I have a datagrid where i am setting CSS for ItemStyle,Header style and Alternating item style in .aspx page markup as follows
<asp:DtaGrid runat="server" ID="dgScannedEsn" AutoGenerateColumns="True" CssClass="gridCls" HeaderStyle-CssClass ="clsItemHeader" AlternatingItemStyle-CssClass ="clsAlternateItemRow"" ItemStyle-CssClass ="clsItemRow" ></asp:DataGrid> [code].....
I am new to LINQ. when we drag tables we get a dbml file and designer file.
For example DataClasses1.dbml and DataClasses1.designer.cs.
Once we have them then we can start using our LINQ Queries.
In my company project I do not see this designer files and instead there are .tt files which were used as templates to greate ABC.generated.cs files. Is this same as designer class?
I am following the Nerd Dinner tutorial as I'm learning ASP.NET MVC, and I am currently on Step 3: Building the Model. One part of this section discusses how to integrate validation and business rule logic with the model classes. All this makes perfect sense. However, in the case of this source code, the author only validates one class: Dinner.
What I am wondering is, say I have multiple classes that need validation (Dinner, Guest, etc). It doesn't seem smart to me to repeatedly write these two methods in the partial class:
[code]....
This doesn't "feel" right, but I wanted to check with SO to get opinions of individuals smarter than me on this. I also tested it out, and it seems that the partial keyword on the OnValidate method is causing problems (understandably so). This doesn't seem possible to fix (but I could very well be wrong).
I don't know if this has to do with how FindControl works or how scope works. But my base class is having a hard time seeing the fields of child classes. Currently I'm planning have the derived class set a property in the base class, but there are a lot of derived classes, so that isn't a very attractive solution.
[code]....
Can I use VB and C# classes together in the same asp.net 3.5 project?
View 3 RepliesI'm curious as to what people consider better practice, between duplicating model structure in the view model and using a mapping tool to move data between the two, or aggregate the model inside the view model, i.e. have a property on the view model class that is a reference to the actual model. Which is considered a better approach in general?
View 1 RepliesI have 2 grids gvParent & gvChild I would like to filter gvChild when a row is selected in gvParent the linking fields are contractNo
I added a column for selecting:
<asp:TemplateField ShowHeader="False">
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Select"
OnClick="LinkButton1_Click" Text="Select"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
I know how to handle the filtering of the grid (create a criteria and set to rowfilter of the dataview) But, I dont know how to get the value of the column of the selected row.
I have Datagrid , i want to clcik on row and get data in textbox , but my textbox is FreeTextBox control,i tried to use javascript but work for asp.net control not working for freetext box control, how i can capture this code is sample code but it work for asp.net control but not working for my freetextbox
[Code]....
Simply put... I want to duplicate the example found at this link, in VB.net rather than C#.
[URL]
I would like the selectedvalue of the dropdown to display additional data base on its selection in multiple text boxes.
I have tried using the DropDownList OnSelectedIndexChanged property, within a DataGrid EditiItemTemplate, but I cannot retrieve data from the selection. (AutoPostBack is "True"). I can however use a button onclick event to fire a "prre-defined" selection value.
I have a nested datagrid. I want to get header texts of child datagrid, bifore binding process.
Is there a way to do this?
I have 2 datagrid (using .net 1.1). I need to access column of second grid ( i need to make a column of second grid as disabled) when i click "Cancel" link button in First Grid. How can this be done?
View 7 RepliesI had called the data from query to data table and now i have a gridview in which i am using one datalist and 2 text boxes and and reming coloumns are bounded iahve to assiaign them values which datatable have either null or any value.
View 2 RepliesI have "Order" object with Columns Ticket,OTP and CustomerName etc.Intially on DataGrid, I'm binding Ticket only , when user clicks on "Column Chooser" button, another windows appears to pickup CustomerName,OTP columns to add specified column dynamically on Datagrid. Environment : Asp.net ,C# with Object Data source
Public Class Order
{
publc void Order()
{
}
public string Ticket
{
get
{
return this.strTicket;
}
set
{
this.strTicket = value;
}
}
public string OtpNumber
{
get
{
return this.strOtpNumber;
}
set
{
this.strOtpNumber = value;
}
}
public string CustomerName
{
get
{
return this.strCustomer;
}
set
{
this.strCustomer = value;
}
}
}
}
have code that's using session variables; it's both in the master page code behind and in the code behind of some aspx files. I wanted to put this code in a function that's in a different file but when I did that, the statement Session["VariableName"] became underlined in red on the word session. What am I missing?
