MVC :: Dictionary Have Value Null When Returning From Views?

Nov 20, 2010

My model include this attribute

public class RegisterModel
{
//blah blah Attribute[code]....

before run into the view , i check the field , see it contain value . But after running through this view

[Code]....

The output field is null , while other attribute still ok , why is it ?how can i resolve this ?

View 5 Replies


Similar Messages:

Clean Way To Output Values In MVC Views When Value Is Not Null?

May 21, 2010

Is there a better way to write the code below? I have quite a few blocks that are similar, and this is making the code in the Viewpage very messy to work with. The data value with the associated label only needs to be output when certain conditions are met, which is almost always if the value is not null. The options I can think is to use a response.write to atleast minimize the usage of the ASP script tags, or to format the webpage is such a way that the label displays with an appropriate n/a type value.

<% if (myData.Balance != null)
{ %>
Balance: <%= String.Format("{0:C}", (myData.Balance))%>
<% } %>

View 2 Replies

GetPreloadedEntityBody Function Is Returning Null Always For IIS 7.0

Jun 10, 2010

This is regarding GetPreloadedEntityBody() function of HttpWorkerRequest class . I am using this method to get perloaded data of requested page. but GetPreloadedEntityBody() function alway returns me null value , while same code is working for server with IIS6.0

1) I have Application_PostAcquireRequestState event . on which i do all user releated validation.

2) After Sucessful validation i am creating object like below code snippet of worker process.

Dim hwr As HttpWorkerRequest =
CType(context.GetType.GetProperty("WorkerRequest", Reflection.BindingFlags.Instance
Or Reflection.BindingFlags.NonPublic).GetValue(context,
Nothing), HttpWorkerRequest)

3) AFter That checking where request has body or not and the calling GetPreloadedEntityBody() which is returning null alway for IIS7.0 ,while in IIS6.0 same code is working fine.

if hwr.HasEntityBody
Then
Dim preloadedBufferData
As Byte() = hwr.GetPreloadedEntityBody()
end if

what more do i have to do so that i can get return value form GetPreloadedEntityBody() function.

View 2 Replies

DataSource Controls :: Returning Null Value From Procedure?

Jun 17, 2010

[Code]....

iam using asp.net2.0 with c# with sql server 2000 when iam executing the procedure in local system it is working fine.but when iam executing in client system procedure returns null value, i have checked all connection string , and session value all are working

View 1 Replies

Web Service Returning XML Result And Nodevalue Is Always Null?

May 25, 2010

I have an ASP.NET web service which returns an XMLDocument. The web service is called from a Firefox extension using XMLHttpRequest.

var serviceRequest = new XMLHttpRequest();
serviecRequest.setRequestHeader("Content-Type", "text/xml; charset=utf-8");

I consume the result using responseXML. So far so good. But when I iterate through the XML I retrieve nodeValue - nodeValue is always null. When I check the nodeType the nodeType is type 1 (Node.ELEMENT_NODE == 1).

Node.NodeValue states all nodes of type Element will return null.

In my webservice I have created a string with the XML i.e. xml="Hank"

I then create the XmlDocument
XmlDocument doc = new XmlDocument();
doc.LoadXML(string);

I know I can specify the nodetype using using CreateNode. But when I am just building the xml by appending string values is there a way to change the nodeType to Text so Node.nodeValue will be "content of the text node".

View 1 Replies

State Management :: ViewState Returning Null On Postback?

Apr 18, 2010

Im currently experincing some difficulties with the viewState. The scenario is that i have a datagrid that has a column of buttons that when pressed will store a value in the viewState. I have already done this on one occasion in the same page, but for some reason the second item in the view state is always returning null, even when i hardcode in a number in before the postback. Im at a loss as to why this is happening, anyone expericened this and know what is wrong.

EDIT: Ive found out the cause, Its due to when you click a button in a data grid it does the postback code first, then fires the event handler, so of course the view state would be empty as it is coded to be set in the event handler for the button click. Is there any way to avoid that? So the event code is fired before the postback code?

View 5 Replies

Web Forms :: Radio Button Returning Null When Checked?

Apr 7, 2010

I have 3 radio buttons op1, op2, op3 working as a group. In the code behind I check to see if a paticular button is checked, then do some processing. The problem is all the buttons return null. Checked in the debugger and all values are null even op1 which value is set to true.

