Is Echo <%= %> Syntax Evaluated Before The Declared Value Is Bound To The Property

Oct 29, 2010

When are declared values bound to properties of a user control in WebForms?

I have a user control which has a public property which is an enum type. In my aspx page I'm setting it's value declaratively. In the ascx I'm outputting the value to the page using <%= %> syntax. The value that is output by the echo syntax is always zero 0. The enum does nopt have a zero value.

My question therefore is, is echo <%= %> syntax evaluated before the declared value is bound to the property?

[code]....

The output is :

<a href="foo.aspx?foo=0">Foo</a>
<a href="foo.aspx?foo=0">Foo</a>
<a href="foo.aspx?foo=0">Foo</a>

I'm going to assume that zero is the "unset" value for any enum member and therefore assume that <%= is executed before the value is bound to the property.

View 1 Replies


Similar Messages:

C# - NVelocity Syntax For Calling Methods With Evaluated Parameters?

Jul 14, 2010

I have a fairly simple template that I need to make a method call from. However, NVelocity does not seem to evaluate method parameters that themselves are NVelocity variables. Take the following NVelocity template:

#if (--- CONDITION SNIPPED ---)
<blockquote class="column span-4">
I MADE IT!
</blockquote>
#else
<blockquote class="column span-4">
$extensionMethods.TestMethod(${var1})
</blockquote>
#end

In the above template, $extensionMethods is passed in as an instance of a class and works wonderfully when passing in evaluated numbers (e.g. $extensionMethods.TestMethod(4) works every time). However, using $var1 causes the entire string to be returned as-is: $extensionMethods.TestMethod(${var1}).

Is there a way to pass in a variable to a method lazily to get the above template to evaluate correctly?

View 1 Replies

Does The EntityDataSource Support "it.Property.Property" Syntax

Jun 9, 2010

I have an EntityDataSource where I'm trying to replace some previous code-behind work. My EntityDataSource looks like:

<asp:EntityDataSource
runat="server"
ID="personDataSource"
ContextTypeName="Model.GuidesEntities"
EntitySetName="CharacterFavorites"
OrderBy="it.Person.FullName"
Select="it.Person.Id"
Where="it.UserName = @userName" />

When when I actually use it I get the error:

'Person' is not a member of type 'Transient.rowtype[(Id,Edm.Int32(Nullable=True,DefaultValue=))]' in the currently loaded schemas.

Does the EntityDataSource not support walking the relationships? How would you do this with the EntityDataSource?

Also the @userName parameter is being added in the code behind for now. Extra points for anyone who knows how to specify a username parameter directly in the WhereParameters collection.

View 2 Replies

How To Echo Something In C# In An .aspx File

Mar 17, 2010

I know you can do this

<%= Request.Form[0] %>

But how do you do something like this?

<% if(Request.Form[0]!=null)
echo "abc";
%>

View 2 Replies

GridView RowStyle Dependent On Property Of Item Row Bound To?

Jan 19, 2010

I'm currently using a GridView and I want to set the CssClass for the Row depending on a property of the object that the row is being bound to.I tried the following:

<asp:GridView id="searchResultsGrid" runat="server" AllowPaging="true" PageSize="20" AutoGenerateColumns="false">
<!-- The following line doesn't work because apparently "Code blocks
aren't allowed in this context --> <RowStyle CssClass="<%#IIF(DataBinder.Eval(Container.DataItem,"NeedsAttention","red","") %>
<Columns>
<!--............-->
</Columns>
</asp:GridView>

Now I could simply handle theGridView's RowDataBound event and change the css class of the row there...but I'm trying to keep a clear separation between the UI and the page/business logic layers.

View 1 Replies

MVC :: Display Foreign Key-bound Property From Model View

Apr 17, 2010

but I am new with MVC and database-driven applications.

I hava a table with Cities (ID,Name) and one with Businesses(ID,CityID,Name). The later has a foreign key relationship with the first table.

I used a linq-to-SQL class to create my models.

My problem is that I need to access the City Name(not the ID) when displaying the Business Model View.

How can I do this? if from my controller I call the View passing the auto-generated Business Model, I only have access to the ID.

