hi my dear friends : why the below alert always shows me null? <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Keyup._Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" ...
hi my dear friends: The pages on my project are base on master and content pages... I want to do something with javascript(rather than jquery) in one of content pages after ALL OF MASTER AND CONTENT ELEMENTS ARE LOADED COMPLETELY.(for example set focus on a RadComboBox Control) For doing that I used the below code : <asp:Content ID="...
I am currently working on a .net MVC solution where the model is basically built up from several entities that are defined in an EDMX. The problem that I have is that if a user does not enter a value for a non nullable value (in this case a decimal) the null value can't be identified as we can't put null in the model. I know you can ...
I am trying to implement search funtionality for our database through a website. The database has one master table and five tables that are foreign keyed to the master (detail tables). Detail tables hold nullable integer values that are hooked to lookup tables in the application. I want to allow a user to select any/all values from a loo...
when there's no rows returned from the database. Will I always get a List object of Count = 0. Will there ever be a case where the List = null? ...
I've created a trigger in ms sql server 2005. The trigger is supposed to update orderdata. Example: table id order 1 1 2 2 3 3 4 4 Update so that id 4 has order 2 would create. table id order 1 1 2 2 3 3 4 2 With my trigger, after this it would automatically create. table id order 1 1 2 3 3 4 4 2 My table obviously l...
I have a string which can be empty if its not empty it is containing a xml document. The problem is null values are allowed in this dataset column of DataType System.String. Error Message:this.MetaData' threw an exception of type 'System.Data.StrongTypingException' base {System.SystemException} = {"The value for column 'MyData' in tabl...
hello, i am getting an string from using swing and i need to validate if it is not null i use this code if(site.equals(null)) { System.out.println("null"); } else { System.out.println("notnull"); } it always show "notnull" if there is null also ...
Possible Duplicate: Setting variable to NULL after free I am learning about good C programming practices and my friend told me to always set the pointers to NULL after free()ing them (or calling a specific freeing function). For example: char* ptr = malloc(100); ... free(ptr); ptr = NULL; or struct graph* graph = create_...
Hi all, I have a formview that is bound to an object data source. The object that is it bound to has certain nullable fields such as dates etc. When the textbox that the user enters the date is empty if I do not intercept the formviews iteminserting/updating events and change the e.NewValues["datefield"] to null then the datasource get...
This part of my code checks to see that when the user clicks on a contact, the contact actually has a phone number, otherwise a message is displayed and nothing else is done. I am confused as to where my null pointer exception is coming from.... Uri contactData = data.getData(); Cursor c = managedQuery(contactData, null, null, nu...
I'm working with an array of objects in Javascript and need to sort them by date and time. Here's the setup: place title date (optional) time (optional) Conceptually, the application allows users to create a list of places they're planning to go. The array of events is manually ordered at first, and users can optionally add date ...
hi, How do i count null values while making cross tab query? I have a table with three colums [id, name, answer] i have following records: ID NAME ANS 1 ABC 1 1 ABC 0 1 ABC NULL 2 XYZ 1 2 XYZ NULL 2 XYZ NULL 2 XYZ 1 2 XYZ 0 1 ABC 0 now i would like to get my result: ID Name NULLCO...
I don't want the label to show if the field is null. In my database rows, data isn't complete for all columns. I thought this would work: <% if(# Eval("recipe_by") == null){%><br /><br /><%} else {%>Recipe by: <br /><br /> <asp:Label ID="recipe_byLabel" Font-Bold="True" runat="server" Text='<%# Eval("recipe_by") %>' /> } I get this...
This code stopped doing anything at all after I changed something that I no longer remember #Dash Shell import os import datetime class LocalComputer: pass def InitInformation(): Home = LocalComputer() #Acquires user information if (os.name == "nt"): Home.ComputerName = os.getenv("COMPUTERNAME") Home.Us...
I once read that having nullable types is an absolute evil. I believe it was in an article written by the very person who created them(in Ada?) I believe this is the article Anyway, so what if by default a language like C# used non-nullable types? How would you replace some of the common idioms in C# or Ruby or any other common language...
I can check for a DBnull on a data row using any of the methods. Either by using if(dr[0][0]==DBNull.Value) //do somethin or by doing if(dr[0][0].ToString().IsNullOrEmpty()) //do something In Both Cases I will be getting same result. But Which one is conecptually right approach. Which was will use less resources ...
SQL Syntax is still something I am learning. I am getting the error noted below the this snippet of code. SELECT CASE WHEN LTRIM(RTRIM(cLehmanNo)) =' ' THEN NULL WHEN cLehmanNo IS NOT NULL THEN REPLACE ( cLehmanNo,SUBSTRING (cLehmanNo,PATINDEX( '%[^a-zA-Z0-9 '''''']%',cLehmanNo),1), ' ' ) END asLOAN_NUMBER ,CASE WHEN ...
So I've got one main view with some images on it, and when someone touches one of the images, the image will return an ID number to this main view and then this view will present a modal view controller to display a larger version of this image. But the current way I'm doing it, the function on the modal controller is getting there befor...
On my 8-bit Freescale HCS08 micro, whenever I call a library function that returns values to pointers I pass it, and I don't really want them, I threw in a NULL, e.g. UART_SendBlock((char *)txstr, strlen(txstr), NULL); The type of the last argument is uint16_t * and returns the number of characters actually sent, a value I don't care...