am using a Session Arraylist to hold information about an online user. However, I am having troubel accessing the data. The error seems to be in the last bit because I can access one value of sample data just not print out a number of values. I have an class penalyPoint that has the following constructor:
public PenaltyPoint(string penaltyCode1, string penaltyDate1, string PenaltyPointsAwarded1, string penaltyBan1)
Then in a button response I have the following response which holds the data in a session arraylist variable as the user can enter a number of these objects. I will put a capacity limit on the arraylist later on.
//Assign the data in the form to a PenaltyPoint Object
PenaltyPoint penPoint = new PenaltyPoint(ddlPen1Code.SelectedValue, txtPenDate.Text, txtPen1Points.Text, txtPen1Ban.Text);
//The current driver number has to be set before this page is called
//Temp
int currentDriver = 0;
//int currentDriver = (int)(Session["currentDriverNum"]);
//create an arraylist to be used for transferring arraylist to session
ArrayList penPointsDrive0Array = new ArrayList();
if (currentDriver == 0)
{
//if the session is equal to null then nothing has to be returned from session
if (Session["penPointsArrayListDrive0"] == null)
{
penPointsDrive0Array.Add(penPoint);
Session["penPointsArrayListDrive0"] = penPointsDrive0Array;
Response.Redirect("PenaltyPoints.aspx");
}
else
{
penPointsDrive0Array = (ArrayList)Session["penPointsArrayListDrive0"];
penPointsDrive0Array.Add(penPoint);
Session["penPointsArrayListDrive0"] = penPointsDrive0Array;
Response.Redirect("PenaltyPoints.aspx");
}
}
Then I try to access the data in the arraylist but I getting nothing printing out. I am just trying to test the data at the minute. I am not that use to arraylist so this might be the problem.
public partial class TestPage : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
ArrayList answer = new ArrayList();
ArrayList driver1 = (ArrayList)Session["penPointsArrayListDrive0"];
PenaltyPoint ps = new PenaltyPoint();
string output;
for (int i = 0; i < driver1.Count; i++)
{
ps = (PenaltyPoint)driver1[i];
string answertemp = ps.getPenaltyCode();
output = answertemp;
}
}
}
I can't get the final part to collect all the values into a string it keeps on coming up with errors.
I am using ASP.NET 2.0.
In my applicaion, I store some values in an ArrayList and store this Arraylist in a session variable. I want to know the size of this session variable in memory. Is there any method to do this.
Can i store Image data in Array list.
View 4 RepliesIs it possible to perform user management (store user info, login , logout etc) without using session or cookie?
View 3 RepliesI'm creating a shopping cart application and I'm having some issues with implementing a session state for my arraylist.
in my page load i declared
if (Session["Cart"] == null)
{
Session["Cart"] = new ArrayList();
}
else
{
ArrayList cart = (ArrayList)Session["Cart"];
}
to create the session if it doesn't exist yet.
then i have an event handler for a button to add items to the arraylist
protected void onClick_AddBooking(object sender, EventArgs e)
{
int ClassID = Convert.ToInt32(Request.QueryString.Get("Class_Id"));
ArrayList cart1 = new ArrayList();
cart1 = Session["Cart"];
cart1.Add(ClassID);
I'm essentially storing the class_ID then when the student confirms i'll store that to the DB and associate that ID with the Class Details.
I am not sure about writing the method in the web service. I'm trying to select the client names from sql server, then storing them into an arraylist. Finally, returning the array of names. This is my code:
[Code]....
My method has an error.
I am working in asp.net 3.5 with c# and sqlserver 2005 as database. I my project i have to select some of the checkbox of a gridview and update the database according to that. I want to store all the selected box in a arraylist and update the database according to the selected list . But i am not getting how to proceed.
View 3 RepliesI need to initiate an Array to hold 100 integers. Then, by user click, a random number 1-100 is generated, and subtracted from the list. In the next call, the next random number will be subtracted from the 99 numbers left, next from the 98 numbers and so on. I need to do this with AJAX and if needed a webservice. The reason I am asking here is because I am confused...Where shall I instanciate the array and how do I keep track of the removed numbers?
View 1 RepliesI have an arraylist that contains some values. (e.g. playerName). I also queried for values in the database (e.g. playerName, playerSales) and I need to match the playerName in the arraylist to the corresponding ones that I did a query from the database. (match those with the same playerName). From there, I need to create a bar graph with the respective playerName and their sales (playerSales).
A portion of the code is shown below:
[Code]....
The arraylist I mentioned was saved to a session to be used in another page. Is my code right? And how can I create the graph from the values?
I have a web page where a GridView will be shown with a column of different products and another column with checkboxes. Checking on the checkboxes will be equivalent to selecting the products. The selected products are saved to an arraylist. Then, the user has to click on a button located on the same page to analyze the selected products. On clicking the button, he/she will be directed to another page where a bar graph will be shown. The bar graph will be the result of having analyzed the products. How do I create the bar graph where the products are taken from the arraylist but I can make use of the datasource within the chart control to retrieve more detailed info(such as product sales) from the database, taking into account the products from the arraylist?
