64,152 Solved Topics
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| | I am using the (EditingControlShowing) event to Enable AutoComplete in DataGridViewComboBox Column. private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e) { if (e.Control is DataGridViewComboBoxEditingControl) { ComboBox combo = (ComboBox)e.Control; ((ComboBox)e.Control).DropDownStyle = ComboBoxStyle.DropDown; ((ComboBox)e.Control).AutoCompleteSource = AutoCompleteSource.ListItems; ((ComboBox)e.Control).AutoCompleteMode = System.Windows.Forms.AutoCompleteMode.SuggestAppend; } } But it has a strange behavior, when I type some characters … |
 | Hi folks. I have a strange thing happening here. I have a loop where counter gets incrememnted by 0.1 starting from 0 and up to 1. In each iterration I use the counter in an expression with modulo operator. I get incorrect result when the counter has values of 0.8 …  |
| | I like to have the name of the current method for logging purposes. For example: string Commands::test(StringTokenizer& tokens) { static string src("Commands::test"); ... _log.debug("message", src); } I'm worried that creating 'src' might cause a performance hit. I made the string static thinking it would only be constructed once, the first … |
 | I am trying to make a program that generates a random number and asks the user to input the random number generated by the computer. Anyone know how to do this? This is my program: #include <iostream> #include <cstdlib> #include <ctime> using namespace std; int main() { int one; time_t … |
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| | Hi there, I'm currently rewriting my dynamic urls using mod_rewrite which is working fine. I'm just wondering how best to handle pages that don't exist. Right now it works by getting the page id and displaying the content, if the pageid doesn't exist it displays a custom 404 message. What … |
 | HI i have this error null reference i don't know why Imports System.Data.SqlClient Imports System.Configuration Imports System.Configuration.ConfigurationSettings Public Class Form1 Private ConName As New DataAccess Private Sub cmdconnect_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdconnect.Click Dim conn As String Dim m_server As String Dim m_db As String m_server … |
| | Hi, everyone! This is my first post ever here in Daniweb. I experienced a problem in printing the sorted array of 5 numbers, as the following code only prints the first iteration of the loop, and it does not print the array input. Here's the code: section .data i db … |
| | I am not able to figure out what's wrong with the following code: Is it a rule to create objects in class that contains main method and then use this object to access the methods? I did exactly reverse in the following code and i am not able to compile … |
 | I am working on an application that keeps track and uses files stored on the file system. Users are allowed to open, create, delete and move files in the file system. Meanwhile my application is not constantly running so I can't keep track of all changes real-time. Afterwards my application … |
 | I have written a mysql query- SELECT questions.id,questions.date,questions.title,users.user_name,subjects.subject FROM questions INNER JOIN topics ON questions.topic_id=topics.id INNER JOIN subjects topics.subject_id=subjects.id INNER JOIN users ON subjects.id=users.sub1 OR subjects.id=users.sub2 WHERE users.id=8; which is giving error- #1066 - Not unique table/alias: 'topics' .i am unable to understand the problem. |
| | i have the folowing code <?php $datumeind = date("Y-m-d");// current date $datumverleden = strtotime(date("Y-m-d", strtotime($datumeind)) . " -99 year");//current date -99 years $datumbegin = date('Y-m-d', $datumverleden); if(isset($_POST['zenden'])) { if($geboorte_datum <= $datumbegin && $inleven_dood == 'In leven' ){ ?> <script type="text/javascript"> <!-- var r=confirm("Klik ok als In Leven."); if (r==true) ("<?php … |
| | mysql Inner join problem I have written a mysql query- SELECT questions.id,questions.date,questions.title,users.user_name,subjects.subject FROM questions INNER JOIN topics ON questions.topic_id=topics.id INNER JOIN subjects topics.subject_id=subjects.id INNER JOIN users ON subjects.id=users.sub1 OR subjects.id=users.sub2 WHERE users.id=8; which is giving error- 1066 - Not unique table/alias: 'topics' .i am unable to understand the problem. |
| | Hi I am unable to retrieve values from json object.The json data as coming like this when observe from firebug : [{"PROJECT_ID":"CASEENO"},{"PROJECT_ID":"DARKROOM-2"}] This is my ajax code: $.ajax({ type: "POST", url: "getdata.php", dataType: "json", data: { 'dataString': projectid }, cache:false, success: function(data){ alert(data); for (var i = 0; i < … |
 | I have a rootnode and its value is (1) then it's childnode is (2,3) I add childnodes to (2) but on (3) I do not know. how can I add childnodes to 3? |
| | Hello everyone, I progress step by step my problem, one step is passed -now I can send string datas -text messages- here another step is I want to record some audio sounds by using microphone in first android emulator assume phone1 and send to second android emulator-phone2-. I found whole … |
