.Net Web Services, WebMethod List<T> Parameter Is Empty?

Nov 24, 2010

I have defined a class:

public class ProjectSitesForGrouping
{
public int ProjectID { get; set; }

[code]...

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Mar 2, 2011

The message sent to browser is as follows:

The type My.API.Class is ambiguous: it could come from assembly '[on Temporary ASP.NET Files]' or from assembly '[on bin folder]'

The problem occurs when debugging a Web App, speciically when making a request to a WebMethod of a WebService.The project compiles just right. It generates My.Website.dll on bin folder and if I publish the Web Application. It works fine.The asmx file is on the root of the application. The CodeBehind file is on App_Code and its marked to be compiled to generate My.Website.dll.The way this person exposes its problem is somehow similar but I get starting to be lost when he talks about a proxy class and shared dlls I don't use.

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I am trying to return a sum total figure from a stored procedure by using the output parameter. When I execute the stored procedure in SQL it returns 0 or a valid number like it should but when I try to use the webmethod listed below I keep getting a 0 even when I should get a valid number back.

ALTER PROCEDURE spGetCustSum
@CustomerCode CHAR(4),
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AS
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Am I missing a step or have some wrong code in this method?

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Oct 18, 2010

Recently, I tried to get my Web Service class to inherit from a custom base class that inherits from System.Web.Services.WebMethod instead of the System.Web.Services.WebMethod directly.

However, I've been getting Error 500.

Public Class Service1
Inherits BaseClass
<System.Web.Services.WebMethod()> _
Public Function GetSessionID() As String
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End Function
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public class BaseClass
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public property Property1 as string
public property Property2 as string

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C# - Webservice Remove NameSpace From WebMethod Parameter

Apr 1, 2011

I Have Create the webMethod

Service:
[WebMethod]
public void GetCommission(List <BOLibrary.Flight.DTContract>Loc)
{
}

At the client side i am Passing the parameter Client

List<BOLibrary.Flight.DTContract> BoList = new List<BOLibrary.Flight.DTContract>();
BOLibrary.Flight.DTContract dtConboj = new BOLibrary.Flight.DTContract();
dtConboj.ValidatingCarrier = "AA";
BoList.Add(dtConboj);
BOLibrary.Flight.DTContract[] pass = BoList.ToArray();
service.GetCommission(pass);

But the Problem is that the service.GetCommission(pass) accpect the argument of servicenameSpace.DTContract but in client in client i have BOLibrary.Flight.DTContract so how can i pass the parameter to the to the Service.

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Jun 16, 2010

Is there a way to retrieving parameter names and values passed to a web method from Request object? I've read somewhere that you need extra code to access the soap body. Any known workarounds to be able to see the soap body from Application_BeginRequest?

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Passing Custom Object As Parameter To A Webmethod Of Web Service?

May 11, 2010

I have a custom class declared as follows (in vb.net)

<Serializable()> _ Public
Class NumInfo Public n As String
Public f As Integer Public fc As
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[Code]....

What am I doing wrong? For the record I tried replacing char() with string to see if it was the array causing problems but that didn't help either. I'm fairly new to web services. I tried replacing the custom object parameter with a primitive parameter just to check how things worked and it rendered a page with an input field and invoke button.

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can datatable pass to web service as input parameter? i have a scenario to pass values as datatable to web service. eg as follows

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Data Controls :: Display Empty Message When Data List Is Empty When Working With Alphabet Paging

Jun 27, 2012

When I click on the Alphabets it will show the details of a player...however, when that particular letters has no details of the player..I want to show."No results can be found"..Is there anyway to do it?

protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
ViewState["CurrentAlphabet"] = "ALL";
this.GenerateAlphabets();

[code]...

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Sql Server - Using Report (Reporting Services) Parameter Values In Page

Apr 30, 2010

I have a report (Reporting Services) integrated into an ASP.NET that shows dropdownlists to select report parameter values. The dropdownlists are populated using direct database selects, though I see the report RDL files do contain the paramter values and datasets as defined in the report designer.Is it possible to obtain the report parameters "available values" in ASP.NET to populate the dropdownlists? This would avoid some code duplication.

Update.If the parameter doesn't use a query for available values, the following works:

foreach (ValidValue value in this.ReportViewerControl.ServerReport.GetParameters()["myParameter"].ValidValues) {
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C# - Set An Empty String As A Default Value For A DataSource Parameter?

Sep 30, 2010

This doesn't work. I've got an exception from SQL databse that column does not allow nulls.

<asp:SqlDataSource ID="MyDataSOurcet" runat="server"
ConnectionString="<%$ ConnectionStrings:MyConnectionString %>"
InsertCommand="INSERT INTO MyTable(Name) VALUES (@Name) WHERE NameID = 1"
<InsertParameters>
<asp:Parameter Name="Name" Type="String" DefaultValue=""/>
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Web Forms :: How To Check Whether The Int Parameter Is Empty Or Null

Aug 17, 2010

I have set the value of an int parameter to the attribute of a textbox.The textbox can be empty or null, how to check whether the parameter is empty or null?

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May 7, 2015

I am trying to retrieve asp.net C# List method in JavaScript by referring Send-and-receive-JavaScript-Array-to-Web-Service-Web-Method-using-ASP.Net-AJAX ..My Code as below

Javascript

<script type = "text/javascript">
function GetAllSVGData() {
PageMethods.GetSvgElements(OnSuccessSVGElements);
}
function OnSuccessSVGElements(response) {

[code]....

My problem is JavaScript function OnSuccessSVGElements is not firing. When I put breakpoints in it is working fine in C#.  C# Method Working But Alerts in javascript not working.

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Add Record Via Jquery Ajax Call To Webmethod And Update Dropdown List

Jan 26, 2010

i manage to add recrod via jquery ajax call to webmethod but i want to update the dropdown list once the record is been added. i dont want to use update panel. what would be the best way of doing that.

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Security :: Role Membership Returns The Error : The Parameter 'username' Must Not Be Empty?

Jul 16, 2010

[Code]....

returns the error: The parameter 'username' must not be empty.Parameter name: usernameI want to check if a user is logged. If not logged in redirect to loginerror.aspx.

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AJAX :: ASPX WebMethod Not Running The WebService Webmethod Returning The Page?

May 19, 2010

I have a service that works great on my development box. It uses JQuery to hit my web service, and then the JSON results are sent back.

The web service is located on our basePage.cs. We didn't want to put out an external WebService for this. Our on beta box something different is happening.

The web page seems to be trying to call the web method correctly - the JSON data is being sent... but the server doesn't seem to know it's a webmethod. here's my service function (it's in our basepage.cs which inherits from Page).

[Code]....

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MVC :: Following Overview Video - Dropdown List Empty

May 12, 2010

I'm new to MVC and trying to follow along to the 10-minute overview video at: [URL]. I'm running into a couple of problems starting at the 3:30 mark:

1. When I type in the following code as seen in the video, the DB class isn't found? Is there some namespace I'm meant to include or something?
[Code]....
2. At 3:53, I cannot select my model to create a strongly-typed view - the dropdown list is empty.

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Jul 14, 2010

I have some labels on my Page (e.g. Label1...Label100).

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Jan 11, 2010

I am using a Gridview with datasource is a List. How can I show the header if the List is null or for a empty gridview?

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Javascript - Dropdown List Returning Selected Value Empty?

Aug 11, 2010

I use to populate Dropdown using javascript:

function populateDDL(ddl_id) {
var option_str = "";
var x;
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}
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}

This is sure the datalist is not empty and also Dropdown list populated perfectly..but dnt know why after clicking on my page add button I am not getting the selected value.

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How To Get The Individual Parameters From The List Of Dynamic Parameters In A Webmethod

May 12, 2010

I am using jquery ajax method on my aspx page,which will invoke the webmethod in the code behind.Currently the webmethod takes a couple of parameters like firstname,lastname,address etc which I am passing from jquery ajax method using

data:JSON.stringify({fname:firstname,lname:lastname,city:city})

now my requirement has been changed such that,the number and type of parameters that are going to be passed is not fixed for ex.parameter combination can be something like fname,city or fname,city or city,lname or fname,lname,city or something else.So the webmethod should be such that it should accept any number parameters.I thought of using arrays to do so, as described here.

But I do not understand how can I identify which and how many parameters have been passedto the webmethod to insert/update the data to the DB.

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Jun 29, 2010

I have a dropdown list that is populated by certain information. However, though, I would like the dropdown to be empty whenever the page loads.

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Data Controls :: OLEDB Provider List Is Empty In VS 2005

Aug 8, 2013

I am in a middle of an windows application  in C#, i have used sql server as database. Now the issue is that i am using a crystal report from VS 2005, when i am working with  databse expert. The OLEDB Provider list is empty.

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MVC :: Passing A List As A Parameter With BeginForm()?

Mar 2, 2011

I am using HTML.BeginForm to create a form on my page. I need to pass a list of classes I created as a parameter. It's done like this:

<%
using ( Html.BeginForm("DisplayCompanions", "CCDReviewController", new { CompanionList = Model.CompanionList} ) )
{ %>

When I click a "Continue" button (enclosed in the form tag), the "DisplayCompanions" method on my Controller ("CCDReviewController") should be called, as I've set a breakpoint on it. But it's not being called.

Note that Model.CompanionList is a generic list of classes that I created.

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Forms Data Controls :: Strategies For Removing Empty List Items From A Listview Upon Render?

Sep 29, 2010

using asp.net 4 and vs 2010 I have a listview that displays data from a database. I have to configure it to display all column data where present, however, not all columns have data, with the result that blank spaces get rendered where this data would normally be displayed.

The code:

[Code]....

So, for example, some of the individuals that exist in this table might no longer be associated with a specific department, institution or have data in the "Address2" column.

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