Visual C++ :: Making Combobox Drop UP In MFC?
Nov 21, 2012I'm using MFC, and I need to make the combo box drop down list to be draw up - above the contro, instead of below it. How to make this happen?
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Visual C++ :: Read Table And Get All PNAME Into Combobox - Reduce Query Execution Time
Nov 14, 2014My table:
Code:
Database name: test & Table name : Profilemaster
+-----+--------+
| PID | PNAME |
+-----+--------+
| 1 | APPLE1 |
| 2 | APPLE2 |
| 3 | APPLE3 |
| 4 | APPLE4 |
| 5 | APPLE5 |
| 6 | APPLE6 |
| 7 | APPLE7 |
| 8 | APPLE8 |
| 9 | APPLE9 |
| 10| APPLE10 |
+-----+--------+
I like to read the table and get the all PNAME into the combo box.
Using the below code i can read the table, but while loop takes 2 seconds to read 10 records in the Profilemaster table.
How can i reduce the reading time?
My Code is
void MainScreen::OnreadProfileName() {
CDatabase database;
CString SqlString;
CString sDsn;
CString pname;
sDsn.Format("Driver={MySQL ODBC 5.2 ANSI Driver};Server=localhost;Database=test;User=root;Password=client;Option=4;");
[Code] ....
Is any other way to reduce the query execution time?
Visual C++ :: Making Octagon Out Of Right Triangles
Jun 28, 2014One exercise says that, "Define a right triangle class. Make an octagonal shape out of eight right triangles of different colors."
Making such a class isn't difficult. I wrote it as follows:
Code:
#include "Simple_window.h"
class right_triangle : public Shape {
public:
[Code]...
But it sounds that making an octagon using eight right triangles isn't possible!
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#include <iostream>
using namespace std;
int main()
{
[Code]....
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#include <iostream>
#include <cstdlib>
#include <cmath>
#include <ctime>
using namespace std;
int main() {
int playerScore[4];
[Code] ....
Visual C++ :: CEdit Control As A Child In A CListCtrl For Making Each Column Editable
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string decrypt (string encrypted) {
string deleted, tmp;
int i, pos, n, j=0, z;
tmp=encrypted;
[Code] ....
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Sep 12, 2014I am trying to fill a combobox using the data from a txt file, with the new line as a split.
Currently it is throwing a System.ArgumentException in mscorlib.dll
try {
string[] lineOfContents = File.ReadAllLines(Properties.Resources.departments_list);
foreach (var line in lineOfContents) {
string[] tokens = line.Split('
[Code]...
My txt list is a resource in my project.
Accounts,
Power,
Commercial,
Procurement,
HumanResources,
Plant,
IT,
Reinstatement,
HealthSafety
why this is throwing the exception?
C# :: WPF Binding List To ComboBox
Sep 30, 2014trying to bind a List of Objects to a ComboBox (just for testing) but I can't seem to get it working :S
This is how my Object is setup:
public class User
{
public string ID { get; set; }
[Code].....
C# :: Link Combobox With SQL Column
Oct 19, 2014When I try to link combobox with sql column i get error !!
void comfunction() {
string constring = "Data Source=LC-VAIO\SQLEXPRESS;Initial Catalog=sample1;Integrated Security=True";
string query = "select * from tbltest";
SqlConnection cn = new SqlConnection(constring);
SqlCommand cmd = new SqlCommand(query,cn);
SqlDataReader dreader;
[Code] ....
I got error from "string sname = dreader.GetString("name"); "
And this how i try to link it...
C# :: Adding Value To ComboBox After Button Is Pressed
Mar 10, 2014I have been learning C# so I've been dragging and dropping. I have a "First Name" and "Last Name" text field. I want to add this to a combo box called something like "User List", which will list the last named then the first names. However I figure I can work with something that can get me to store the names in the combo box.
So. I have two things I need to know:
What do I have to do to have when the button is pressed, add to the combo box?
Is there a way to retain all the entries I have entered? Or no?
C# :: Find Event For Combobox When Its Selected Value Changes
Jan 28, 2015I'm trying to find an event for the combobox when its selected value changes , but I can't seem to find the right one since I've tried several events in the dataGridView that are just triggering at the wrong moments. I need to remove the selected item from that combobox so that it doesn't get selected again at the second combobox which usually have the same items .
View 5 Replies View RelatedC# :: Select Next Item In Combobox Dropdown?
Mar 14, 2014I'm having issues with selecting the next item in sequence in a combobox dropdown. The dropdown consists of letters A-Z and there is a timer that I have running to change the letter every x minutes. What I need to do is if, for example, letter A is selected, when the timer goes off, it will change to letter B, etc. If it's at letter Z, it needs to go back to the first item, letter A.
letterCode.SelectedIndex = letterCode.SelectedIndex + 1;
if (letterCode.SelectedIndex >= 26)
{
letterCode.SelectedIndex += 0;
}
I have the above, but I keep getting an error:
InvalidArgument=Value of '26' is not valid for 'SelectedIndex'.
how to get this working (letter changing logic block).
C# :: Get Selection From ComboBox / Getting Binding Path Instead?
Nov 19, 2014I have a comboBox that I created in XAML using using binding and I'm unable to get the selection. I've tried everything I could think of or find on, but no luck.
Here's the relevant XAML and C# code for the comboBox:
<ComboBox Name="projSelected" Selectionchanged="projSelected_Selectionchanged" HorizontalAlignment="Left" Margin="424,27,0,0" VerticalAlignment="Top" Width="199" DisplayMemberPath="proj"/>
projSelected.ItemsSource = DAL.projectList;
Then here is where I try to check the selected value:
private void projSelected_Selectionchanged(object sender, SelectionchangedEventArgs e) {
projectDataList.ItemsSource = null;
projectDataList.Items.Clear();
[Code] ....
And here is my output in the MessageBox that I'm using to test the code:
Quote
project=Website selected=employeeProjects.project