View 1 RepliesI copied this sample class and posted it inside of a website in a folder called APP_Code. The page is called class1.vb.I donot understand Classes at all.How do I use this on a webpage (like the index.aspx page)?
Imports Microsoft.VisualBasic
Imports System.Data
Imports System.Data.SqlClient[code]......
I found datetimepicker class in one project . i.e C# project , in this project he/she created one class named as datetimeextensions.cs.
so then he/she imported in to one view and used like this .
[Code]....
i added this class in to my project and i tried to import but it doesn't appear in extensions?
1) I'd like to make use of the built in membership system. Easy enough by itself. However, I wonder if I should still be building an entity around the User and Role classes since they aren't part of the custom database. As such, they aren't part of the domain's aggregate chains either.2) My entities contain the better part of my business logic. For example, my Category entity has the following method: AddForum(User user, Forum forum). All logic tests are performed there and applied, or not, to the private forums collection. What I am wondering about here is the appriateness of service classes. In the traditional mvc style, a service class operates between the controller and repository to perform business logic. With domain design, we do it in the entities. Should I still be using these, now superfluous service classes? Or should I save them for when something is really needed that isn't part of the domain itself, such as an EmailService
View 2 RepliesI'm using Entity Framework to create my data objects. Here's what my designer.cs file looks like:
[code]....
But my validations aren't loaded. If I try to submit the form with no value for Name, I get an error message saying The value '' is invalid. instead of my error message.
I'm implementing n-tier structure in the current app I'm working on. Because DataBinding a list of my Objects to a Repeater was far too slow I need to databind a DataTable to the Repeater. Should I still DataBind to a Function (that returns a DataTable) in the BLL that calls a Function in the DAL that returns a DataTable?
View 2 RepliesI'm trying to learn ASP.NET programming and here's my first big issue I need to solve:- I like to keep code separate from presentation so I've decided to use code-behing model - I've created default.aspx + default.aspx.cs and everything works nicely- Inside default.aspx.cs, in
[Code]....
I want to instantiate an object where its class is declared in a separate file and is part of a separate namespace. This is a simple PDF generation class that I wish to develop and use in other web and also desktop projects, that's why all these separation.- As a web developer I tend to avoid all kind of IDEs, as a result of this I am independant and I know every line of code in details. Do you think it is possible to bypass VisualStudio and code all the projects by hand? I believe this is quite possible with pure C# code but what about the problem I've described above? Can somebody please write the minimum directive(s) to include an external class or file. (I know about VS 'Add class...', etc. )
In ASP.NET I have a form that has a Textbox named txtOutput and a button. In the main file.aspx.vb I can call a function from the button handler and in that function I can have
txtOutput.Text = "Some Message"
with no problem. I have a bunch of functions in several other classes. For instance I have a class named AbleCommerce that does some database functions. These functions are called from my main class. In those functions, however, I have no visibility of txtOutput. All of my classes are, unfortunately, in the default namespace which I understand is not optimal but didn't seem to impact this issue.
I know this is an easy one I've just not understood properly but it has me stumped. My gut says that I probably need to pass the Textbox object to my "other class" but can't for the life of me figure how.
i am wondering if i got a label that works out a price in default.aspx and then i want to show it on an invoice Invoice.aspx with Button.Attributes.add("onclick","popup(this)"); with java popup to show my invoice on button click how i am gonna get that label that works out the price to invoice.aspx?
here is my code sample,
[code]....
I am working on a class library using C#. I have designed 3 main classes to model our data. They are designed such that class A contains a list of class B instances, and class B contains a reference to a class C instance, ie:
[code]....
I feel like the class design works well for modeling the data and our business rules, but it does create a few limitations like the above situation. I liked the separation of the PolicyTerm and Billing for the ability to allow that code to be modified and tested independently. Also, I feel like it keeps each section smaller and simpler.
what are the namespaces that should be well known by a fresher to initiate asp.net learning, what is the main use of a namespace. what is the use of 'args'
View 4 RepliesI am changing my ASP.NET app to use a web farm. To do this, I need to change the session state from in-proc to a State Server. To do this, it is my understanding that the classes that are used must be marked as serializable. How can you tell if that is possible with a class? Will you get an error at compile time if it is not possible?
View 2 Replies