View 2 Replies

Syntax To Change The Value Of A Cached Object Property?

Jun 6, 2010

In an ASP.NET 3.5 VB web app, I successfully manage to cache an object containing several personal details such as name, address, etc. One of the items is CreditNum which I'd like to change in the cache on the fly. Is there a way to access this directly in the cache or do I have to destroy and rebuild the whole object just to change the value of objMemberDetails.CreditNum?The cache is set using:

Public Shared Sub CacheSet(ByVal key As String, ByVal value As Object)
Dim userID As String = HttpContext.Current.User.Identity.Name
HttpContext.Current.Cache(key & "_" & userID) = value
End Sub

View 1 Replies

Gridview - Toggle Checked Property Of A Data Bound Checkbox?

Aug 9, 2010

I have a GridView control that has one column of checkboxes set up like this:

<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="RowCheckBox" runat="server" Enabled="false" Checked='<%# (bool)DataBinder.Eval(Container.DataItem ,"Associated") %>'/>
</ItemTemplate>
</asp:TemplateField>

Then when the user clicks an Edit button I run a script that enables all the checkboxes (which works fine), and then when the user then clicks on a checkbox the tick is appearing or disappearing as it should.

The problem I'm having is that when I try to read the value of the checkbox from the codebehind:

CheckBox checkBox = (CheckBox) row.FindControl("RowCheckBox");
bool checked = checkBox.Checked;

If the value bound to it was true then checked is still true, no matter if it was toggled or not.

Edit: Corrected a spelling mistake. Question still stands though...

View 1 Replies

Localization :: LINQ2SQL / Text Label Is Bound To The SwedishText Property In The Mark Up?

Mar 12, 2010

Im using LINQ2SQL and i have an object called Article. Its has 2 properties FinishText and SwedishText. The idea is to let the user choose language. Swedish is default.

I bind the objects to a listView and there is a label that takes the swedish language. When the user presses the Finish flag button i want the objects to reload and the finish text to show instead of the swedish. The problem is that the text label is bound to the SwedishText property in the mark up like this:

<%#DataBinder.Eval(Container.DataItem, "SwedishText")%>

I can think of some ways to solve this, and i have one that doesnt work that well. My question is, what would be a good way to solve this? Im not so experienced so i know that there are lots of you out there that know how to do this much better.

Another problem i dont like my solution to is when i have an object that has a association with my Article object, like ArticleCategory. The ArticleCategoryId of my Article is, lets say 31, which is corresponds to the category "Movies". I dont want to display the category id but rather the name of the category itself (Movies).

So this is what i do:
<%#GetCategoryNameFromId(DataBinder.Eval(Container.DataItem, "Article_Id"))%>

I call a method that recreates the artice object and from there creates the ArticleCategory and gets the name from it. Its a horrible solution cause it involves lots of trips to the Database. Especially since i do similar things with other properties.

Just wanted to hear what is a proper and good way to deal with these common but for me new tasks.

View 1 Replies

ADO.NET :: Creating Linq Sentences From Evaluated Variables?

Nov 29, 2010

If I had the Linq sentence:

var MyDC = new MyModel.MyDataContext();
var MyValues = from p in MyDC.Patio
where p.LoginID == loginId
select p;

Let's say that I have a second variable: MyCurrentTable which could be equal to: Patio, Furniture, Warehouse, Company, etc. depending on the table being used at any given time

From there, how can I get to a kind more generic kind of construction, like this one (for sure I know that the syntax I am using is not ok

var MyValues = from p in ({0}.{1}, MyDC, MyCurrentTable)
where p.LoginID == loginId
select p;

Where MyCurrentTable could be: any table at any given time, having this piece of code to work in a recyclable way, valid for any table.

