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Check For Valid Path

I am using a registry entry make the save path for a file "sticky" between program executions. However, when the user uses a removable drive and the registry gets set to that path, the app will crash when it tries to open the file at that path. (i.e., the user saves to a USB drive at f: emp, then pulls the drive out. Next time the program is run it tries to save to path f: emp, which doesn't exist, and the program blows up).I guess this could be fixed with error handling, but is there an easy way to programatically check if the path is valid BEFORE trying to open the file? Thanks!

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Re-Populate A DropDown When CheckBox Is Checked?
forums.asp.net
I have a Dropdown that is bound to a sql server on PageLoad with the following code, by a session object parameter named Territory. OnSelectedIndexChanged I call a method, "AccountLookUp" that populates other controls such as Customer Address, Phone, etc. My problem is, how can I re-populate that same dropdown when a checkbox is checked, but this time by a new parameter name ALLCustomers. For instance, when the page gets loaded the first time, the dropdown displays 25 customers, when the checkbox is checked to show all customers, I want to display all 300+ customers on the dropdown. <asp:DropDownList ID="ddAcct" runat="server" AutoPostBack="True" DataSourceID="SqlDataSource1" DataTextField="CustNum " DataValueField="CustNum" Height="20px" OnSelectedIndexChanged="AccountLookUp" TabIndex="1" Width="360px" EnableViewState="true"> [code]...

C# - Setup An If Checkbox Checked Statement?
stackoverflow.com
I have multiple dynamic checkboxes. I would like to find out what checkbox was checked in the controller. How do I do that? This is what I have. HTML foreach (var items in collection) { <tr><td> <input id = "checkbox<%= items.id%>" name ="Checkbox<%= items.id%>" /> [Code]....

Jquery - Insert Checkbox Checked Value To Textbox?
stackoverflow.com
I have a 45 checkboxes in webform with values 1 to 45 i want ...to insert checkbox checked value to textbox in comma seperated string as in ascending order as 1,2,3,4,5 ...if checkbox1, checkbox2, checkbox3, checkbox4 and checkbox5 is checked...if these checkboxes will be unchecked then the inserted value in textbox will be removed 1 by one respectively. .. hwo to do this using vb.net or jquery or javascript ..

Authentication Remember Me CheckBox Not Staying Checked?
stackoverflow.com
It pulls through the Username correctly from the cookie, however the CheckBox for Remember Me does not become checked when I view the page, even though the code for setting it on the Page_Load is being executed. LoggedIn event for setting the cookies protected void lLogin_LoggedIn(object sender, EventArgs e) { // If Remember me then set an appropriate cookie if (lLogin.RememberMeSet) [code]...

How To Insert Checkbox Checked Value To Textbox Without Autopostback
stackoverflow.com
I have unlimited asp.net checkboxes to my webpage .How to insert checkbox checked value to textbox without autopostback. I i check checkbox1 and checkbox2 then in textbox it appear as 1,2 ...and after when i uncheck checkbox1 then in textbox the value would be 2. and if i uncheck checkbox1 and checkbox2 then value in textbox is blank

JQuery :: Call JS On DataGrid Checkbox Checked?
forums.asp.net
I have a BING MAP in web app. which is of JavaScript or Jquery. And also I have a DataGrid in same page. Data Grid is populated with Address ROWS. A check box is also there as ItemTemplate for DataGrid. Now after dataGrid binded with data source, and when user clicks on check box, that particular address should show on BING MAP. My question is,  How to invoke a JavaScript function when user checks checkbox in data grid. Which data Grid events suits my scenario? Also can I do this on client side without going to server side and call JS function?

Web Forms :: HOw To Clear All Checked Value Of The Checkbox Under Treeview
forums.asp.net
is it possible to clear all checked value of the checkbox under Treeview ?

Web Forms :: Checked All Children If Parent Is Checked Treeview?
forums.asp.net
how to checked all children if parent where checked in tree view form i had reseach for some coding but it had a error which is "Type 'MSComctlLib.Node' is not defined." do i need to add any reference of it? [Code]....