Front end code for the buttons are:

<asp:RadioButton ID="op1" runat="server" AutoPostBack="True" Checked="True"
GroupName="searchOPT" oncheckedchanged="op1_CheckedChanged" />
<asp:RadioButton ID="op2" runat="server" AutoPostBack="True"
GroupName="searchOPT" oncheckedchanged="op2_CheckedChanged" />
<asp:RadioButton ID="op3" runat="server" AutoPostBack="True"
GroupName="searchOPT" oncheckedchanged="op3_CheckedChanged" />

The test in the code behind is:

if (op1.Checked)
{.....do stuff...}
if (op3.Checked)
{.....do stuff...}
if (op3.Checked)
{.....do stuff...}

View 5 Replies

Web Forms :: Getting Data Source Value Dynamically Is Returning Null Value?

Jul 8, 2010

i want to get dynamically the Data Source value from which system iam acessing the website and concatenate in connection String

but still showing null value

[Code]....

View 2 Replies

Forms Data Controls :: GridView Returning Null Labels?

Feb 8, 2010

This problem is driving me nuts. I have labels inside a gridview. When i reference them, i keep getting a null error. This is definatly that it cant find the labels inside the template. below is my code that i am using.

[Code]....

View 9 Replies

Web Forms :: Configuration Manager - Connection String Is Returning Null

May 7, 2015

[URL] .....

I have an error with this tutorial.

Line 13:
Line 14: Private Sub BindGrid()
Line 15: Dim constr As String = ConfigurationManager.ConnectionStrings("constr").ConnectionString
Line 16: Using con As New SqlConnection(constr)
Line 17: Using cmd As New SqlCommand("Customers_CRUD")

Imports System.Data
Imports System.Configuration
Imports System.Data.SqlClient
Public Class tessatusatu
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

[Code] ......

View 1 Replies

DataSource Controls :: Stored Procedure Returning Null But Executes At SQL Server

Jul 1, 2010

I am using
SqlHelper.ExecuteDataset(MyConnectionString, CommandType.StoredProcedure, "GetInformation", new SqlParameter("@ID", ID));

In my stored Procedure, I am doing a lot of calculation with joins and it took 19 sec to execute at my sql Server 2008. My application had been working perfectly for 5 days but now as database increases, I found a problem that my connection is breaking at that point. At Sql Server, it execute fine but when I add a breakpoint and watch the stored procedure is returning null.

View 2 Replies

MVC :: Nullable DateTime And DatePicker - Dictionary Requires A Non-null Model Item Of Type 'System.DateTime

Apr 1, 2011

I have a problem:

I've created usual Controller and View(Edit view) for editing my Entity (EntityFramework)

Here is view example:

<div class="editor-field">

@Html.EditorFor(model => model.BirthDate)

@Html.ValidationMessageFor(model => model.BirthDate)

</div>

BirthDate is Nullable<DateTime>

but during loading my View I get this exception

The model item passed into the dictionary is null, but this dictionary requires a non-null model item of type 'System.DateTime'.

That's because of BirthDate is null in database but it is nullable and I expect that it just leaves the filed empty.

And I have Shared EditorTemplate:

@model System.Nullable<System.DateTime>

@if (Model.HasValue)

View 2 Replies

C# - Static Methods Updating A Dictionary<T,U> Is It Safe To Lock() On The Dictionary Itself

Dec 23, 2010

I have a class that maintains a static dictionary of cached lookup results from my domain controller - users' given names and e-mails.My code looks something like:

private static Dictionary<string, string> emailCache = new Dictionary<string, string>();
protected string GetUserEmail(string accountName)
{
if (emailCache.ContainsKey(accountName))
{
return(emailCache[accountName]);
}
lock(/* something */)
{
if (emailCache.ContainsKey(accountName))
[code]...

View 6 Replies

Forms Data Controls :: Gridview RowCommand Event Returning Null Values?

Sep 2, 2010

I'm trying to retreive values entered by users in the textboxes in the footer of the gridview and insert these values into another sql table.My code is as follows :-

protected void GridView2_RowCommand(object sender, GridViewCommandEventArgs e)
{
if(e.CommandName.Equals("addnew"))
{
TextBox t1 = (TextBox)GridView2.FooterRow.FindControl("tfrm");
string frm = t1.Text;
TextBox t2 = (TextBox)GridView2.FooterRow.FindControl("tsub");
string sub = t2.Text;
string cmd = "insert into suggestions values('" + frm + "','" + sub + "','c','c')";
con.Open();
SqlCommand com = new SqlCommand(cmd,con);
int a = com.ExecuteNonQuery();
GridView2.DataBind();
con.Close();
}
}

But the strings 'frm' and 'sub' returns null values.

View 8 Replies

C# - Why Is The Call To Request.QueryString["ReturnUrl"] Returning NULL

Jan 29, 2010

(This is a more narrow question)

In my asp.net MVC action, I am looking if the ReturnUrl value is in the URL.

My Url looks like this:

[URL]

In my action, I am looking if that querystring value exists, and it is returning NULL?? How can this be?

