[reference] Forum Topics

Good day guys! I just want a little help on how to reference a repeater control in a function. Im using c#.net. My code below: private void Load_Childrean_byTypeID(int TypeID, **repeatername reference here**) { SqlDataAdapter mycommand = new SqlDataAdapter("Select Id, FoamType_ChildName, ChildIcon_ClassName, ParentTypeID From tbl_ProductType_Children Where ParentTypeID = " + TypeID, …

I have some doubts concerning some basic C++ concepts, and would be very thankful, if someone would kindly clear the doubts: a) Every variable of a data type occupies a specific amount of memory, like int occupies 2 bytes and so on. So, if I declare a reference variable as, …

Hi All, I would greatly appreciate considered recommendations on books pertaining to HTML5, CSS and Javascript, for starters, either as dedicated subject reference or in some combination. If a combintion of these subjects are addressed in a given book then additional subject matter (such as game applications, jQuery, mobile applications, …

why this code not work ?? # include <stdio.h> void get_values(float *r, float *v); float do_calculations(float resistance, float voltage ) ; void display_answer(float current); main() { float resistor; float volts; float current; //explain_program(); get_values(*r, *v); current = do_calculations(resistor, volts); display_answer(current); } void explain_program() { printf("This program calculates the current in …

Dim item As String = InputBox("Enter Item ordered", "Place an order") Dim quantity As Integer = InputBox("Enter Quantity odered", "Quantity ordered") Dim price As Integer = InputBox("Enter price", "Price each") Dim item As String = InputBox("Enter Item ordered", "Place an order") Dim WrapCharacter As String WrapCharacter = Chr(13) + Chr(10) …

I'd like to find an algorithm book that's either meant to be or good to use as a reference. By "reference" I mean that it contains all the basic algorithms (machine-learning algorithms especially) like QuickSort, Logistical Regression, Clustering. Preferably, including both the mathimicatical definition as well as psuedo code, or …

Hi guys, I have small problem with my example code. Any hint? #include <iostream> using namespace std; class A{ public: int a; A(int i){a = i;} A(const A& rhs) // copy constructor { a = 2; } A(const A&& rhs) // move constructor { a = 3; } }; void …

Hello, I have another question about dynamically compiled code. I am using the VBCodeProvider class to compile, test, and run "scripts" that users type into my program (Code Below). Public Function Compile(ByVal vbCode As String, ByVal argsString As String) As Object Dim oCodeProvider As VBCodeProvider = New VBCodeProvider ' Obsolete …

I keep getting loads of linker errors that probably have something to do with virtual-functions/definitions and/or static class members... I've seen several relevant posts but none of the solutions suggested work, can you see wht the problem is here? My projects consists of 3 files: BALLS.H #include <iostream> using namespace …

I have an array ($arr) of arrays ($ar) in which I want to describe the columns in a report. The salient elements include the column headings and the MYSQL field to use: Array ( "City", 12, 29,"Y", "City_date", "City_Total" ), Array ( "Atmos", 8, 23, "Y", "Atmos_date", "Atmos_Total" ), etc. …

I get error #91 at line 114 (Object reference not set to an instance of an object). What do I need to do to correct that. (I get the error either pre-declaring X or as it is now) Thanks Dim iterAAA As Single = 1 54: 55: Dim arraydciP(3) As …

I don't know if what I would like to accomplish is possible in VB, but here it is. Lets say my program creates a set of labels at run time. These labels will be named Label_n (n being an index value to uniquely identify the object). Later in my program, …

Hi guys, I am confused on how can I access a same class reference object , that is created in class ReadInoiceFile, and be accessed in ReadErrorFile. To be more specific: I have a class called Transaction And then I have a class called ReadInvoiceFile. And finally I have a …

Hi I have a set of Checkboxes each with a Textbox next it to. I have the following code, which is meant to loop through each CheckBoxe and if checked if gets the text contained in the textbox, these are linked through the tag of the checkbox, i have used …

i am a beginner. i need online tutorial for shell scripting. there are many on the web.. which one to choose??

i have a problem when updating database. i need to update stock value in other table and count it and update to another table again. here the code : 'in every row on 'SalesDetailBindingSource' For Each SalesDetailData In SalesDetailBindingSource MsgBox("SalesDetailData : " & SalesDetailBindingSource.Count) 'dim use to take parameter Dim …