 | Hello Community, I was wondering if its possible to make an editor like [Notepad++](http://notepad-plus-plus.org) (I'm talking about the text area). So it will change the colour of the words (funtions and commands) also with the margin with the numbers and the code folding. Please help with what you can even … |
 | this is my code:: <!--school.xml--> <?xml version="1.0" encoding="ISO-8859-1"?> <?xml-stylesheet type="text/xsl" href="school.xsl"?> <UCSC> <student> <name>Isuru ilangakoon</name> <age>21</age> <contct_no>0714234672</contct_no> <degree>computer science</degree> <school>DVharmapala college</school> </student> <student> <name>randika malinga</name> <age>22</age> <contact_no>0713567134</contact_no> <degree>computer science</degree> <school>Nalanda college</school> </student> <student> <name>vinod kawinda</name> <age>22</age> <contct_no>0783451024</contct_no> <degree>computer science</degree> <school>maliyadewa college</school> </student> <student> <name>Inshaf mahatt</name> <age>21</age> <contct_no>0777234151</contct_no> <degree>ICT</degree> <school>D.S.Senanayaka college</school> … |
 | I am not new to OOP I am tidying up a very large site of mine and trying to create a much better structure (more in keeping with the whole point of OOP). I have decided to use mysqli (please don't suggest PDO as I have decided againast it) which … |
 | Can you Close or Exit an application from within a Sub or what would be the 'best practise' for Exiting when the app has failed a logic test? My app checks for the existance of various files in a Sub Routine off the Form_Load and writes to a log along … |
 | hi guys, need your help on this. had a form on html and saving data to mysql but it's not working here's the html code: <html> <body> <table width="300" border="0" align="center" cellpadding="0" cellspacing="1"> <tr> <td><form name="form1" method="post" action="insertac.php"> <table width="100%" border="0" cellspacing="1" cellpadding="3"> <tr> <td colspan="3"><strong>Insert Data Into mySQL Database … |
| | i have the following situation. how can I change the value in the column in a dataGridView? thanks! |
| | I'm trying to learn Java, pretty easy so far as my previous experiance is with C/C++. I was just curious how to call java classes from different files. That way I don't have to have main as well as all of my classes crammed into one file. I'm sure the … |
| | I am trying to make something like a firewall but it isnt a firewall it is just suppose to see all the incomming and outgoing connections of each port. And put the IP address and port into a .txt file. Basicly creating a log of incomming and outgoing connections. Nothing …  |
| | I use code::blocks as an IDE but now i want to create a .dll file. I have followed this tutorial however it is for VC++. TUTORIAL: http://msdn.microsoft.com/en-US/library/vstudio/ms235636 I am strugeling becuase I am used to creating .dlls in C#. They are so easy. You just create a new library project. … |
| | Hey guys, Here's what I have to do: *Write a program that displays the table of Fahrenheit - Celsius temperatures. The formula is : C = (5/9) (F-32) C - Celsius, F- Fahrenheit The range should be: 0 - 200, where as the step should be set to 20. The … |
| | Please I am relatively new to Java and would really appreciate your help. Can anyone please tell me what I am doing wrong. I'm trying to send a string to an oracle and save it's output. My program just hangs when I get to this block of code. try { … |
| | HEllo. If I do this.. <div>value | number</div> <?php $arr = array(10, 7, 2, 4); $i = 0; foreach ($arr as $value) { $i++; echo "<p>" . $value . " | " . $i; } ?> ill get something like number | value 1 | 10 2 | 7 3 … |
| | Please I'm new to python and I'm trying to understand a line of code. Can someone please explain to me the implications of the addition of the for loop inside brackets with the random integer generator. Thank you for i in range( 0, 50 ) : ran_values = [ random.randint( … |
| | Hello, Im new to VB and therefore i require some guidance in this tricky situation that im stuck in. Basically, what my program does is calculate the mach number of an aircraft when the speed of sound and value of temperature are added into the text box. The problem arises …  |
| | Here is the c code:- #include<stdio.h> #include<stdlib.h> #include<string.h> int main(int argc,char *argv[]){ if(argc==1){ //default printf("first version\n"); int i,j,k; char line[1024],*str1,*str,str2[1024],ch; FILE *in=fopen("/proc/cpuinfo","r"); i=0; while((fgets(line,1024,in))!=NULL){ // printf("%s",line); str=strtok(line, " :"); if(str!=NULL){ //point 1 if(strcmp(str,"model")==0){ printf("%d %s\n",i,str); //point 2 str=strtok(NULL, " :"); printf("%s\n",str); //printing "name" if(strcmp(str,"name")==0) //point 3 printf("CPU Model:=%s\n",strtok(NULL,":")); } else … |
| | Hello Community, I was wondering if it is possible to run a php file every week that checks if a user has activated there account after 7 days they will be deleted. Please help. Thanks in advance. |
| | Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click Dim cmd As New OleDb.OleDbCommand If Not cnn.State = ConnectionState.Open Then 'open connection if it is not yet open cnn.Open() End If cmd.Connection = cnn 'check whether add new or update If Me.txtReg.Tag & "" = "" Then … |
