string jSFile = ResolveUrl("~/MyProject/JavaScripts/dir/test.js");
if (!System.IO.File.Exists(jSFile))
{
...
}
This code doesn't work and I guess it's the jSFile that doesn't work well with the IO.File.Exists but I know the jSFile has a valid path because when I use few line later
Page.ClientScript.RegisterClientScriptInclude("myfile",jSFile);
it does attach the JavaScript file to the ASPX and all work fine.
Before a subscription to a newsletter and the record will be inserted, i'd like to check if the record already exist ina sql-server database. This what i've got as dusfar
adres = TxtEmail.Text
DBConn.Open()
If adres <> "" Then
Try
DBCmd = New SqlCommand("SELECT COUNT(*) FROM TBL_Subscribers WHERE email = @adres)", DBConn)
''Add
DBCmd.Parameters.Add("@Email", SqlDbType.NVarChar).Value = adres
DBCmd.ExecuteScalar()
DBAdap = New SqlDataAdapter("SELECT * FROM TBL_Subscribers ORDER BY ActivateDate", DBConn)
DBAdap.Fill(DS)
Catch exp As Exception
Response.Write(exp)
End Try
End if
I need some help to figure out how to check if a file already exist in the db. My mind is froze. I am using sqlserver 2005, vb.net and vs 2008, not that matter for this quesiton, but in case if you deem necessary. I have an fileupload control and all I am trying is to check if the uploaded file already exist in my webserver or db. I am saving the file to the file directoy but I have the file name stored in the db. So I want to check the file name in the db for duplication. If it exisist I will not save the details. How do I do this.
Dim conn As New SqlConnection(resumeDatasource.ConnectionString)
If Exists("select EmailAddress,IPAddress,fleName from Resume where fleName =" & " 'strflename'") Then
MsgBox(" file already exisist", MsgBoxStyle.OkOnly)
Exit
Else
MsgBox(" thank you for uploading your file", MsgBoxStyle.OkCancel)
End If
I just got a new desktop computer with Windows 7 Pro as the operating system. I installed Visual Studio 2008 on to this new computer and tried to open a previously existing ASP.NET 3.5 solution that displayed perfectly fine on my previous computer (this previous computer used the Windows XP operating system, IIS6, and IE7 browser). However, in Windows7/IE8, I'm receiving the following error:
Server Error in '/' Application.
Parser Error Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.
Parser Error Message: The file '/MasterPages/MainMaster.master' does not exist.
Source Error: Line 1: <%@ Page Language="C#"
AutoEventWireup="true"
CodeFile="default.aspx.cs"[code]....
when I tell you that the file '/MasterPages/MainMaster.master' file does, in fact, exist. In addition, this file's location is properly referenced in the code (as indicated in Line 1 above), and as I said, was displayed properly by the browser in my previous computer. It might also be helpful to note that I've tried to navigate to other pages in this site, and this browser displays the same message for any and all master pages located in my MasterPages folder. In summary, for some reason the browser cannot see any pages in the MasterPages folder. Can anybody tell me why I'm getting this error message when the folder and file is exactly where default.aspx says it is?
When debugging my application, I m getting an application level error in global.asax file. The Server.GetLastError() reads "File does not exist." but thats it. No more details on the filename or the location where the code is trying to find a file. I commented out the application_error method, with a hope that the exception would be thrown when the debug the application, but no errors were thrown. How do i find the source of the error, cos I want to resolve this issue by either putting the file that the application is looking for or by completely removing the code that is referencing the file.
View 7 RepliesHow do I check if an asp:FileUpload control has a file selected in JavaScript?
I've tried .HasFile and .value, both have returned undefined.
I'm a beginner i work with visual studio 2005 and ajax 1.0
i have a web page with a control input i must to check the weight of the file but in javascript WITHOUT ActiveXObject !?
when click save button,I want to save the textbox values to database table..If the record is already available then just update that value... I have the code for insert and update..but i don't know how to check the already existing record..I need ,check existing record using only auto generated id
View 2 Replieshow can i check if a value exist in my web config using this method?
public
static
bool IsDomain()
{
Uri s =
HttpContext.Current.Request.Url;
return
true;
}
webconfig:
<
add
key="DomainName"
value=http://test-domain></add>
i need to check if some parameter exist in Request.Params any one know how to check that? dont use request.params["para"] != or "" i am not try to check if value exist, i need to check if the parameter himself exist before the checking if his not null or empty.
