i am fresher, so i want to learn Enum deeply.
What is enum, when to use it and why to use it?
Because i want to clear from basic. Infact i want to become my basic concepts strong in OOPS, Collections.
whats wrong with this code, i try also Enum.Parse but didnt work.
public enum RoleNames
{
Administrator,
[code]...
I am new to ASP.Net i dont understand the concept of sessioncookiesWhat is a sessioncookie,what are the advantages of sessioncookie whats is sessioncookie is all about,how to create a sessioncookie,how to retreive values from sessioncookies,how to store values in sessioncookies.i searched in net but i dont get clear idea about the sessioncookie concept can anyone pls clarify whats is sessioncookies and its concepts and provide some code samples if possible.
View 2 Replies I need a brief description and concept that what is event mapping in Asp.Net?
If you have any useful link tell me. Write here if you know about this
i wanna know the concept of datakey name in grid view how its work...
when we connect it to the sqldatasource when i updata the field
i write the following code:
<asp:SqlDataSource ID="datasource1" ProviderName="System.Data.SqlClient" runat="server" ConnectionString="<%$ConnectionStrings:ConnectionS tring%>" SelectCommand="Select * From ManageClient"
UpdateCommand="Update ManageClient Set ClientName=@ClientName,Address=@Address,MobileNo=@ MobileNo,Image=@Image Where ClientId=@ClientId"></asp:SqlDataSource>
in the above code we donot use <updateparameter> tag can u explain why
when i connect it to the grid view & i keep the datakeynames="ClientId"
I am trying to insert the data via linq to sql concept. i wrote down the code like this. here customers is the table name in which i want to insert the data. How to achieve it? following code is not working. How to insert the data via this concept.
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click
Dim context As New linq_to_sql_classesDataContext
Dim custid As New Customer
custid.CustomerID = Trim(txt_custid.Text)
[Code]....
I was hired to do some contract work for a short contract. I am looking at this code on this Aspx web form. What they do is load the labels for a radio button list from an ObjectDataSource object. Well this is the first time I have ever heard of an ObjectDataSource. The problem is that I don't even know where this object is pulling data from. With a SqlDataSource object, I can easily view the flyout menu to see the sql query where the data is being pulled from. Anyway, I need some figuring out where objectDataSourcePlanType lives and where it is pulling data from. I know I can't list the entire project, but I am sure someone who is familiar with ObjectDataSource
<tr>
<td>Type of Plan</td>
<td><img alt="Required" src="/Images/arrow.png" /></td>
<td>
<asp:RadioButtonList ID="radioButtonListPlanType" runat="server" AutoPostBack="True" DataSourceID="objectDataSourcePlanType"
DataTextField="PlanTypeName" DataValueField="PlanTypeId" OnSelectedIndexChanged="RadioButtonListPlanType_SelectedIndexChanged"
RepeatColumns="1" RepeatDirection="Vertical" AppendDataBoundItems="true">
</asp:RadioButtonList>
<asp:RequiredFieldValidator ID="requiredFieldValidator10" runat="server" ControlToValidate="radioButtonListPlanType" ErrorMessage="Type
of Plan is required."
SetFocusOnError="true" />
<asp:ObjectDataSource ID="objectDataSourcePlanType" runat="server" SelectMethod="ListPlanTypes" TypeName="Candle.Web.PlanRequest.CommonWeb">
</asp:ObjectDataSource>
</td>
</tr>
Let's say in ASP.NET you have a base page class which defines a private Page_Load method which handles Page.Load. All aspx pages in your project inherit from this base page class. In this case the aspx pages would be able to call this private method. However it does not feel right that private methods can be called outside its own class? If so, privates methods cannot be hidden from outside?
View 1 RepliesI am trying to use the concept of Single Sign On (SSO) in my asp.net application.
for the purpose i have created a main domain say
mydomain.com.
now i have 2 subdomains
sub1.mydomain.com & sub2.mydomain.com.