 | I have a website plus database with details like username, password and database name. Now I want to connect and use this database into another website. I tried to include, for example include('http://domainname.com/connect/db.php'); but unable to run query. How I can do this ? |
| | Hi, I am fairly new to VB.NET and i'm just wondering if anyone can help with a problem I am having. I am looking to pass some parameters to a vb.net application fwhen I call the app from another program (written in oracle forms). My question relates to how these … |
| | hi guys, I had installed WAMP on my win 7 workstation, the PHP file is not executed or run in IE and firefox but works fine in Google Chrome. any ideas is greatly appreciated. Thanks. |
| | Hello, and congratulations for this beautiful and meticulous forum. I have a javascript/html/css issue that I'm trying to solve for about 3 days now, with no luck. I'm using javascript to toggle the visibility of a certain table. I set the table's display property to none (via js) in order … |
| | Hi Guys i need help on my school project.Currently i want to validate some important data in a textbox as soon as they are entered by the user Here is my coding........ Private Sub Textbox1_Leave(ByVal sender As Object, ByVal e As System.EventArgs) Handles Textbox1_Leave Call ValidateTextbox(Textbox1.Text) - Set saved = … |
| | I have one CSV file containing so many attribute but i want max and min values of particular specified columns. I have write following code for finding minimum value from each specified column,but i got only minimum of last column, not all column. In dataset.csv file contains 25,185,98,65 15,-20,6,95 17,20005,63,-78 …  |
 | I have a a table with the following data: reservno || icode || location 00004 || 00021 || Bohol - Cebu 00004 || 00022 || Cebu - Manila 00004 || 00014 || Manila - Bohol I use this query to retrieve the concatenated value of location. `SELECT GROUP_CONCAT(location) from location_list … |
 | i have a combobox that binding to table , what i need is wneh i retured the data i dont want to duplicate entries for example i have combobox with item BOQ Section and the item as the following "concrete , concrete, concrete , Utilities , utilities, concrete, AirCondiotioning ,utilities, … |
 | Hello, I was wondering if somone might be able to help me. I have a txt file, it looks like this ID1|NAME1|URL1|EMAIL1|LOGO1|ADTEXT1|ADTEXT1|CATEGORY1|PUBDATE1 ID2|NAME2|URL2|EMAIL2|LOGO2|ADTEXT2|ADTEXT2|CATEGORY2|PUBDATE2 ID3|NAME3|URL3|EMAIL3|LOGO3|ADTEXT3|ADTEXT3|CATEGORY3|PUBDATE3 This is my php code // initial database stuff $host = "localhost"; $user = "root"; $pass = "root"; $db = "database"; $connection = mysql_connect($host, $user, $pass) …  |
| | i am trying to add values in two coloums of data grid view. Howeaver the result is values are concatenated instead of adding. i.e 10+25 result is 1025 and not 35. DgvLedger.Rows.Item(GRNO).Cells(6).Value = DgvLedger.Rows.Item(PRNO).Cells(6).Value + DgvLedger.Rows.Item(GRNO).Cells(3).Value howeaver multiplaying two coloums value result is correct. |
| | How i can hide or remove a column in DGV??? i use this code : DGVname.columns.remove(colindex) but the column didnt remove it jsut became the last column |
| | sorry couldn't frame a better title. So here's the problem i have a function inside functions.php function show_news(){ $id_counter = 1; $json_news = array( "id" => 0, "title" => "" ); $json_o = json_decode(file_get_contents(JSON_DATA_FOLDER.'news.json')); foreach ($json_o as $id => $news_category) { echo '<h2>'.$id.'<h2>'; foreach ($news_category as $news) { if(IsNullOrEmptyString($news->id)){$json_news['id'] = … |
| | Good day! I have started a little inheritance on my simple class that takes the addition function of two numbers on the other class but the sum is always zero even if it is not supposed to be. Here is my code so far: #include<iostream> using namespace std; class Addition … |
| | Hey everyone, I am looking to write a query that I think can be solved a nested select but I am not yet that fluent in MySQL to be able to get the query working correctly. Basically what I want to do is this; SELECT count(*) from Inquiry Inner Join …  |
 | -->>Hi,I'm having an Access database (.mdb) with Members table and column Date registered just for an Example with datatype as text. -->>Now I have an Interface that I need to use it to get all registered members within the specified range of dates by using the Datepickers (1. Is for … |
| | hi im back with the new problem and the same problem..huhuh first is the same problem which is why does the data is not being inserted to the db..below is my full code for the custhome page 'Imports WindowsApplication1.LoginForm1 Imports System.Data.OleDb Imports System.Text.RegularExpressions Public Class Custhome Private _OrderID As Int32 … |
| | I have a database table like the one mentioned below. id | lecture | subject_id | date | is_deleted ------|--------------------|------------|------------|----------- 1 | Introduction | 1 | 2012-08-10 | 0 2 | Structure | 2 | 2012-08-15 | 1 3 | Introduction | 2 | 2012-08-12 | 0 4 | Functions … |
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