View 2 RepliesI am in a situation that i cant solvecos i am new to VB.net. I have a page with both a Detail and Grid view. The Detalview does the inserting to display it on the grid view. My table(Using SQL Server) has 3 field Username, Month and Allocation. I want to give an allocation to a user, but if the user already has one for that month, i want it to cancel.
View 2 RepliesIs it possible of using javascript to check data in SQL server?User inputs a order ID into a text box, I need to code to see if ID is in SQLserver before submit.
View 6 RepliesIn asp.net page, How can i call the javascript methods for form processing-submitting if the user browser supports javascript and use code behind events if the browser does not support javascript.I have the javascript code to send the form data to an ajax server page using jquery. Don't know how to invoke the needed one based on the browsers javascript availability
View 1 RepliesI'm trying to make checkboxes check if they exist in a table.
What I'm initially trying to do is to list the values is a table e.g. product types, and then if a product has those types assigned to it mark the check box as checked. e.g.
Products Table
Prod No Prod Name
1 Silver Bag
2 Black Bag
3 Red Hat
Product_Types Table
Prod_Type_No Prod_Type_Name
1 Bag
2 Leather
3 Hat
Associated_Product_Types
Prod_No Prod_Type_No
1 1
1 2
2 1
3 3
So When I select product 1 (Silver Bag) it shows 3 check boxes for the product types and prod type 1 and 2 are checked as they exist in the Associated_Product_Types
My problem is I cant figure out how to mark them as checked based on the values in that table.
System.ArgumentOutOfRangeException: 'DropDownList' has a SelectedValue which is invalid because it does not exist in the list of items.this question has been for a long time ago but seem no actual answer for it except for catching the exception.I don't want just catch error instead of check first whether the value exist in drop down list. My scenario was different from the other. my data source is bind to a datatable, all is in hard code.
View 14 RepliesFor MS Access, how to check if the particular field data exist?
View 4 RepliesI've written a singleton class that exposes the web.config properties in a nice get property kind of way.
I want a Load method to parse the data in the config and set the public properties, and I want to throw exceptions (so they are logged in the EventLog) when a configuration key is missing or can't be parsed.
I tried placing the Load() code in Application_Start of the global.asax but then remembered this will only be run once, or until the application restarts.
Where is the best place to put code that you need to run 'everytime' your site is started/run by the user? I basically want the website to stop functioning if certain config properties cannot be loaded.
I have detailed view and a grid view, the DetailedView does the inserting into the Grid view. On my table( Ussing SQL Server), i have a username and year and allocation. What do i do so that when an allocation is given to a user for a year that already exit, it refuses.
View 9 RepliesI am not using any database for data source.I can enter the some value in text box and the entered value is automatically added in the gridview.How can i validate not adding same item numbers in gridview.And i also calculated grand total for amount column.If i remove any records means how to recalculate current total.Any one can tell solution for this issue.I am waiting for reply ASAP.
View 2 RepliesHow to check username is exist in database or not without postback the page...
View 1 RepliesI am developing a web application for online bidding wher I want the BID button to disable itself, on all clients, whenever someone places a bid. What I need is some javascript to ping the site to check if a bid has been placed on the server, if so, then disable the button. I was suggested to use jQuery for this, use .ajax to query the server for the check. Then use a setTimeout javascript function to keep checking.I am not javascript expert at all so any tips would be greatly appreciated. At lease where to start. Also, will I need to record every single bid in database to achieve above?
View 10 RepliesI'd like to use a simple switch to display one image or another but I need a way to find out if the image exists.
If FILEEXISTS("pathtojpg") Then
'Display jpg
Else
'Display "no_image_yet.jpg"
End If
I have .Net web application which connects to Oracle 10g database. I want to check for space availibility before creating Indexes. Also if space is not sufficient then I would like to send an Email message to admin. How to do that from .Net web application?
View 2 RepliesI have asp.net form having 4 check boxes. not check box list. these 4 check boxes having the ValidationGroup property with same name say "chkValied". I have added Custom Validator there. now want to check at least on check box should be check out of these.
View 3 RepliesI have developed an asp.net application ... I have a textbox where user will enter is name ... I need to check if the name is already exist in the database table column when ever user enter their name with out post back . If user exist mean it should show a msg user already exist .....
View 6 Replies