If I have the following code:
TextBox txtUsername = new TextBox();
void setEnabled(string str, bool enable)
{
// use str to find the TextBox object
// str.Enabled = enable;
}
Is this kinda thing even possible? I want to be passing in 'Username' and then be prepending it with 'txt'.
Can somebody justify this statement with example: delegates represent methods that are callable without knowledge of the target object. i am not getting how we are hiding the function name at the UI.
View 4 RepliesI get following error: Target string size is too small to represent the XML instance
When I do this: repeater.DataBind();
How can I avoid this?
<asp:CheckBox oncheckedchanged="chk1_CheckedChanged" ID=chk1 CssClass='<%# Eval("UserID") + "," + Eval("IsB") %>' runat="Server"/>
I got this check box on my page..if I need to assign these two values of CommandArgument in CssClass attribute ie <%# Eval("UserID") %> and <%# Eval("IsB") %> to two strings in my code behind..How do i do this?
protected void chk1_OnCheckChanged(object sender, EventArgs e)
{
string s1 = "Need the first value from Command argument here";
string s2 = "Need the second value from Command argument here";
}
how do i fetch those command argument values passed in CssClass attribute of checkbox?
When my LinkButton1 button is clicked in the gridview below, I would like the Gridview1_Rowcommand to assign the ID1 to the index variable. I am getting a "Input string was not in a correct format." error. The e.command argument is an empty string
View 4 RepliesI have this following problem in Visual studio 2005, VB and sql server 2005.
when i am trying to read the data from the database getting this error ("I have this following problem in Visual studio 2005, VB dot net application")
[code]....
' we run this application in around 10 braches. Its getting failed only in 1-2 braches. Rest of the Breches code is running well. ( all System configurations are same in all the braches )
I am getting object refernce error at line:if (Session["Tax"].ToString() == "9")
protected void Page_Load(object sender, EventArgs e)
{
if (Session["Tax"].ToString() == "9")
{
lblTax.Text = Session["Tax"].ToString();
}
else
{
lblTax.Text = "0";
}
}
Is anything wrong I have done?
<%@ Import Namespace="System.Data.SqlClient" %>
<script runat="server" >
Dim connStr As String = ConfigurationManager.ConnectionStrings("cc").ConnectionString.ToString
dim db As New Data.SqlClient.SqlConnection(connStr)
why this error
Object reference not set to an instance of an object.
on VWD 2005 this code works fine, but on 2008 it says I haven't created an instance of the object. I want to convert the object connString (a connection string) into a string.
'This acceses the virtual directory web.config file for connection strings
'We have to convert the object to a connection string
Dim rootWebConfig As System.Configuration.Configuration
rootWebConfig = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("/VirtualDirec")
Dim connString
As System.Configuration.ConnectionStringSettings
connString = rootWebConfig.ConnectionStrings.ConnectionStrings("ConnectString1")
Dim strConnString
As
String = connString.ToString().......
I'm trying to create a simple Guestbook web service using ASP.NET WebServices. When trying to serialize a list of objects, I get the following exception:
System.InvalidOperationException: The type of the argument object 'GuestBookService.GuestBookEntry' is not primitive.
How can I fix this error?
public class Package
{
public Package()
{
name = "";
type = new List<Dictionary<string, string>>();
}
public string name { get; set; }
public List<Dictionary<string, string>> type { get; set; }
}
[code]...
What would be the best way to deserialize this
Dictionary<string, object>{
{"fName", "John"},
{"lName", "Doe"},
{"email", "john@doe.net"}
}
to this
class Member{
string fName;
string lName;
string email;
}
I need to load an XML document into my Dictionary<string,string> object.XML looks like:
<nodes>
<node id="123">
<text>text goes here</text>
</node>
</nodes>
How can I do this using XmlDocument?I want readability over performance, and I find XmlReader to be hard to read b/c you have to keep checking the node type.
I'm a novice developer writing an ASP.NET application with VB. I'm having a little trouble getting my head around the partial class concept. If you use the partial classes as a code-behind for the presentation, how would these be represented in UML, in particular with a class diagram?