Check A Checkbox With The Space Bar?
www.sitepoint.com
at present the checkbox i have gets checked either by mouseclick or by tab button. instead of tab button i want the checkbox t obe checked by spacebar during runtime.

Databases :: How To Check Space On Oracle Database Server
forums.asp.net
I have to automate one database process in .Net web applicaiton which uses Oracle 11g Database as Backend. I need to know two things: (1) How to check space on Oracle database server? I need space on server and not in the Database itself. My process creates few tables so I want to make sure that we have sufficient space before the process starts. (2) Also I need to create script to backup Indexes and Triggers on the table so that I can recreate them after data transfer process is completed. Any idea how to create script form c# code?

Checking If Dll Is Installed
stackoverflow.com
I have a asp.net web app that needs vfpoledb dll installed on the server to work. I wanted to check to see if this dll is installed and if it isn't display a message and link to install it. I have no idea how to go about this. Can someone give me an example of how to do this check in code for an asp.net C# app?

Checking For Null Values
forums.asp.net
protected void rptNavigation_ItemDataBound(object sender, System.Web.UI.WebControls.RepeaterItemEventArgs e){ if (!((e.Item.ItemType == ListItemType.AlternatingItem) || (e.Item.ItemType == ListItemType.Item))) {return; }string Name = string.Empty; if (IsDBNull(e.Item.DataItem["FullName"])) { Name = String.Empty;} else {Name = (string)(e.Item.DataItem["FullName"]);} Literal ltlLiteral = (Literal)(e.Item.FindControl("ltlLiteral")); ltlLiteral.Text = Name.ToString(); I get error for IsDbNull - Error    1    The name 'IsDBNull' does not exist in the current context. What's the best way to check for null values returned from db? also I get errors on both lines where (e.Item.FindControl(ltlLiteral")); is present ERror: Cannot apply indexing with [] to an expression of type 'object'

Checking For Null List?
forums.asp.net
I am making a class with an optional paramiter which will be a List<> paramiter. I want to set it's default value to null so I have used List<Params> Param = null. What am not 100% sure is checking the list to see if it was set to null or not. Is using: if (Param == null)

Error While Checking Url - Key Can't Be Null
www.sitepoint.com
.NET noob here (as in I know next to nothing, I'm trying to pick up some of the scraps left by my developer). Ok, I am getting this error on a number of my .aspx pages: Error while checking url '/': Key cannot be null. Parameter name: key Interestingly, I get this on my homepage on which the only .NET code is in the form of two includes, e.g: <% Response.WriteFile("/includes/footer.aspx") %> These includes in themselves only contain HTML, so I assume the issue can only be related to these or a configuration issue?

Checking Site For JS Errors?
www.vbforums.com
I have an application where I use the AJAX Tabpanel. It works 99 times out of 100. But sometimes a JavaScript error appears on the site saying that the Tabpanel cannot be found. What I want is to check the site for JS errors and if JS errors appear then I will reload the site. In Pseudo-code: Code: If noJavaScriptErrorsAppear then Ok Else reloadTheSite Endif Is that possible to implement in the serverside code e.g. in the page events?

Checking Dimensions Of An Image?
forums.asp.net
using vb.net 2005.I am reading an image using a FileStream object and wondering this: is there a way that I can check what the dimensions are of a file before I read it using the FileStream object?  the code I have now is like this:  [Code]....

Checking Of Table Is Empty?
forums.asp.net
Im want to check of a table is empty and then just return a yes or a no. What iv done so far is: [code]....

Checking Condition In Gridview?
forums.asp.net
i want do check the user is activated are not . if the person is activated i want to display the some image and if the person is not activated i want to show another image in item templet. i want the code in aspx page. i am getting the details in public function only in ack .cs page .  i wrote like this  <asp:TemplateColumn HeaderText="EDIT"> <ItemTemplate> <%if (DataBinder.Eval(Container.DataItem,"txt_status") == 0) {%> <asp:HyperLink ImageUrl="images/icon_edit.gif" ID="Hyperlink2" Runat="server" NavigateUrl='<%# "editservice.aspx?id="+DataBinder.Eval(Container.DataItem,"int_clientid")+""%>'> </asp:HyperLink> <% else %> <asp:HyperLink ImageUrl="images/icon_edit.gif" ID="Hyperlink2" Runat="server" NavigateUrl='<%# "editservice.aspx?id="+DataBinder.Eval(Container.DataItem,"int_clientid")+""%>'> </asp:HyperLink> <% } %> </ItemTemplate> <HeaderStyle Width="15%" /> </asp:TemplateColumn>

