Search Results

Search found 55552 results on 2223 pages for 'system variable'.

Page 187/2223 | < Previous Page | 183 184 185 186 187 188 189 190 191 192 193 194  | Next Page >

  • php variable persistance

    - by Illes Peter
    I have two files: index.php /lib/user.php Index contains the form: <div class="<? echo $msgclass; ?>"> <? echo $msg; ?> </div> <form id="signin" action="/lib/user.php" method="post"> ... </form> User.php makes all the processing. It sets $msg to 'some error message' and $msgalert to 'error' in case of any error. At the end of processing it uses header() to redirect to index.php But after redirection $msg and $msgalert no longer persist and index only gets empty vars. How can i fix this?

    Read the article

  • C++ header files and variable scope

    - by MrDatabase
    I want to organize my c++ variables and functions in the following way: function prototypes in a header file "stuff.h", function implementation in "stuff.cpp", then say #include "stuff.h" in main.cpp (so I can call functions implemented in stuff.cpp). So far so good. Now I want to declare some variables in stuff.cpp that have global scope (so I can modify the variables in functions implemented in stuff.cpp and main.cpp). This doesn't seem to work. How can I do this?

    Read the article

  • Form variable does not refresh with ajax call

    - by ChrisOPeterson
    I'm building a simple email sending form and wanted to make it with ajax. The form submits correctly the first time but if you make any subsequent changes to the text in the form and then submit again then jquery does not pick up on the changes and posts the old data. Whats going on? <script type="text/javascript"> var $j = jQuery.noConflict(); $j(document).ready(function() { var submit_url = "mail_submit.php"; var send_email = $j("#sendemail"); send_email.click(function() { var form = $j("#post"); $j.post(submit_url, form.serialize(), function(data) { alert(data); }); }); });

    Read the article

  • how to truncate an double datatype value variable

    - by prince23
    hi, i have an class public class Score { public double marks { get; set; } } now in my code List<Level1> Obj= new List<Level1>(); Score Object= new Score(); l1.marks=94.345454; Obj.Add(Object) // now whiling adding the object to list i need to trunacte the value to 94.34 and store in the list obj. so that i need to get output has 94.34 how can i do it. thanks in advance prince

    Read the article

  • Why is this global variable not being changed???

    - by user398314
    Why does this turn up null instead of being set to the data returned from the ajax call? It must be something simple i am overlooking. var message; $(document).ready(function(){ fbFetchMessage(); alert(message); }); function fbFetchMessage(){ var url = "http://graph.facebook.com/companyname/feed?callback=?"; $.getJSON(url,function(json){ message = json.data[0].message; }); }

    Read the article

  • Store system passwords with easy and secure access

    - by CodeShining
    I'm having to handle several VPS/services and I always set passwords to be different and random. What kind of storage do you suggest to keep these passwords safe and let me access them easily? These passwords are used for services like databases, webserver user and so on that run customers' services, so it's really important to keep them in a safe place and strong. I'm actually storing them in a google drive spreadsheet file, describing user, password, role, service. Do you know of better solutions? I'd like to keep them on a remote service to make sure I don't have to make backup copies (in case my hdd would fail somehow). I do work on *nix platforms (so windows specific solutions are not a choice here).

    Read the article

  • C++ - 3 possible values in Variable?

    - by noryb009
    I need to store a 30 letter combination, but each letter can only be "0", "1" or "2". When I use sizeof(myString), it returns 32. I want to use this 30 letter combination to access a row of an array, so I'm wondering if it is possible to use a 3 value bool of some sort to store 1 of 3 values in.

    Read the article

  • Behaviour of System.Timer when Interval property changed

    - by lowlyintern
    I have a System.Timer setup to trigger an event every day at 2AM. If the process the timer starts fails then I want the timer to be reset to run every 15 minutes until the process completes succesfully. // this is how the timer is set up. // this is working correctly. double startTime = milliseconds_of_hour_to_start. Timer = new System.Timers.Timer( startTime); Here is the code to reset the timer on success or failure of the event handler. NOTE the timer is not being stopped, just the Interval property is being reset. if (ProcessSuccess) { Timer.Interval = TimeSpan.FromHours(24).TotalMilliseconds; } else { Timer.Interval = TimeSpan.FromMinutes(15).TotalMilliseconds; } My question is this, if the process fails say 4 times, then succeeds will the Timer now be running at around 3AM? i.e. after failing will the original start time of 2AM be advanced by 15 minutes?

    Read the article

  • MySQL get variable from SELECT

    - by rlb.usa
    MySQL keeps saying my syntax is incorrect. I want to do this: DELIMITER $$ DROP PROCEDURE IF EXISTS `myprocedure` $$ CREATE DEFINER=`db`@`%` PROCEDURE `myprocedure`( var_name varchar(10) ) BEGIN /* syntax errors below */ DECLARE countTemp integer; SET countTemp=(SELECT COUNT(Name) FROM mytable WHERE Name= var_name); /* more stuff */ END $$ DELIMITER ; What's the correct syntax?

