Web Forms :: How To Check If A Label Exists In A Placeholder
Jun 26, 2010I was wondering how to check if a label exists in a placeholder??
View 4 RepliesI was wondering how to check if a label exists in a placeholder??
View 4 RepliesI am having a slight problem with adding text (output from a stored procedure) to a label control that is nested inside a contentplaceholder (ContentPlaceHolderProductsLeftCol). The page is also using master pages.
Below are excerts of the code - I think I would have to use teh findcontrol property however I am quite lost.
Label name is lastname and is located in ContentPlaceHolderProductsLeftCol
[Code]....
Check whether the value inside the text box is a valid url or not
View 1 RepliesI have two websites. One site contains nothing but image files. This is a sub-domain of the main website. The main website allows the user to search a database of information and displays that information. I create a grid with a link to the file. In my row_databound function, I want to check to see if that file exists on my other website. If it doesn't I remove the link, otherwise I leaves a link to that file. how to verify that the LINK actually goes to a file that exists?
View 2 RepliesI am trying to check if a file already exists before uploading a file. I have the following code but it doesn't work whether the file exists or not.
[Code]....
What is the way to :
1) Check if a file exists on an FTP site.
2) Sample the size of that ftp file (3) times to ensure the file is ready for downloading.
We have some classes doing this already but they are using WebRequestMethods.Ftp.ListDirectoryDetails and then searching there in if file exists. I am hoping there are some clean ways to do this.
what is code of "user already exists in database" using asp.net 3.5
View 1 RepliesCan we check that user entering an email id is really exists or in working???
View 1 RepliesI have a page with a simple textbox, when an OrderNo is entered in te textbox the page is populated with 2 or 3 gridviews depending if the order has items reserved or on back order.
GridView1 has data about the order, like status, payment details.
GridView2 has data about orderitems, each row displays an item from the order with stock and order quantities
GridView3 has data about backorders, each row displays an item from the order with quantity reserved and quantity on back order. As is no data for GridView3 if order is not on backorder I thought that I can enclose my code inside an if block
if GridView3 isnot nothing then
'getting some data from the cells in GridView3
endif
but the code still executes.
I have some data that I am putting on a treeview and have a checkbox on the page to decide if the user wants to order the nodes by date or type.
To do this I need to check if the code has already added a child node so when grouping by the type I don't put it in lots of times.
Lets say I have Type 1 and Type 2 and each have 3 items that would fall under these I want to achieve:
Type 1
Item 1
Item 2
Item 3
Type 2
Item 1
Item 2
Item 3
Instead of:
Type 1
Item 1
Type 1
Item 2
etc etc etc
I tried using the node.Contains function but it doesn't seem to exist (I am using c#).
I am learning a tutorial, it is about saving mp3 files in database.
Have a look below picture i can upload a mp3 file multiple time with the same name how to avoid it?
[URL] ...
protected void btnUpload_Click(object sender, EventArgs e)
{
using (BinaryReader br = new BinaryReader(FileUpload1.PostedFile.InputStream))
{
byte[] bytes = br.ReadBytes((int)FileUpload1.PostedFile.InputStream.Length);
string strConnString = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
[Code] .....
Using C#.NET and VWD 2008 Express
I'm looking for a hand with:
When inserting, i would like to check if the record exists in the table, then if it doesn't, insert it, else either redirecting to a different page, or showing a message box saying "Record already exists" ...
I have a function that loops through the control on my page to set attributes. This works fine, except that I only want the attributes to bet set on the controls on the content page, and not on the master page. Is it possible to check where the control resides? Or to only loop through controls on the content page?
View 3 RepliesIn this article u describe how to check
[URL]
But I want to Data retrive from data base in this way can u tell me using java script and query string
I tried to illustrate the problem by providing the following instructions, unfortunately the data was deleted and the example failed. It is now working. I have been working through one of Scott Mitchells ASP.NET Application Tutorials Title "Using TemplateFields in the GridView Control"
The URL is ...
