is there something special with other data type beside string in the data contract? I have two properties with decimal and datatime datatype. Everytime I change the value (either in client side and server side), the changed value will not be reflected in the other end (say if the client changes the value then the service will not see the changes). However, everything works ok for string datatype.
View 7 RepliesI'm trying to retrieve selected DataKeyValue and I'm getting this error.
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I am binding SQL data to a GridView. The GridView's DataKeyNames property is set to the SQL column called "utID"
I know that within the SQL results, some of the utID values are NULL. After databinding to the GridView, I need to enumerate through the GridViewRows an read the DataKey values. However, when I try this I get the following error:
No default member found for type 'DBNull'. I am using the code below.
What object types are stored within DataKeys (I thought it was just integers or strings)
How to handle a NULL datakey value to prevent this error occurring?
I don't want to use Try Catch because it's too much of a 'hack'
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I am making a website to store invoices so i can mail them to clients. So i got a table for clients, invoices and one with invoice products/services. When an invoice has no products/services added to them and it returns null i get the error "the null value cannot be assigned to a member with type System.Decimal which is a non-nullable value type."
I just started with linq. Before i always used mysql. Mostly i just had to call data from 1 table so forgive me if my linq query isn't really correct.
Dim invoices = From i In db.invoices _
Group Join p In db.products On i.id Equals p.invoiceId Into invoiceProducts = Group _
Select New With {i.client.naam, i.titel, (From iP In invoiceProducts Select iP.prijs).Sum}
i show the client's name, the title of the invoice and the total amount the clients will need to pay for products and services.
when i try to run an web application in visual studio 2008.. i got this error...
'PopupWindow': member names cannot be the same as their enclosing type
also while correcting errors my startup web page changed..dont know how to setback the original startup webpage...
public partial class PopupWindow {
/// <summary>
/// frmPopupWindow control.
/// </summary>[code].....
I have created a ASP.NET 3.5 web application and in it I have SearchGridView.vb class file in the directory Old_App_Code. This file creates a namespace MyApp.WebControls, which is also referenced in web.config in a namespace tag, as well as included as an import directive at the beginning of my content page. Unfortunately, I receive the following error: Warning 1 Namespace or type specified in the project-level Imports 'MyApp.WebControls' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases. Here's the first several lines of my class file SearchGridView.vb:
[Code]....
why this is happening, as well as possible fixes? I cannot impement the asp:SearchGridView due to this error.
I am getting an exception on a linq to sql query:The null value cannot be assigned to a member with type System.DateTime which is a non-nullable value type.
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Public Sub gridedit_DeleteCommand(ByVal sender As Object, ByVal e As DataGridCommandEventArgs)
Dim con As New SqlConnection(GetConnectionString())
Dim U_ID As String = gridedit.DataKeys(e.Item.ItemIndex).Value.ToString
cmd.CommandText = " Delete from AtdWeekend where WeekendID=" & U_ID
cmd.Connection = con
[Code] ...
Data save in table in WeekendID as char format so here it gives error how can I resolve it...
I got the following error when i tried to insert a new record after the run my project, so what does this error indicates?
"{"Cannot insert explicit value for identity column in table 'Articles' when IDENTITY_INSERT is set to OFF."} System.Exception {System.Data.SqlClient.SqlException}
"
This is driving me nuts. I'm trying to make a better search function for my database. I've had this working before but for the life of me I can't see where the problem is.
The error is: Public member 'Text' on type 'String' not found.
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I have an EntityDataSource for a listview control. Based on the value of a query string, I want to be able to filter the data by the first letter of the last name. So what I need is something like this:
EntityDataSource1.Where = "it.LastName.StartsWith('A')"
but I'm getting an error: 'StartsWith' is not a member of type 'Edm.string' in the currently loaded schemes.
When i click on the page that represents a controller the following error was displayed:-
"The null value cannot be assigned to a member with type System.Int32 which is a non-nullable value type"
On this link of code
var articleapproval = articletyperepository.FindAllArticlesRequireMyApproval().ToList();
while the FindAllArticlesRequireMyApproval execute the following LINQ statement :-
var articleapproval= articletyperepository.FindAllArticlesRequireMyApproval().ToList();
where this methods calls the following LINQ statement:-
My code:
[Code]....
If the value is null writes out that error.How to check if the value is null? And if the value is null, I want to store + 1
my website comes from a .net 20 config and am now on 4.0
For this line: Imports AjaxControlToolkit
I get this error: "namespace of type specified in the Imports 'AjaxControlToolkit"
I could remove that line, were it not that it also says this line: Private _questions As CascadingDropDownNameValue
error: Type 'CascadingDropDownNameValue' is not defined.
My web.config has been upgraded, I have placed the latest ajaxcontroltoolkit.dll in my bin folder...what more can I do?
I have the following:
[code]....
I keep getting this error:
Message = "The conversion of a char data type to a datetime data type resulted in an out-of-range datetime value."
What i'm trying to do is group by ContentObjectId and then get StartDate that is greater than today.
I'm using entity framwork and MS SQL2008
How do we get Text as a member of 'System.Data.SqlClient.SqlParameter'
See example of 'System.Data.SqlClient.SqlParameter', below:
[Code]....
Here is the snippet code to insert the Text as a member of 'System.Data.SqlClient.SqlParameter'
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I have two member roles at my project:
1.) Administrator
2.) Member
From the toolbox in Visual Studio 2008, I have dragged and dropped the create user wizard into the stage. I aim that a guest can register itself and automatically join the "member" role. Not the role "administrator". How can I do that?
I'm getting this message when going to a web app that accesses my service.