    Read the article

  • Unboxing object containing a value which is known to be assignable to an integer variable

    - by Wim Coenen
    If I have an object instance and I know it is actually a boxed integer, then I can simply cast it back to int like this: object o = GetSomethingByName("foo"); int i = (int)o; However, I don't actually know that the value is an integer. I only know that it can be assigned to an integer. For example, it could be a byte, and the above code would throw InvalidCastException in that case. Instead I would have to do this: object o = GetSomethingByName("foo"); int i = (int)(byte)o; The value could also be a short, or something else which can be assigned to an int. How do I generalize my code to handle all those cases (without handling each possibility separately)?

    Read the article

  • Java - Does null variable require space in memory

    - by Yatendra Goel
    class CheckStore { private String displayText; private boolean state; private String meaningfulText; private URL url; public CheckStore(String text, boolean state) { this.displayText = text; this.state = state; } : : } As I am initializing only two variables (displayText and state) in the constructor, Will the rest two variables (meaningfulText and url which will have the value null) will require space in memory to store null value. Q1. I think they will require space. If they will, then how much memory does a null value takes in the memory (like int takes 4 bytes). Q2. How much space a string takes in memory. I guess it will depend on the length of the string. So how much space a string takes of how much length?

    Read the article

  • Double variable argument list.

    - by Lukasz Lew
    I need something like this: class Node (left : Node*, right : Node*) I understand the ambiguity of this signature. Is there a way around it better than the following? class Node (left : Array[Node, right : Array[Node]) val n = new Node (Array(n1, n2), Array(n3)) Maybe some kind of separator like this? val n = new Node (n1, n2, Sep, n3)

    Read the article

  • Parallelism on two duo-core processor system

    - by Qin
    I wrote a Java program that draw the Mandelbrot image. To make it interesting, I divided the for loop that calculates the color of each pixel into 2 halves; each half will be executed as a thread thus parallelizing the task. On a two core one cpu system, the performance of using two thread approach vs just one main thread is nearly two fold. My question is on a two dual-core processor system, will the parallelized task be split among different processor instead of just utilize the two core on one processor? I suppose the former scenario will be slower than the latter one simply because the latency of communicating between 2 CPU over the motherboard wires. Any ideas? Thanks

    Read the article

  • system-wide hook for 64-bit operating systems

    - by strDisplayName
    Hey everybody I want to perform a system-wide hook (using SetWindowHook) on a 64bit operating system. I know that 64bit processes (= proc64) can load only 64bit dlls (= dll64) and 32bit processes (= proc32) can load only 32bit dlls (= dll32). Currently I am planning to call SetWindowHook twice, once with dll32 and once with dll64, expecting that proc64s will load dll64 and proc32s will load dll32 (while dll32 for proc64s and dll64 for proc32s will fail). Is that the correct way to do that, or is there a "more correct" way to do that? Thanks! :-)

    Read the article

  • how to return static variable PHP

    - by GOsha
    function build_path($cid) { static $fr=array(); $DB = new MySQLTable; $DB->TblName = 'shop_categories'; $where['cat_id']['='] = $cid; $res = $DB->Select('cat_id,cat_name,cat_parent', $where); if($res !== false) { $pid = mysql_fetch_array($res); if($pid['cat_parent'] !== "0") { $fr[] = $pid['cat_id']; build_path($pid['cat_parent']); } else { $fr[] = $cid; $fr = array_reverse($fr); print_r($fr); return $fr; } } } print_r(build_path(100)); Why is working print_r in function, but second print_r returns NULL?

