Web Forms :: Adding A CustomValidator From The Code Behind File?
Mar 19, 2010
I have a CheckBoxList generated from the code behind file that I want to validate with a CustomValidator.However, I don't succeed in stating the C# function that it has to use, and I can't seem to bind it to the CheckBoxList control.
[Code]....
and then something like:WorkCheckboxValidator.ControlToValidate = WorkScheduleCheckboxList.ToString();
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Jul 25, 2010
I have an asp.net application. I want to add a global.asax and global.asax.cs file to my project. In the IDE when I select to create a new global.asax file, the option to create a CS code behind file is greyed out. When the global.asax file is created, no code behind is created, instead code is placed in the global.asax file and the global.asax.cs file is never created? Why is the option for a C# code behind file greyed out?
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Dec 30, 2010
i have this ValidationExpression="(d{1,}.{0,2} .{2,})|(.{2,} d{1,}.{0,2})" used in regularexpression validator. I want to use the same one in a customvalidator. But customvalidator does not have option validationexpression. how can i add this in code or in tag.
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Feb 22, 2011
The inline code
<% for (int i = 0; i < ThumbnailList.Items.Count; i++)
{ Response.Write("thumbnailViews[" + i.ToString() + "] = $find('" +
ThumbnailList.Items[i].FindControl("ThumbnailView").ClientID + "');
"); } %>
produces a bunch of compile time errors in Visual Studio 2008 - although it works fine.
But this seems to be the exact way inline code should be added, at least according to this MS help file:
[URL]
The errors are:
expected expression (at "<%")
expected ';' (at "int i")
expected ')' (at ThumbnailList.Items.Count;
expected ';' (at " i++)")
I have done a
<%@ Page Language="C#" ...
at the top of the file.
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Aug 9, 2010
I want to add some vb code within the html, or the source part of the page witjin visual studio here is my attempt but it doesnt seem to work, none of the requested parts appear.
[Code]....
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Aug 15, 2010
I'm trying to essentially add a dropdownlist control array to a from from the code-behind but I am getting an HttpException error saying that it must be placed inside a form tag with runat=server. How can I do this? This is the code I have right now for it:
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Jun 29, 2010
I binded data (from a SQL) to a Listbox on a ASP.NET webform. Trying to find a way to add a rownumber with vb-code. Does someone know how to do this?
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Mar 3, 2010
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Oct 10, 2013
I have a dropdown which i have binded code behind as:
protected void PriorityType()
{
DPriority.Items.Add(new ListItem("--Select--", "0"));
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Feb 18, 2010
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May 21, 2010
I am having issues correctly setting up reference to javascript code to a custom validator.This is my javascript code in the .aspx page.
[Code]....
And here is where I add the Client Validation to the customer validator in the code behind.
[Code]....
The validation is if there is a value present in the first text box then the second text box is required.The page throws an error when the validation should fail, but if I ignore the error the validation works correctly.Do I need to move my javascript to the code behind as well?
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Apr 13, 2010
I'm trying to add some basic HTML markup to my code-behind, just a H1 and a few breaks separating strings in the message.Body, but can't seem to get it going without errors.
[Code]....
Probably a straightforward thing, or not intended usage at all,
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Sep 21, 2010
I am generating xhtml in code that is then inserted into the page. Are there class(es) that help with adding tags etc. Then having a function that will output it to a string. (like the xml dom api) code like:
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Feb 24, 2010
I inherited an application written for VB.Net and am converting it over to ASP.Net, with VB as the back end. I have a data pull that adds values to a new instance of a class, then adds the item to a listbox. It worked great in the VB.Net version, but I get the following error in the Visual Studio Text Editor when I try to use the code:
Overload resolution failed because no accessible 'Add' can be called with these arguments:
'Public Sub Add(Item As System.Web.UI.WebControls.ListItem)':Value of type 'MyItem' cannot be converted to System.Web.UI.WebControls.ListItem'.
'Public Sub Add(Item as String)':Value of type 'MyItem' cannot be converted to String.
I have played around with the code quite a bit and have been researching online, but I'm just drawing a blank here.
I put the class("MyItem") in the "App_Code" folder in a file called "MyItem.vb". The class code is as follows:
[Code]....
The code I have for the sub that is supposed to add the items to the listbox is as follows:
[Code]....
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Mar 9, 2011
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note: i have a friend told me that in code behind like the one above have he has it working correctly but in my case i dont know whats wrong!
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Jul 20, 2010
I have a grid. I am building and populating it dynamically in C#. Below mentioned is my issue:
string s1 = "string1";
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Below is my sample code:
[Code]....
the code above is working correctly, when the user click in the buttons New or Edit , the DetailsView opens correctly, showing the DropDownlist, but when the user click in the buttons update or insert , an error occurs, the viewState cannot be loaded:
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I have two CustomValidators, both of which function in the same way (call a query and check if a particular value is available in the DB), the only difference is the query itself.
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[Code]....
How can I check in the code behind , which validator called the function "Check"??
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I have the following code the form of a datalist,
<asp:DataList ID="DataList1" runat="server" BorderColor="black" CellPadding="3" Font-Names="Verdana"
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[code]...
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I added web.sitemap file in my project.on Debug it shows an exception like this"The file
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I'm doing a multiple file upload script that add flies to a listbox and afterward uplods them to folder.
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Jan 3, 2010
is it possible to add more then one file name in app settings.??if so,how to work around with second file.?..i currently have one file listed in app setting,
<appSettings
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>//i need to add another file here with values??????
<add key="key1" value="a"></add>
<add key="key2" value="b"></add>
<add key="key3" value="c"></add>
</appSettings>
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