On Edit Click, the DropDownList in the GridView brings the previously selected value.On Update Click, the error is: "System.FormatException: Input string was not in a correct format."
ddlRegionNavn.DataTextField = "RegionNavn"; ddlRegionNavn.DataValueField = "RegionID"; // from RegionNavn to RegionID
On Edit Click, the DropDownList values in the GridView is not firing and the following error shows.Object reference not set to an instance of an object. How to implement the code when having a value of type Int ?
In manager.aspx page I have gridview that bind product information from database in this gridview I define linkbutton EDIT that when users click on it they go to Edit.aspx page and in this page users can see their product information and Edit them
In Edit.aspx page I use some textbox and dropdownlist and bind them from database
int data1 = Convert.ToInt32(Request.QueryString["Id"].ToString()); SqlCommand _cmd = new SqlCommand("viewProduct", _cn); _cmd.CommandType = CommandType.StoredProcedure; _cmd.Parameters.AddWithValue("@id", data1); _cn.Open(); SqlDataReader _dr = _cmd.ExecuteReader();
[Code] ....
When I click on EDIt linkbutton from gridview it go to Edit.aspx page and bind all data from database and ofcourse show data in Dropdownlist untill now every thing is ok
but when I change some Item in this page i.e Name of product when I changed and clicked on button to update table in database it update data in database but below error happen too
Server Error in '/behtop website' Application.
Object reference not set to an instance of an object. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
Line 79: Line 80: Line 81: DDL1.Items.FindByText(_dr["classification"].ToString()).Selected = true; Line 82: DDL2.Items.FindByText(_dr["subset"].ToString()).Selected = true; Line 83:
And when I back to manager.aspx and again click on Edit linkbutton to Edit that product it didn't load Edit.asp page and above error happen again...
This error happen just when I want edit product information in other time if I don't edit any thing edit.aspx page load successfully...
I have a dropdownlist attached to a cell when edit is selected. I am using the following code to populate the drop down list with the value that is on the row.
dlBU.Items.FindByValue((e.Row.FindControl("lblBU") as Label).Text).Selected = true;
This works famously when I have a value in the cell. It fails when the cell has not yet been populated. Is there an if then clause that if the value of e.Row.findcontrol("lblBU") is null no default value?
Server Error in '/behtop website' Application. Object reference not set to an instance of an object. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.Source Error:
Line 43: CKEditorControl1.Text = _dr["Description"].ToString(); Line 44: //DDL1.Items.FindByValue(_dr["classification"].ToString()).Selected = true; Line 45: DDL2.Items.FindByValue(_dr["subset"].ToString()).Selected = true; Line 46:
I have a simple ASP.NET page that uses the VLC media player to play a video in IE. I also have four buttons to control the playback:
Play, Pause, Stop, and Mute
The four buttons call JavaScript functions that access the ActiveX control. When I click on any of the buttons, I get the following error in the JavaScript function:
"Microsoft JScript runtime error: 'vlc' is undefined".
However, if move the object tag for the vlc player outside the form tag, then the JavaScript works correctly, and I can control the video playback.
My question is why must the object tag be outside the form tag for this code to work correctly?
I have a search page which generates a GridView of results based on the search terms entered by the user. One of the columns in GridView is called a DOI (Document Object Itentifier). This DOI is used to find academic papers through [URL] when a user enters a DOI string. What I would like to do is redirect the user to the relevant webpage when they have selected the DOI in the GridView, however, the url for this page is always different. In the page, I have formatted the form tag like so: [URL] and in my GridView, I have formatted the row that I wish to have hyperlinked like so:
Then, in my C# codebehind, I have the following event which aims to redirect the user to the required page, based on the tag they have selected:
switch (e.CommandName) { case "d": searchResult.Attributes.Add("onchange", "window.open [URL] break; }
I don't think this code above makes any difference though as the form tag is already specifying the redirected url, nor do I think this task can be done with a html <table> object, as it only accepts static data, rather than a result set generated from a database, which is what I'm doing. I have also looked at the following post as a guide to this type of problem but, taking account of what it said didn't allow me to solve this problem completely. GridView with DDL and selected value
Idealy i would like to get a web-page that looks like the popup-windows that you get in Visual Studio when you click an object while debugging. So if the object contains any arrays, i'd also like to see what's in them, and for all those objects inside i would also like to be able to go deeper into those objects.