Checking An Open Web Page?
forums.asp.net
I want to write an ASP page which will accept a set of parameters (lets call it Page A), and will then launch other ASP pages, feeding parameters to those pages as required (call these Page B and Page C).What I want to do though is make sure that Page A will only launch Page B if Page B isn't already open.  I also want to perform the same check before Page A launches Page C.Is there an easy way to do this using ASP?

Checking If Value Exists In Array?
forums.asp.net
What I want to do is as follows :I am going to be a String from a database which will have some comma seperated values i.e Bank,Bank +2,School What I want to do after I read this value is to then check a certain string to see if this exists within this string type array.I.e does "Bank" exist in "Bank,Bank +2,School"

Web Forms :: Checking A DropDownList For A Value?
forums.asp.net
I am creating a DropDownList at runtime.How do I check if a particular value exists (code snippets in VB please)? 

Checking List If Exist In Web?
forums.asp.net
I would like to ask if does anyone know how to check if a list is already existing in the web site? The logic is like this, if list exists, do nothing, else create a new one. One more thing, I'd like to get the value of the SPlistitem's column/field. ex. I have an item in a list which have modifiedBy and CreatedBy field. I want to get their value. Can somebody show me how to achieve this?

Checking If Session Has Timed Out?
stackoverflow.com
This is my base class for all pages except EndSession.aspx override protected void OnInit(EventArgs e) { base.OnInit(e); if (Context.Session != null) { //check the IsNewSession value, this will tell us if the session has been reset. [Code].... But on EndSession I try to navigate back to, say default.aspx, and then this code above just redirects be back to EndSession.aspx. So for better clarification: Step 1: Go to mypage.aspx Step 2: Wait for timeout Step 3: try to navigate away Step 4: get redirected to EndSession.aspx Step 5: try to navigate away Step 6: GoTo set 4 Setp 6 should be actually being able to navigate away...

Checking To See If A Socket Is Alive?
forums.asp.net
I'm attempting to verify if a socket is open (basically, if the process is running, the socket is most likely open).  System.Net.Sockets.TcpClient does not support setting a timeout, so if the socket isn't open, you end up waiting ~60 seconds for the page to load.  I'm trying to get around this by using a socket nstead:  [Code].... My problem is that asyncResult is ALWAYS true, so this code doesn't work.  Is there any way to add a timeout to System.Net.Socket.TcpClient or get the above code to return false or true depending on if it can connect or not?

Checking Username Availability?
forums.asp.net
I need to check the username availability like twitter.com (https://twitter.com/signup) in asp.net/c# 3.5 with AJAX concept. How to do this?

C# - Checking Whether Data Is Null?
stackoverflow.com
Is it best practice to check whether a value is null coming from a database even though there are constraints on the column which disallow nulls.

Checking If A Value Exists In The Database?
forums.asp.net
i have the following which should be checking if a value exists in the database, however it is not working in the correct fashion, this is what i have in my data access layer; [Code].... Then in my presentation layer;  [Code]....

VS 2008 Spell Checking In VS2008?
www.vbforums.com
I am using the C1 enterprise control set that has a web editor with spell checking. But I have to click a button to check the spelling. Does anyone use an editor that checks the spelling as you type and highlights the words rather than using a dialog box at the end? I think some controls use a javascript and calls the spell checker at intervals so the words are highlighted while you type.Does anyone know if a control like this that is not expensive?

VS 2005 No Response On Radiobutton Checking?
www.vbforums.com
I have two radioButtons Yes No On Button click , i m doing some actions. On Form load. No radio button is checked,When i click on button,on browser 2 is checked is written.But if there is no radio button checked,then why output is written 2 is checked. Code: [code]....