The code:

if(Request.QueryString["ReturnUrl"] != null)
{
}

Tracing through the application, it is just skipping the if statement's body i.e. it is NULL.

How can this be explained?

[URL]

View 2 Replies

When Submit The Form And Returning ViewModel Of Type QuestionViewModel The Type Is Null

Jul 8, 2010

My problem is that when I submit the form and returning my viewModel of type QuestionViewModel - the Type is null.

See code below.

[code]....

View 1 Replies

State Management :: Session State Returning Null Values?

Apr 29, 2010

I have a clear button and a textbox in an aspx page. I set the session variable in this page as

String str = Textbox1.Text;

Session["TypeIds"] = str;

and I clear the sessions in a clear button event as

Session["TypeIds"]=null;.

Then when the user types some value in the textbox ,on Response.Redirect on another aspx page, the session variable returns null values.It does not retain its session state. The session state has to be maintained in the next page. Is it because this clear button event and setting explicitly to null creates this problem?

View 7 Replies

C# - GridView Returning Null When Try To Grab The GridView To Display Data?

Jul 12, 2010

I am trying to return the table of Users and display it on a page which uses a masterpage.

My master page file called AjaxMaster.Master looks like this -

[code].....

View 3 Replies

DataSource Controls :: Create A Dictionary... Where Can Get Dictionary Database Or World Lists (english To English , English To Hindi?

Mar 5, 2010

I want to create a Dictionary... where i can get Dictionary database or World lists (english to english , english to hindi)

View 1 Replies

C# - Is Returning List<T> From Method Differ In Performance From Returning Collection<T>?

Jul 18, 2010

We have a web project that contain its business methods in a class library project called "Bll.dll"
some methods of Bll.dll return List<> ... from a source - that i don't remember now - told that returning Collection<> is better than returning List<> Is it a valid ? Note that i don't make any process on values returned from BLL methods .. just view it in a web page

View 5 Replies

Added 5 Views In The MultiView But All Views Are Tight Together?

Sep 28, 2010

I am learning MultiView control.Here are question:I added 5 views in the MultiView but all views are tight together. I can not drag and drop another control such as text boxes or labels into view area.

View 15 Replies

C# - .NET MVC Partial Views And Routing - Using Ajax Calls To Trigger A New Request But Non Of The Partial Views Are Refreshed

Mar 9, 2010

I have an MVC view that contains a number of partial views. These partial views are populated using partial requests so the controller for the view itself doesn't pass any data to them. Is it possible to reload the data in one of those partial views if an action was triggered in another? For example, one partial view has a jqGrid and I want to refresh the data in another partial view when a user selects a new row in this grid. Is there a code example for this scenario (in C#) that I can look at to see what am I doing wrong? I am using ajax calls to trigger a new request but non of the partial views are refreshed so I am not sure if the issue is with the routing, the controller,

View 1 Replies

Partial Views / How To Implement Partial Views

Jun 16, 2010

i want to implement partial views in asp.net

View 1 Replies

Forms Data Controls :: Displaying A Null Or Empty Cell For A Null Datetime Database Value In Gridview?

Dec 6, 2010

I have setup my business object to have a create_date and edit_date members both datetime datatypes. My company want to display the create_date and edit_date fields in a gridview for each transaction. The problem i have is that after insterting a record it will have a valid create_date but no edit_date and when displayed in the gridview it defaults to datetime.minvalue (My default). How on earth do i show an empty field in my gridview for a null datetime field in the database?

I am using similar architecture to the Imar Spaanjaars example of a tiered solution. With a few small tweeks it has worked well for me for ages. I am passing a List<Database> to my object datasource which connects to my gridview.

View 3 Replies

SQL Server :: Inserting Null Value Into Foreign Key Table With Allow Null Enabled?

Oct 2, 2010

I have 2 table Table A, Table B.

Table A - Parent Table

ID - Uniqueidentifier not null(PK)

Table B -Child Table

ID - uniqueidentifier null(FK, TableA)

I have a stored procedure to insert data into Table B, but when I tried to insert a null value into column ID of table B, this error came up:

The INSERT statement conflicted with the FOREIGN KEY constraint "FK_tableB_tableA". The conflict occurred in database "database name", table "table A", column 'ID'.

The statement has been terminated.

The insert statement in asp.net is like so:

sqlcommand.parameter.add(New Sqlparameter("ID", Nothing))

I am guessing adding nothing to the null value column is the problem, but i don't know how to fix it... The INSERT statement conflicted with the FOREIGN KEY constraint "FK_tableB_tableA". The conflict occurred in database "database name", table "table A", column 'ID'.

View 5 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved