Web Forms :: Populating DDL Dynamically From GetFiles?
Jan 21, 2010
I am populating a data bound control DropDownList with file names from a local folder that resides within a ListView control.
I am able to populate as expected, in testing list is generated - all good in that regard.
However once I set to databind by adding SelectedValue='<%# Bind("ImageFile") %>'the following error occurs
ERROR:Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.
This is the aspx file .. no codebehind:
#CODE SNIP #
[Code]....
View 1 Replies
Similar Messages:
Feb 27, 2011
I'm currently building my website and have hit a brick wall. I've not begun coding anything fro this yet as I am unable to get my head around it and not sure where to start.
I've got a database table with a list of town/ county names ( columns are id, town, county).
What I'd like to do is have a template page with set places for town/ county names and then when a particular area is searched for in google/ bing etc my template page with the relevant town/ county name is shown.
I know that's a bit vague so if you have any questions, let me know. One thing I don't want to do is manually create a page for each individual town/ county!
View 3 Replies
Oct 21, 2010
I want to populate my treeview with the values from database. How can i do it.
View 2 Replies
May 10, 2010
I have a writing a web page that will use several different types of control. The control types will depend on the data being read from a SQL database. The following is my code that decides what control to add to the page:
Select myReader.GetString(1)
Case "DatePicker"
Dim bdpAnswer As BasicFrame.WebControls.BasicDatePicker = New BasicFrame.WebControls.BasicDatePicker()
bdpAnswer.DateFormat = "dd/MM/yyyy"
divAnswerContainer.Controls.Add(bdpAnswer)
Answers.Controls.Add(divAnswerContainer)
Case "DropDownList"
Dim ddlAnswer As DropDownList = New DropDownList()
divAnswerContainer.Controls.Add(ddlAnswer)
Answers.Controls.Add(divAnswerContainer)
Case "RadioButton"
Dim rbAnswer As RadioButton = New RadioButton()
divAnswerContainer.Controls.Add(rbAnswer)
Answers.Controls.Add(divAnswerContainer)
Case "TextBox"
Dim tbAnswer As TextBox = New TextBox()
divAnswerContainer.Controls.Add(tbAnswer)
Answers.Controls.Add(divAnswerContainer)
End Select
View 4 Replies
Jul 14, 2010
I have a Grid view which is being populated from a database. Now I want to add a button that has its own html with some Hidden fields. I have introduced an Template Field and put the html in that field which works fine. But now I want to send the values in hidden field dynamically. i.e. the Id and value comming form the database.
View 3 Replies
Sep 24, 2010
i have 2 tables Desgn & EmpForm
Desgn table is lik this
CREATE TABLE [dbo].[Desgn](
[DesignationCode] [int] IDENTITY(1,1) NOT NULL,
[DesignationName] [varchar](50) NOT NULL,
CONSTRAINT [PK_Desgn] PRIMARY KEY CLUSTERED
[Code]....
and i have called the Populate1() method in the page load event., but i m not getting the dropDown populated why ?
View 1 Replies
Feb 5, 2011
(The following is a complete re-edit of the original post which was rambling, confusing etc...)
I have a form with a dynamically generated checklist:
<asp:CheckBoxList ID="cblGames" runat="server" DataSourceID="sqlGames" DataTextField="Game" DataValueField="Id" </asp:CheckBoxList>
<asp:SqlDataSource ID="sqlGames" runat="server" ConnectionString="<%$ ConnectionStrings:Games %>"
SelectCommand="SELECT [Id], [Game], [ShowWaitingList] FROM [Aanbod] WHERE ([ShowWaitingList] = @ShowWaitingList)">
<SelectParameters><asp:Parameter DefaultValue="true" Name="ShowWaitingList" Type="Boolean" /></SelectParameters>
</asp:SqlDataSource>
The following code-behind is supposed to check those boxes that correspond to values stored in a database. It fails and I don't know why.
[Code]....
View 3 Replies
Mar 5, 2010
I have a dropdownlist in EditItemTemplate and InsertItemTemplate which I want it to populate at the runtime while Inserting an item or Editing an item.
I am facing an issue regarding populating a dropdownlist dynamically while in Edit and Insert mode. There are 0 Records in my table and it shows "Empty Data message" in my Listview control. Even the ItemDataBound event does not fire. So I am not able to find the dropdownlist in that listview.
This is my Aspx code which shows only InsertItemTemplate and EditItemTemplate.
[Code]....
View 7 Replies
Sep 6, 2010
I need to create a TemplateField column dynamically , which will contain dropdowlist controls. I've been using this
example to create my first dynamic columns and for the last column, the one that contains dropdowlist controls, I've written this class:
[Code]....
But what I don't know is, where should I populate the dropdownlist control?
View 3 Replies
Feb 15, 2011
Just want to know if it is possible to Dynamically Populating a DetailsView with OleDb Data Adapter ? It has to be done on the Page_load because it has to display a users details that i must be able to edit!
View 4 Replies
Jul 17, 2010
I have a gridview that is populating from a SQL DB and working fine. However, based upon certain data I find in fields in the SQL table, I want to place a 'n' or a 'y' in extra columns in the gridview that I am assuming need to be templatefields. My thought was I could maybe add 8 template columns and then I could put a 'y' in the appropriate column based upon the data I find the table. For the life of me, I cannot figure out how to do this. I want to do this at rowdatabound time ( i think) but I just cannot find out how to, in my code, put that 'y' in the columns. Is this the right way to do this or do I need to do it another way? How do I get that 'y' in the proper column?