VS 2005 Checking If Email Id Is Valid Or Not?
www.vbforums.com
I have a sign up page in my website where the user needs to enter his email id.Now i want to check whether the email id entered by the user actually exists or not...

Check If Custom Exception Handler Has Been Set?
stackoverflow.com
I want to call set_exception_handler() only if no other exception handler has been register before, hence the default handler is in use. I need that, because I want to log exceptions to file in production code, but I don't want to register exception handler when PHPUnit is running my code, because it need to catch all errors.

Check If Server Is Up
www.phpbuilder.com
In basic what I need is, if my custom 500 error page is called I need to check if the server is actually down. On occasion we are seeing the site gets maxed out on the number of processes that can run simultaneously (the shared host allows a max of 25 processes). The problem is email, every time someone checks their email it starts 2 processes, but it seems some email clients like to open up several processes (I've seen up to 10 for one email account) and then if a few more people are checking email and then some are using the web app and then if we get a spurt of visitors, the site maxes out on the number of processes running and all the sites go down. So to fix this we have an email sent to 3 people when anyone lands on the custom 500 error page so we can manually terminate the email processes. The problem we are dealing with is rogue bots, we are now getting between 10 to 20 emails a day and all are just rouge bots. I can keep legitimate bots from landing on the page, or indexing it, using robots.txt but rogue and malicious bots use the robots.txt to find hidden files they can potentially exploit. So I am wanting to add, to the custom 500 page, a way to check if the server is actually down. I was thinking of just using fsockopen to send a request to my personal site (on a different server) and then having a script there that will use fsockopen to call a file from the first server. And if any request fails an email is then sent to the 3 of us. But I thought possibly php may have some function that is specifically for this purpose and I just have not found it yet. Or, if not, there may be a standardized method of doing this other than fsockopen or even cURL. So what is the correct way to go about checking if the server is no longer serving up pages to visitors?

Disabling SSL Check On OAuth Calls?
stackoverflow.com
Library to make oauth-signed requests, but I'm getting a problem with the ssl certs. I need to bypass the certificate validation (I know this is a security problem, it's for development only). [URL]... Which looks exactly what I need but when trying to run the code with this: I get this error:[Fri Dec 17 15:43:12 2010] [error] [client ::1] PHP Fatal error: Class 'OAuth' not found in /Library/WebServer/Documents/oauth/test.php on line 9.

Allowing User Check / Uncheck All Checkboxes In Form
www.codingforums.com
I am trying to allow a user to easily uncheck/check all checkboxes in a form by checking or unchecking a checkbox. The checkboxes would be in a form like so: <form action="" method="post"> <input type="checkbox" name="checked[]" value="1"> <input type="checkbox" name="checked[]" value="2"> <input type="checkbox" name="checked[]" value="3"> <input type="checkbox" name="checked[]" value="4"> </form> I use an event handler to call a function: <input type="checkbox" name="checkall" onchange="checkall('checked[]', this.checked)"> And here is the function: function checkall(box_name, current_state) { all = document.getElementsByName(box_name); action = (current_state == "checked") ? "false" : "true"; for (i = 0; i < all.length; i++) { all[i].checked=action; }} The event handler should pass the name of the checkboxes and whether the "check all" checkbox is currently checked or not to the checkall() function. Nothing happens when I check/uncheck the "check all" function.

Check Dates Against Weekdays?
bytes.com
I have a orm built with RSForms Pro in which there is a calendar. The form is about bookings for activities, some of which are not available every weekday. Is there a way of checking the date the clients chooses and display some kind of alert in case the activity he/hse is booking, does not take place in that weekday?

Include Path Fatal Errors
forums.devshed.com
I have require statements that call pages sending variables: <? require("http://www.MYDOMAIN.com/include/navbar.php?page=$page") ?> PHP Fatal error: Failed opening required 'http://www.MYDOMAIN.com/include/navbar.php?page=Services' (include_path='.;c:phpincludes') in d:inetpubftprootvertechMYDOMAIN.comincludeheader.php on line 79 I'm pretty sure it's due to the php.ini file since everything was working before that.