    Read the article

  • C# - Must declare the scalar variable "@ms_id" - Error

    - by user1075106
    I'm writing an web-app that keeps track of deadlines. With this app you have to be able to update records that are being saved in an SQL DB. However I'm having some problem with my update in my aspx-file. <asp:GridView ID="gv_editMilestones" runat="server" DataSourceID="sql_ds_milestones" CellPadding="4" ForeColor="#333333" GridLines="None" Font-Size="Small" AutoGenerateColumns="False" DataKeyNames="id" Visible="false" onrowupdated="gv_editMilestones_RowUpdated" onrowupdating="gv_editMilestones_RowUpdating" onrowediting="gv_editMilestones_RowEditing"> <RowStyle BackColor="#F7F6F3" ForeColor="#333333" /> <Columns> <asp:CommandField ShowEditButton="True" /> <asp:BoundField DataField="id" HeaderText="id" SortExpression="id" ReadOnly="True" Visible="false"/> <asp:BoundField DataField="ms_id" HeaderText="ms_id" SortExpression="ms_id" ReadOnly="True"/> <asp:BoundField DataField="ms_description" HeaderText="ms_description" SortExpression="ms_description"/> <%-- <asp:BoundField DataField="ms_resp_team" HeaderText="ms_resp_team" SortExpression="ms_resp_team"/>--%> <asp:TemplateField HeaderText="ms_resp_team" SortExpression="ms_resp_team"> <ItemTemplate> <%# Eval("ms_resp_team") %> </ItemTemplate> <EditItemTemplate> <asp:DropDownList ID="DDL_ms_resp_team" runat="server" DataSourceID="sql_ds_ms_resp_team" DataTextField="team_name" DataValueField="id"> <%--SelectedValue='<%# Bind("ms_resp_team") %>'--%> </asp:DropDownList> </EditItemTemplate> </asp:TemplateField> <asp:BoundField DataField="ms_focal_point" HeaderText="ms_focal_point" SortExpression="ms_focal_point" /> <asp:BoundField DataField="ms_exp_date" HeaderText="ms_exp_date" SortExpression="ms_exp_date" DataFormatString="{0:d}"/> <asp:BoundField DataField="ms_deal" HeaderText="ms_deal" SortExpression="ms_deal" ReadOnly="True"/> <asp:CheckBoxField DataField="ms_active" HeaderText="ms_active" SortExpression="ms_active"/> </Columns> <FooterStyle BackColor="#CCCC99" /> <PagerStyle BackColor="#F7F7DE" ForeColor="Black" HorizontalAlign="Right" /> <SelectedRowStyle BackColor="#CE5D5A" Font-Bold="True" ForeColor="White" /> <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" /> <AlternatingRowStyle BackColor="White" /> <EditRowStyle BackColor="#999999" /> </asp:GridView> <asp:SqlDataSource ID="sql_ds_milestones" runat="server" ConnectionString="<%$ ConnectionStrings:testServer %>" SelectCommand="SELECT [id] ,[ms_id] ,[ms_description] ,(SELECT [team_name] FROM [NSBP].[dbo].[tbl_teams] as teams WHERE milestones.[ms_resp_team] = teams.[id]) as 'ms_resp_team' ,[ms_focal_point] ,[ms_exp_date] ,(SELECT [deal] FROM [NSBP].[dbo].[tbl_deals] as deals WHERE milestones.[ms_deal] = deals.[id]) as 'ms_deal' ,[ms_active] FROM [NSBP].[dbo].[tbl_milestones] as milestones" UpdateCommand="UPDATE [NSBP].[dbo].[tbl_milestones] SET [ms_description] = @ms_description ,[ms_focal_point] = @ms_focal_point ,[ms_active] = @ms_active WHERE [ms_id] = @ms_id"> <UpdateParameters> <asp:Parameter Name="ms_description" Type="String" /> <%-- <asp:Parameter Name="ms_resp_team" Type="String" />--%> <asp:Parameter Name="ms_focal_point" Type="String" /> <asp:Parameter Name="ms_exp_date" Type="DateTime" /> <asp:Parameter Name="ms_active" Type="Boolean" /> <%-- <asp:Parameter Name="ms_id" Type="String" />--%> </UpdateParameters> </asp:SqlDataSource> You can see my complete GridView-structure + my datasource bound to this GridView. There is nothing written in my onrowupdating-function in my code-behind file. Thx in advance

    Read the article

  • Measuring execution time of a call to system() in C++

    - by jm1234567890
    I have found some code on measuring execution time here http://www.dreamincode.net/forums/index.php?showtopic=24685 However, it does not seem to work for calls to system(). I imagine this is because the execution jumps out of the current process. clock_t begin=clock(); system(something); clock_t end=clock(); cout<<"Execution time: "<<diffclock(end,begin)<<" s."<<endl; Then double diffclock(clock_t clock1,clock_t clock2) { double diffticks=clock1-clock2; double diffms=(diffticks)/(CLOCKS_PER_SEC); return diffms; } However this always returns 0 seconds... Is there another method that will work? Also, this is in Linux. Thanks!

    Read the article

  • Using pthread condition variable with rwlock

    - by Doomsday
    Hello, I'm looking for a way to use pthread rwlock structure with conditions routines in C++. I have two questions: First: How is it possible and if we can't, why ? Second: Why current POSIX pthread have not implemented this behaviour ? To understand my purpose, I explain what will be my use: I've a producer-consumer model dealing with one shared array. The consumer will cond_wait when the array is empty, but rdlock when reading some elems. The producer will wrlock when adding(+signal) or removing elems from the array. The benefit of using rdlock instead of mutex_lock is to improve performance: when using mutex_lock, several readers would block, whereas using rdlock several readers would not block.

    Read the article

  • Linux: programatically setting a permanent environment variable

    - by Richard
    Hello All, I am writing a little install script for some software. All it does is unpack a target tar, and then i want to permanently set some environment variables - principally the location of the unpacked libs and updating $PATH. Do I need to programmatically edit the .bashrc file, adding the appropriate entries to the end for example, or is there another way? What's standard practice? Thanks

    Read the article

< Previous Page | 183 184 185 186 187 188 189 190 191 192 193 194  | Next Page >