The reason i'm asking this, is that I can't debug my code locally (because it uses a web-service that will only run on the production), and I can't install Visual Studio on the production server, So i need to be able to actually debug on the production server. I can write my code locally though, and upload it to the production.
I'm creating a custom module and I need to be able to read the html output that's written to the HttpResponse object. Can anyone provide direction on this?
I need to add some attributes [URL] to the tag in an ASP.NET Page object. Note: I cannot do this in a declarative manner and have to use the server side object model to do it.
To add some additional information:
I need to do this within the ASP.NET Page rendering life cycle.
I need to add the attribute to the root element in the page.
I am looking at ASP.NET MVC2 and trying to post a complex object using the new EditorFor syntax.I have a FraudDto object that has a FraudCategory child object and I want to set this object from the values that are posted from the form.Posting a simple object is not a problem but I am struggling with how to handle complex objects with child objects.I have the following parent FraudDto object whcih I am binding to on the form:
public class FraudDto { public FraudCategoryDto FraudCategory { get; set; }
We are facing many challenges in using HTML dropdownlist in MVC web role. We want to get the value of the item selected by user from dropdown and based on that we want to populatee value of another text box. However whenever we tray to do so we always getthe value null b'coz ViewData returns null. In case any one has tried this kind of scenario, then plesae share your complete code - HTML declaration as well as the corresponding Action Result?
"JQueryPage.aspx" is just a page that contain DIV called 'resultsDIV' that contain the data that i want to return the above code return data variable that contain "JQueryPage.aspx" html and i want to get DIV content from it .
i have 2 questions:
1- how can i extract DIV content from data object 2- is this way is th best to get that data ?
I am creating a web application that allows a user to download a csv file of a gridview. However, after looking at tutorials online such as http://www.aspsnippets.com/Articles/Export-GridView-To-Word-Excel-PDF-CSV-Formats-in-ASP.Net.aspxand such, I successfully got the table I wanted but there are HTML content appended to the table as well.There was also a similar problem being brought up on the forum,http://forums.asp.net/p/1528174/3692826.aspx. The solutions didn't help me much though. However, I am not really sure how Handlers can benefit this. Furthermore, I don't want the user to be navigated to a blank page just to download the csv file. I tried to debug and insert removal code to remove the html code before the response object is being wrote out but seems even at the end of the writing method, the response object seems to be holding just the table content only.
I've got a Dictionary<string, string> object I'm creating:-
[Code]....
and I wanted to bind this to a dropdownlist. I know this is possible in code-behind, but is it possible to do this directly on the asp: control, something like
This has to be a simple thing, but for whatever reason, I'm just not finding it.I want to use the HTML Helper function to create a DropDownList based on a List<string> (and actually have it bind to the data field on the model). The simplest example, I suppose, would be:
<%: Html.DropDownList("Material", new SelectList(new[][code]....
This creates the items in the drop-down, but of course, there's nothing in this line that would bind it to my model (model.Material). I've done drop-downs with collections of models, where you can bind the Data and Display attributes to properties of the class, but I don't have a class here, just a List.
1: I have a .html file that has some markup with some placeholder tags.
[code]...
4: PersonInfo.aspx is literally empty since I am injecting html from code-behind.
When the PersonInfo.aspx is called the html-template markup with appropriate values in the placeholder will be displayed. Also there are chances I would like to send the final markup in an html email (though that is not part of the question as I know how to email).
Is this the best way to fill values in my html-template or is the any other better alternative?
Note: This is a very simple sample example. My class is very complex involving objects as properties and also my html template have 40-50 placeholders.
So code in my step 3 will need 40-50 Replace statements.