I am running these very fine. But now I want to have a SSO for my domains. For the same have
googled lot and found some stuff such as adding machine key to web.config and specifying domain names in cookies.
But it is not at all working for me. when I specify the domain name for cookies i am unable to sign out.
I am using FormsAuthentication in asp.net.
Following is the code I have in my web.config.
[Code]....
I have the same code in web.config of each domain.
I have placed the code for each domain in different directory on my website.
for ex. mydomain.com ---------> F:/HostedSites/mydomain
sub1.mydomain.com ---------> F:/HostedSites/subdomain1
sub2.mydomain.com ---------> F:/HostedSites/subdomain2
my Authentication code is
[Code]....
and sign out code is
[Code]....
Can anybody tell me where exactly I am wrong ? what changes do i need to do at server end also.
I am checking this on my testing domain ie. mydomain.tv. can this be a problem ?
I tried to extract text from images using ocr concept with MODI.In vb and console application it will work fine but i have an error when i applied my code in asp.net ....
Code:
string name = fileupdImage.FileName;
fileupdImage.Visible = this.fileupdImage;
fileupdImage.SaveAs(Server.MapPath("images/" + name));
string path = "images/" + name;
[Code] ....
Error occurred in following line as COM unhandled exception.
doc.Create(name);
I dont know why this error occured...
i want source code about remember my password using cookies concept.
View 4 RepliesI am using asp.net mvc 2.0 to implement shopping cart application.My situation is , I have a order page, there i am adding the products to the Cart.Below it will show the Cart total.Next i will go to the shopping cart page to delete or editing the items.In this page it will show the same cart total as in the Order page.
But once again if i go back to the Order page to order some more products to the cart,the cart total in the order page is showing 0 amount. This is my Shopping cart controller action method,
public ActionResult ShoppingCart(int eventID)
{
Event e = eRepository.GetEvent(eventID);
var cart = Stalbans.Models.ShoppingCart.GetCart(this.HttpContext);
[Code]....
So once i will go to the shopping cart page from the order page and again coming back to the order page it has to show the same cart total. Actually data is persisted in the cart total but it is not showing .Because if you add one more item its amount will added to the existimng cart total and then shows the current cart total. So for the first time i click back at that it has to show the already existed cart total in the cart total value.
Here is a conceptual questions that I was going over the last few days. I have a simple application that I want to turn into a hosted solution.
My take on it is that in a sense each record in the database would have its own ID representing the hosted instance of the application, rather
than installing the application each time a new one is needed. Then I can easily differentiate between the instances, however I don't want to
store the instance ID in a session (bad for URL back links etc.) and don't really want to add it as part of the URL.
What would you suggest ?
Another part of the question would be how to pragmatically create a sub-domain representing the application instance, however that's a
Whole different question J
Am implementing the threadpool concept and have doutbt in threads being created.
[Code]....
Initially i gave (1,1) in semaphores and only one thread was created and it did only one task, and (5,5) created one thread and it used for all the times.
Is ter anything wrong in wat i did or any other way of doin other than semaphores. And mainly wat abt the remaining 20 threads in threadpool? its a waste of CPU right. Can i create only 5?
just wanted to know what are the requirements to learn asp.net i mean i know that you need to know any .net language ( i am for C#). But do u need to also know xhtml, CSS and all other stuff.
View 5 RepliesIt does not matter for me which background I come from, I want to learn the best. Which is best to learn ASP.NET web forms or ASP.NET MVC and please be specifc and give me a reason?
View 3 Repliescan anyone tell me which is best website to learn asp.net and sql well for beginners?
View 6 Repliesrapidshare,hotfile and many site they restric user to download more than one file at a time. what is their concept and how can i implement this concept by asp.net
View 1 RepliesWhich Programming Language Should I Learn? Best language to learn (for a solo web designer looking to program) Is there a general guideline of which dynamic programming language to choose to start with?