View 3 Replies
Aug 19, 2010
How do you filter on more than one extension?
I've tried:
FileInfo[] Files = dinfo.GetFiles("*.jpg;*.tiff;*.bmp");
FileInfo[] Files = dinfo.GetFiles("*.jpg,*.tiff,*.bmp");
View 7 Replies
Jul 9, 2010
VWD 2008 Express. Visual Basic.
I am using the Directory.GetFiles method as follows:
[Code]....
As expected, it returns files with the ".pdf" extension. I would like to be able to specify more than one extension (like "*.doc*" and "*.txt*", etc.). How can I use GetFiles to return files with more than one desired extension, without returning all files?
View 2 Replies
Sep 22, 2010
the maximum number of files in a folder, I noticed that DirectoryInfo.GetFiles().Length is returning a System.In32, but the Maximum value of a Int32 is 2.147.483.647 (Int32.MaxValue) while on NTFS (an many other filesystems) the maximum number of files can go far beyond that.
on NTFS it is 4.294.967.295 single files in one folder (probably an Uint32)
Which leads me to the interesting question:
Is it possible to get the number of files in a folder on NTFS with the .NET framework, when the number of files exceeds the Int32.MaxValue, in an elegant and performing manner?
View 1 Replies
Jan 28, 2011
Is there a way to get a file count in a folder, but I want to exclude files with extension jpg?
Directory.GetFiles("c:\Temp\").Count();
View 9 Replies
Jan 19, 2010
I am getting a problem while working with the Dropdownlist in VS2008. I am trying to populate the DDL using c# codding instead of creating DataSource in GUI. The DDL is getting populated as expected, but then I've added a label that will show the current selected item; for this I've written a code in DropDownList1_SelectedIndexChanged() :
Label1.Text = DropDownList1.SelectedValue.ToString();
I hae also enable AutoPostback for the DDL.
I have placed the PopulateDDL() method inside of the Page_Load();
But whenever I select a item, it's always giving only the first item's name as the Lebel.Text.
But when I use GUI and ceate a SqlDataSource and attach that to the DDL all works fine.
What to do??
View 8 Replies
Jan 23, 2010
custom self populating listbox
[Code]....
View 1 Replies
Sep 18, 2010
I'm really struggling with this tonight (this being exactly what it says on the tin, (or the subject!)).
Code I'm working with right now is:
[Code]....
View 3 Replies
Feb 21, 2010
I have just built a contact form for a website and it works fine but now I would like the "Subject" textbox to be filled if the user has been redirected to the contact.aspx page from another link.
For example if the user just clicks on the contact us link then the form will be blank but I have some items on the website where there is a link that says "Enquire..." that redirects to the contact.aspx page but I would like the subject textbox to be filled in with the item that it was redirected from?
View 5 Replies
Nov 1, 2010
I am just trying to figure out a way to populate a textbox based on the results of two ddls. I have one table that stores the whole data...So an example would be
DDL1 - State
DDL2- City
Textbox(Comments) - "Sometimes the comments would already be on the table...so i will like to populate the ones already in there based on the two ddl's
View 10 Replies
Aug 18, 2010
I want to write an independant class that can fill the fields in an HTML using asp:textbox. I have a class that can pull information from username and send it back to the webform. I would really like to use another, or possibly the same class, to take that data and send it to asp:textbox.text to populate the fields.
My issue is I just can't seem to find anything in my books, or online, that would help me let the class know the form is there, and that it has those fields inside the html code.
Are they objects that I could potentially pass into a new class constructor that I could populate that way?
After accomplishing this my next step would be to use this to create a class to send an email with some of the fields being passed from the form to help fill in the email.
View 1 Replies
May 6, 2010
am using asp .net 3.5 web forms with VB.I have a masterpage that is populating a treeview from a sql db. When a user clicks on the name in the tree it passes the employee identifier (employee number) to a label on the master page i have hidden. FROM the CONTENT page i am reading the label on the master page and updating the label on the content page to match the label on the master page so i can use the emp number to display info. At least that what i want. However, the content page is not posting back when the label updates of course and its one clikc behind becuase there is no post back. Is there a way to make the page postback when a label changes or a textbox for that matter.Here is how i am updating the label control On the mastepage :
Public Property EmpCode() As [String]
Get
Return Label360.Text
[code]...
View 5 Replies
Oct 22, 2010
In my attempt to handle referrals, I thought it would be nice to pre-populate the username/email since I know it from the referral record. I use email as username.It appears to work, i.e. the email address is already in the textbox field, however, it always fails with Invalid EmaiIf I erase it and type the same email, it works.In page load I do the following:
[Code]....
View 2 Replies
Oct 19, 2010
[code]....
i have the above code but the check listbox in not getting any data from datbase.
View 16 Replies
Jun 13, 2010
Trying to populating dropdownlist in LoginView from mysql db but am getting Object reference not set to an instance of an object error.
Protected Sub Page_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreRender
View 3 Replies