The example demonstrates a temporary field being used in different ways, one of which involves dates in a Calender. If the HireDate in the example is deleted or not available the program fails. Providing the date is a valid date it works fine....
i am building a project using C# Asp.Net in which i am registering users with a user id, now my question is that how to check that the user id is already exists in the user table or not when user trying to register, i am using sql server 2000?
View 3 Repliesi have two datatable, while adding rows in second datatable, i want to first check whether the id in the second datatable matches as in the first datatable, if not only then it should be added in the second datatable, else it should display a message...
i dont have any Primary Key defined on any column, so the rows could be repeatative.
I am a beginner coder, i am building a project using C# Asp.Net in which i am registering users with a user id, now my question is that how to check that the user id is already exists in the user table or not when user trying to register, i am using sql server 2000?
View 4 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
How do, to see if an object exists? For example, I want to see if there is a DropDown on the page. I tried this:
if (object != null) {}
But it does not work.
I am very new to this and have watched a lot of the videos. While trying out VWD2010 and SQL2008 Express, I come across many things, I just don't know how to do. Here is the latest:
I have a Table
UserId - Int - AutoIncrement
FirstName - Var(10)
LastName - Var(10)
I also have an ASP web page that allow the user to enter a first name and last name. It also has a button to submit. What I would like to do is have a Select statement check to see if the name already exists, then send a comment back to the user via a label. If it doesn't exist, then I would like to Insert the info and then again inform the user via label.
SelectCommand="SELECT COUNT (UserId) FROM Users WHERE ((FirstName=@FirstName) and (LastName=@LastName))"
InsertCommand="INSERT INTO User(LastName, FirstName) VALUES (@FirstName, @LastName)"
<InsertParameters>
<asp:ControlParameter ControlID="tbFirstName" Name="FirstName"
PropertyName="Text" Type="String" />
<asp:ControlParameter ControlID="tbLastName" Name="LastName"
PropertyName="Text" Type="String" />
</InsertParameters>
<SelectParameters>
<asp:ControlParameter ControlID="tbFirstName" Name="FirstName"
PropertyName="Text" Type="String" />
<asp:ControlParameter ControlID="tbLastName" Name="LastName"
PropertyName="Text" Type="String" />
</SelectParameters>
On the code behind, I get lost. (Obviously this doesn't work, but I don't know how to go about getting a results back. Protected Sub bSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles bSubmit.Click
SqlDataSource1.Select(DataSourceSelectArguments.Empty)
(get a return)
(check return value, if <>0 then
lblResults.Text = "exists!"
else
SqlDataSource1.Insert()
lblResults.Text="added!"
end if)
End Sub
How do i check that a parameter in a url exists or is not mispelled.
for example:
say the url should be passed as:
[URL}
but accidentally gets passed as:
[URL]
how to check for the mispelling (or the exsitance) of productID, as shown in the 2nd url example?
I want to be able to check if a value exists before inserting a new record in the table. I am taking a nvchar value from a textbox and want to compare it to existing values in the table. My codebehind is:
[Code]....
It is also important to filter down by CompanyID which is held in a Profile table. So the value can be equal in records where the CompanyID does not equal the loggedin Profile.CompanyID. So a user with a CompanyID of 2 can have a value in the table for SubType as "laptop" but a user with CompanyID of 3 can still enter "laptop" if there is no match for "laptop" and companyId = 3.
I have a List of integers
List<int> LI = new List<int>();
i wants check whether a particular number exists in the list.if exists do a database updation else do a database insert
foreach (int IT in LI)
{
}
can i do this inside the foreach loop or if not possible how to achieve this?????
How to check if a file exists on different domain?
If File.Exists("http://i1.asp.net/common/header/logo.png?cdn_id=01112010_2") Then
Return String.Format("<img src={0} alt='' />", "http://i1.asp.net/common/header/logo.png?cdn_id=01112010_2"
Else
Return String.Empty 'always ends here [:(]
End If