View 5 Repliesstart learning ASP.NET Help getting started in programming? I am new to programming.How can I best start to learn?
View 6 RepliesAt the moment I am starting to learn Silverlight. I have expriences in ASP.NET and like the concepts of "Masterpages. Does Silverlight provides a similar concept ? I have read a little bit about the Silverlight Navigation Framework. Is this a good replacement for "Masterpages" ?
Makes it sense to combine ASP.NET and HTML (with Javascript) with Silverlight or is it more recommandable to design and write pure Silverlight applications ? Mybe in the ner future I will start to develop an intranet (business) application which will have many and complex user interaction (it should behave like a windows client applicion). I think Silverlight is the better choice than ASP.NET !? Makes it sense also to start to use/learn the WCF RIA Services immediatly ? Are there good (VS) templates to start with Silverlight or which are a good basis / starting point for a new Silverlight application ? Unfortunately I am missing "Starter kits" on [URL] like the starter kits on www.asp.net !
I'm trying to learn the Enterprise Library. I found this useful code sample to get data from a SQL database. But I tried to send data via a parameter. I'm also using the UPDATE, DELETE, and SAVE methods. Can you give me a similar sample? I'm using Enterprise Library 4.0.
[code]....
I am facing an critical problem in Enum serialization in WCF. Here is the scenario: I have an enum like this...
[Serializable] [DataContract(Namespace = "http://www.geniusdoc.portal.com/serivces/2011/v1/GdService", Name = "AppointmentMode")] public enum AppointmentMode : int { // 1: Email, 2: Phone [EnumMember(Value = "1")] None = 1, [EnumMember(Value = "2")] Email = 2, [EnumMember(Value = "3")] Phone = 3 }
Here I decorated each enum value with [EnumMember], so that I can use the Enum as Data Contract in WCF.
And, AppointmentMode will be saved as INTEGER in database. So I need to serialize this Enum to its value. So I have specified value to each member like... [EnumMember(Value = "1")]
Problems:
If I use the above code as it is...SvcUtil not considering Enum Text, and generating the Enum in Proxy as below...
[System.CodeDom.Compiler.GeneratedCodeAttribute("System.Runtime.Serialization", "4.0.0.0")] [System.Runtime.Serialization.DataContractAttribute(Name="AppointmentMode", Namespace="http://www.geniusdoc.portal.com/serivces/2011/v1/GdService")] public enum AppointmentMode: int { [System.Runtime.Serialization.EnumMemberAttribute(Value="1")] _1 = 1, [System.Runtime.Serialization.EnumMemberAttribute(Value="2")] _2 = 2, [System.Runtime.Serialization.EnumMemberAttribute(Value="3")] _3 = 3, }
If I remove the Value from [EnumMember(Value = "1")], while deserialization is considering Enum Text, and giving results as below
<AppointmentMode>None</AppointmentMode>
Expected result:
1. Enum in the Client proxy should be same original Enum.
2. Enum Deserialization should consider EnumValue, such a way that it will return
<AppointmentMode>1</AppointmentMode>
How to get this done?
i have tables like Lookup and lookupvalues in the lookup table like and lookup values like
LookupId LookupName | lookupValueId lookupId Name
1 Country | 1 1 Usa (country)
2 State | 2 2 All(state)
3 Relation | 3 2 Colarado (state)
4 3 agenttoClient(relation)
now i want create enum class form databse
my req is
enum lookup{
Country,state,Relation(these should be come from Databse when ever application intialised)
}
now i able acces lookupvalues
lookup.country.1=>USa
lookup.State.1=>All
lookup.State.2=>Colorado
lookup.Relation.1=>Agent to client
These days I see that every other job posting requires LINQ and WCF. I have spent lot of time on LINQ, was fun to learn.
Now I want to move on to Web Services and WCF. After goggleing for some time, I am not sure either go for web services or WCF.