View 2 RepliesI'm using a text box in a template field to perform an insert with an object data source. What exactly does the "ProductID" refer to in this example? Is it the column in the db or the business object?
[Code]...
how to create C# classes to represent one to many relationships in C#. I have a Customer and an Address table in my database. I also have a Customer class in my C# solution but how do I introduce the multiple address element? Do I have a separate Address class? Do I create a subclass in the Customer class or create a method in Customer called GetAddresses of type List which contains all of the relevant logic? In my code I need to be able to return a customer with all associated addresses and I just cannot picture the best way to achieve this using OOP.
View 9 RepliesI have an object of my class
as myclass obj=new myclass();
now i want ot access this object by using string value such as
String s="AA";
now i want to access the object by using AA, is this possible and how?
i'm new with design patterns and i'm not sure if in this situation i can use a composite pattern.
The scenario is a web application for an address book : the address book cointains AddressBoookItem, generalization for Contact and ContactGroup. The last one is the composite object containing a collection of AddressBoookItem.
With these scenario i'm sure that this is a composite pattern, but what is confusing me is that a contact may belong to many contactgroup. Does this request change the situation? Till now i thought that between the Leaf object and the Composite (in the composite pattern) there was a 1-to-m relationship (a composite may contains many leaf but a leaf is contained in only one composite object). Can i still use the composite pattern ? And, the last question,
How could i represent my scenario in a relational database? One table for the entire hierarchy or two table (Contact and ContactGroup) with a m:n relationship between them ?
I need to design a system that will control access to certain information. The requirement from the user is to use access levels e.g.
Level 1 - Support
Level 2 - Manager
Level 3 - Senior Manager
Level 4 - Department Head
etc.
If a certain piece of information is marked as Level 1, then all roles should be able to view that piece of information. If it is marked as level 3, then only the Senior Manager and Department Head can view it, but the Manager and Support roles can't view it.
Questions
When I assign the access level to a piece of information, will I have to assign multiple roles to it in order for me to achieve this functionality? Is there a better way of doing this?
Currently I have a class that represents a document. This document needs to be displayed as HTML. I would like to have a method to call such as GetHTML() that would then call GetHTML() on any properties/sections of the document that needed to be rendered. I was initially thinking about using linq and XElement but am wondering if that may cause issues with certain tags in HTML. Would I better off using an HtmlTextWriter?
View 2 RepliesI'm having trouble, I have a component called Search that has a SearchCars method I use both in the objectdatasource control like this:
<asp:objectdatasource
selectMethod="SearchCars"
typename="Search"
my question is what type of object should I return from the SearchCars method?
the method seginature accepts a business entity object "Car"
like that
public ????? SearchCars(Car car)
i am working on a social networking project using MVC2 visual studio, currently i am working on these two tables , post & comment. Each post can have many comments.i have created a post controller along with the related view , and it work well , now i want to add under the post a comment view, where a post can have many comments , i can add the comments on different view , but i need to have a post and under it to add many comments, so how i can do so?
another problem is that in the post table there is a field representing a rating, now i can add in the rating field 1, 2,3,4,5,etc, but i need this field to be viewed as a list having values from 1-5?
If I have a string containing valid JSON
how can I convert to an obect in c#?
can i add string builder object to a dictionary object? If yes code it. I mean i have a dictionary in which i have already added a few (string, objects), and i have a string Builder which has few variable already added now i want that instead of passing 2 different object in a method i want to pass only one object so can i add string builder object to same method as well
View 2 Replieserror cannot convert from 'object' to 'string' The best overloaded method match for 'System.IO.File.Exists(string)' has some invalid arguments
string theUserId = Session["UserID"].ToString();
OdbcConnection cn = new OdbcConnection("Driver={MySQL ODBC 3.51 Driver}; Server=localhost; Database=gymwebsite2; User=x; Password=x;");
cn.Open();
OdbcCommand sc = new OdbcCommand(string.Format("SELECT picturepath FROM Pictures WHERE UserID ='{0}'", theUserId), cn);
[code]....