View 3 RepliesI'm getting the following error when trying to save a custom class within my ArrayList within my user profile:
There was an error generating the XML document. ---> System.InvalidOperationException: The type Com.xxx.MyDataClass was not expected. Use the XmlInclude or SoapInclude attribute to specify types that are not known statically.
My web.config has something like:
<profile enabled="true" automaticSaveEnabled="false" defaultProvider="xxxxxxProvider">
<properties>
<add name="MyData" type="System.Collections.ArrayList"/>
</properties>
</profile>
I am trying to store my class called (something like) MyDataClass in an ArrayList into MyData. When I save I get the error above. The class MyDataClass has just two members for now, both set as 'string'.
I assume I have to tell the class has to serialize itself but I'm not sure how.
Here's the class:
namespace Com.xxxx.DataClasses
{
public class MyDataClass : ISerializable
{
public string elem1;
public string elem2;
public string Elem1
{
get { return elem1; }
set { elem1 = value; }
}
public string Elem2
{
get { return elem2; }
set { elem2 = value; }
}
....
UPDATE: FIXED
I was able to fix this issue via the following:
First of all here is a good resource: http://msdn.microsoft.com/en-us/library/d8b58y5d.aspx
I changed the profile entries to be:
<profile enabled="true" automaticSaveEnabled="false" defaultProvider="xxxxxxProvider">
<properties>
<add name="MyData" type="mypackage.MyDataClass" serializeAs="binary"/>
</properties>
</profile>
and then I created MyDataClass to contain a List<> of MyDataClassInfo objects similar to:
namespace Com.xxxx.DataClasses
{
[Serializable]
public class MyDataClass
{
List<MyDataClassInfo> myDataClassInfo;
public MyDataClassInfo()
{
myDataClassInfo = new List<MyDataClassInfo>;
}
public List<MyDataClassInfo> MyDataClassInfo
{
get;
set;
}
}
[Serializable]
public class MyDataClassInfo
{
public string elem1;
public string elem2;
public string Elem1
{
get { return elem1; }
set { elem1 = value; }
}
public string Elem2
{
get { return elem2; }
set { elem2 = value; }
}
....
The key here was 1) using the serializeAt="binary" and 2) using a class which contained a list instead of a list within the profile.
I need to store a large amount of data in user's session but I guess using Session Object is not the best way of doing that. Is there any other way around??? Remember I don't have small variables to store, I have large collections.
View 5 RepliesI try to create a persistent cookie to store a preferred language on our website, but it doesn't work.
So, to isolate the problem, I created a new website, with a blank page and with the code behind bellow. If I click the button, the page post back and I get this:
"Cookies expires: 0001-01-01 00:00:00 value: 10"
[Code]....
Using visual studio 2010.
Dragged and dropped a login control onto a blank content page. Set up my web.config (i'll include the code for that at the end). It seems to want to use a sql database to store the info. I just want to use the web.config since it's just a single user and a simple site. I thought I could just drag and drop the login control to a page and that would be the end of it (besides setting up the web.config).
Here's what i have in the config file
[Code]....
I created a table(UserProfile) to store additional user info and create foreign key relationship btw UserId of UserProfile table & asp.net_Users table.
When i run the createuser page i have this error:
The INSERT statement conflicted with the FOREIGN KEY constraint "FK_User_Profile_aspnet_Users1".
"dbo.aspnet_Users", column 'UserId'.
The statement has been terminated.
I am looping through a dataset and I would like to have the following in this array list
name, from, to, price
john, 40, 50, 39.99
mike, 20, 50, 49.99
etc.
Once I do that, or if it is possible to do it using the dataset that will work with me. But I want to do...
If john's price between from and to...
So in my code I wanted to make it easy for me and instead of memorizing the row #, I would just do.. arraylist.row("john").item("from")
I have read the post at http://forums.asp.net/t/1403132.aspx regarding login control. Is there a place to store the User logged-in ID (info) for later checking and use? I don't need to use the session object. I don't need the page to expire. I don't need the user to use a page saved in the favoites.
View 3 RepliesHow can I convert a arraylist to a string?
View 4 RepliesIs there a way I can sort this query result in Linq? I'd like to sort in descending order by the .Count parameter:
[Code]....
I have an arraylist of string items that I want to bind to a gridview.I want to bind the value from each item to a asp:HyperLinkField but I dont know what the DataTextField should be? The arraylist obviously doesn't have a column heading as it's just 1 dimensional.What value do I need to use in the DataTextField?
View 3 Replieshow to distinct arraylist value using c#?
View 10 RepliesI have ArrayList in my Model and want to iterate through it in my javascript. I am using following code but its giving me error : CS0103: The name 'i' does not exist in the current context
for(var i=0; i <= <%=Model.KeyList.Count%>; i++)
{
alert('<%=Model.KeyList[i]%>');
}
How to get rid of this?
how can i do empty Arraylist in immediate window in asp.net
View 1 Replies