I'm trying to make a program for my computer science class and it requires that I run output to the console as well as to a file. I'm looking for a way to intialize a string at the beginning of the program and pass the variable by reference to my …

Hello, When i compile i get theses undefiend reference to extern lobal variable. In my code, i try to do an file that define it and extern it on SystemeBataille.cpp call th definitor on main.cpp but same error. If i place my extern on an specific function exemple SystemeBataille::placeExternHere i …

double & val = 66.6; //illegal const double & val = 66.6; //legal I was just doing some demo programs and came through the above concept but not able to identify what exactly the need of the above concept . what magic exactly const is doing in the second case …

Hi all, To begin, I'm not certain this is the proper place to start this question, but I believe this to be a linux-linker related error rather than a code based one. I've also searched far and wide for a solution online, but others have solved the problem simply include …

I have two forms that share data between eachother. 1. In Designer view of Form2 I establish a public variable. public bool isMyFormValid 2. When I attempt to access the variable in Form1 like this... if (Form2.isMyFormValid = true) { //do this} C Sharp no likey... I get this message: …

hi i am trying to build an application coded in C# and i has using MSFileIO = Microsoft.VisualBasic.FileIO; and giving an error "Error 1 The type or namespace name 'FileIO' does not exist in the namespace 'Microsoft.VisualBasic' (are you missing an assembly reference?) UZipDotNet " how do i add the …

Button1.DoDragDrop(BackgroundImage, DragDropEffects.None) Throws an error ' Object reference not set to an instance of an object. ' First time I've used DoDragDrop, and first time with 2012 :)

class Account { Long accNum, pwd} public class Banker { public static void main(String r[]) { new Banker().go(); // do more stuff } void go() { Account a1 = new Account(); a1.accNum = new Long("1024"); Account a2 = a1; Account a3 = a2; a3.pwd = a1.accNum.longValue(); a2.pwd = 4455L; } …

I am trying to implement a function sameMonth from a class to compare two user entered months. My class is declared in a header file "Date.h": #include <iostream> using namespace std; class Date { private: string month; int day; int year; public: Date(); Date(string aMonth, int aDay, int aYear); void …

# convert2.py # PPython Monty # Lab 2 Ch 2, PE 4 # A program to convert temperatures from Celsius to Fahrenheit and # vice versa def main(): # description of program print("This program converts Celsius temperatures to Fahrenheit and") print("vice versa.") conversion = ("C") n = eval(input("How many temperatures …

Given: Sour extends Blue extends Pan `Pan p4 = new Sour();` Then set of 6 new statements given and asked to choose which ones will compile. They are: 1. `Pan p5 = p4;` 2. `Pan p6 = (Blue)p4;` 3. `Blue b2 = (Blue)b4;` 4. `Blue b3 = (Sour)p4;` 5. `Sour …

Compiles fine. But at runtime it gives ClassCastException. My doubt is that why is it so even though st which is of type Sample1 gets casted to Sample2 and generates exception even though Sample2 IS-A Sample1.

I am trying to use function reference, to return values from an array inside an function. I need to echo info to 8 different places on a page, and was trying to do this by using a refernce. But havent much exp. in that, so as of now, I am …

Private Sub DataGridView1_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellContentClick frmDisplayLockerInfo.Show() frmDisplayLockerInfo.TextBox2.ReadOnly = False frmDisplayLockerInfo.TextBox3.ReadOnly = False frmDisplayLockerInfo.TextBox4.ReadOnly = False frmDisplayLockerInfo.TextBox5.ReadOnly = False frmDisplayLockerInfo.TextBox6.ReadOnly = False frmDisplayLockerInfo.TextBox7.ReadOnly = False frmDisplayLockerInfo.TextBox8.ReadOnly = False frmDisplayLockerInfo.TextBox9.ReadOnly = False frmDisplayLockerInfo.TextBox10.ReadOnly = False frmDisplayLockerInfo.TextBox11.ReadOnly = False frmDisplayLockerInfo.TextBox12.ReadOnly = False frmDisplayLockerInfo.TextBox13.ReadOnly = False frmDisplayLockerInfo.TextBox15.ReadOnly …