"The content type text/html of the response message does not match the content type of the binding (text/xml; charset=utf-8)..."
The thing is, it happens once in a while even when no changes have been made to the service or the web app. And I can make it go away most of the time by going directly to the .svc?wsdl page in my browser and then coming back to the web app.
I have a working web app that uses a web service which is compiled into its separate assembly. I have another class library project compiled as a separate assembly that serves as a proxy to this web service. This all seems to work at runtime but I am getting this warning at compile time which I don't understand and would like to fix:
I have dozens of webforms in the main project that reference the proxy class with no compile time complaints as this snippet shows:
[Code]....
And yet I have one webform (also in the root of the main project) which gives me the "not CLS-compliant" message but yet attempts to reference the proxy class just like the other ASPX files. I get the compile time warning on the line annoted by me with 'ERROR here..
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This makes no sense to me. The file with the warning is called frmHome.aspx.vb; all others in the project declare things the same way and have no warning. BTW, the webservice itself returns standard datatypes: integer, string, and dataset.
I have following model class:
public class WebModel
{
public List<ArticleModel> Articles { get; set; }
}
public class ArticleModel
{
public int ID { get; set; }
public double ValueParam { get; set; }
}
Then I have the controller with the two actions:
[Authorize]
public ActionResult Index()
{
WebModel model = new WebModel();
ModelConverter.ConvertToModel(model, controller);
return View(model);
}
[Authorize]
[HttpPost]
[ValidateInput(false)]
public ActionResult Index(WebModel model, string saveButton)
{
ModelValidation.ValidateWebModel(model, ModelState);
if (ModelState.IsValid)
{
return RedirectToAction("Create", "Article");
}
ModelConverter.ConvertToModel(model, controller);
return View(model);
}
And this is my view:
<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<Web.Models.WebModel>" %>
<asp:Content ID="Content1" ContentPlaceHolderID="MainContent" runat="server">
<%var controller = Session["controller"] as Web.Code.SessionController; %>
<%Html.BeginForm(); %>
<div>
<table width="100%">
<%foreach (var article in Model.Articles)
{%>
<tr style="text-align: right">
<td>
<%:Html.DropDownListFor(m=>m.Articles.FirstOrDefault(f=>f.ID == article.ID).ID, new SelectList(controller.CurrentProdukt.Articles.AsEnumerable(), "ID", "Name", article.ID)) %>
</td>
<td>
<%:Html.TextBoxFor(m => m.Articles.FirstOrDefault(f => f.ID == article.ID).ValueParam)%>
</td>
</tr>
<%} %>
</table>
</div>
<table style="width: 100%">
<tr>
<td>
<input type="submit" name="saveButton" value="Save" />
</td>
</tr>
</table>
<%Html.EndForm(); %>
</asp:Content>
If I press the submit button, I get to the second action method in the controller (the one with the HttpPost attribute). In this action, the object model itself is not null, but the "Articles" list inside is null.
I have a profile variable, and when I load it then it is assigned default values. I need to check to see if it has ever been assigned. Typically I'd use an is null comparison but that won't work.
It was suggested I use the FindProfilesByUserName which seems backward. Regardless this method wont work as it only tells me if the user has any profile created but not for the specific member data I'm interested in. (It seems backwards because the whole purpose of the profiles was to make it easy to access the current user profile data. This seems like a bad design unless I'm missing something.)
The last option I can see is assigning bits to every object to see if they were dirtied or set. I don't want to do this unless required though.
Here is the FindProfilesByUserName sample :
ProfileInfoCollection profileInfo = ProfileManager.FindProfilesByUserName(ProfileAuthenticationOption.All, Membership.GetUser().UserName);
if (profileInfo.Count > 0)
{
if (profileInfo[Membership.GetUser().UserName] != null)
when my application start, browser stops saying that onRowUpdating = "GridView1_onRowUpdating" is not a member of asp:default.apsx.
How can I fix this problem?
I'm using VisualStudio 2010.
Here is the html:
<asp:GridView ID="GridView1" runat="server" AllowPaging="True"
AllowSorting="True" AutoGenerateColumns="False" CellPadding="3"
DataKeyNames="codice" DataSourceID="SqlDataSource1"
EmptyDataText="Non ci sono dati da visualizzare." Font-Names="Verdana"
Font-Size="Small" ForeColor="Black" GridLines="Vertical" BackColor="White"
BorderColor="#999999" BorderStyle="Solid" BorderWidth="1px" OnRowUpdating="GridView1_OnRowUpdating">
I have the following code that gives me the error "'DataSource' is not a member of 'gridview'.".
what's wrong here? I'm working in the page load of my aspx page
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Argh.. I've run into thei before,but can't remember how I solved it.I have a gridview with a button in a template field.I've added an event to the button,but am getting the dreaded 'RowIndex' is not a member of 'System.EventArgs' error.
I'm trying to grab the value of a label in the gridview for the row that is selected when the button is clicked.Should I be using something other than e.RowIndex?
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I have a FormView that allows a user to register for a company event. I want to do a couple of things with this form.
1. I need to write this data to a MS SQL database
2. I need to send an email confirmation of their registration to their email.
I know how to do both of these things, but i am having trouble doing both at the same time.
It would be nice if I could do it in one click, but I coded it into two pages to try to help simplify it.
The first page allows the user to input their information into a formview and when they click the submit button, it places those answers into session variables:
[Code]....
[Code]....
The Second page confirms the users information by taking those session variables and placing them into labels:
[Code]....
[Code]....
However, after I place information into the formview on the first page, it throws up this error:
"Conversion from type 'TextBox' to type 'String' is not valid".