View 1 Replies

Forms Data Controls :: Use Hyperlink With Repeater - Links Are Not Evaluated Well

Nov 28, 2010

I have a repeater in my page as follows:

<asp:Repeater ID="RepeaterVacancies" runat="server">
<ItemTemplate>
<asp:TableCell CssClass="evenTd" runat="server">
<asp:HyperLink runat="server" NavigateUrl="Vacancies.aspx?VID=<%#DataBinder.Eval(Container.DataItem,'id')%>"
ID="Hyperlink1">
<%# Container.ItemIndex &#43; 1 %>
</asp:HyperLink>
</asp:TableCell>
......
</ItemTemplate>
</asp:repeater>

when I loaded the page, the numbers come fine, but the links are not evaluated well: Instead of linking to Vacancies.aspx?VID=170 for example, the link comes this way: [URL]

View 3 Replies

Call Public Property Declared In A ASPX Page From A Different ASPX Page?

Jan 15, 2011

How can I call a public property declared on a ASPX page from a different ASPX Page? Is that possible? It is a website project. How can I get/call this property from a different aspx page? I have attempted this from the other page, but it is not recognizing the partial class: private Test_Default _test; It does not recognize the "Test_Default"

I.E.

[code]....

View 2 Replies

Access :: Syntax Error (missing Operator) In Query Expression / Get Conflict With CommandText Syntax

Aug 8, 2010

I'm having problem in inserting text from a textbox in which user write or copy some text which may contain special characters ( " , . ) etc. If there is any special character it get conflict with CommandText Syntax and generates error in inserting. I want to insert all these characters. How could i do it?

Code:

[code]....

View 1 Replies

Why Can't Use C# Syntax In Inherits Attribute For A Closed Generic But CLR Syntax Is Fine

Jan 15, 2011

The following CLR syntax works fine in my aspx page:

<%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="Website.MyBasePage`1[HomePageViewModel]" %>

But this C# syntax does not:

<%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="Website.MyBasePage<HomePageViewModel>" %>

Note, I am not using ASP.NET MVC, but this works fine if using System.Web.Mvc.ViewPage<> from ASP.NET MVC.
My MyBasePage looks like this:

public class MyBasePage<TModel> : Page where TModel : class {
public TModel Model
{
get { return (TModel)HttpContext.Current.Items["model"]; }
}
}

View 1 Replies

MVC :: 3 RC2 - Convert ASPX Syntax To Razor Syntax For Asp:Hyperlink?

Dec 15, 2010

For reporting we used report RDLCs and displayed using an ASPX form. We implemented using the route as shown below. This resulted in forcing us to use the page route below and also to use the hyperlink instead of the normal Action Link. The question is how do we convert the asp:hyperlink ASPX syntax to Razor syntax.

//Custom route for reports routes.MapPageRoute( "ReportRoute", // Route name "Reports/{reportname}", // URL "~/Reports/{reportname}.aspx" // File );
<li><asp:HyperLink ID="hypReport" runat="server" NavigateUrl="<%&#36;RouteUrl:routename=ReportRoute,reportname=StaffRpt%>">Staff Report</asp:HyperLink></li>

View 2 Replies

Syntax For Boolean "Not" In "Visible=" Property Of A TextBox?

Mar 11, 2010

VWD 2008 Express. Vivual Basic.

I am trying to tie the Visible property of two textbox controls in a gridview to the value of a property. One I want to be visible is the property is true and one I want to be visible is the property is false. I have not been able to figure out how to express this. I have tried the following, with the non-working line in red.:

[Code]....

The "Not IsInEditMode" does not work as desired. The property code in the VB code behind is:

[Code]....

What is the proper way to code the Visible= property?

View 5 Replies

SQL Server :: EXEC 17P_Comose Will Give Incorrect Syntax Error - Incorrect Syntax Near '17'

Sep 15, 2010

I am working with a sql server database with about 50 stored procedures. The database and stored procedureswere not created by me. The stored procedures all begin with a number in their name.

Example: 17P_Comsetter

The problem I am having is that if I try and execute the stored procedure at the command line in Query Analyzer,the query analyzer appears not to like that the stored procedure begins with a number. For example:

If I try an run the stored procedure as follows:

EXEC 17P_Comsetter

Then I get the following error message:

Msg 102, ..... Incorrect Syntax near '17'

I am using SQL server 2005. Does anyone know why I am getting this error message?

View 1 Replies

ADO.NET :: Not Working Showing Syntax Error Syntax Error:operand Is Missing?

Mar 25, 2011

DataRow[] filterRows = ds.Tables[0].Select("Running Status= case State when 'True' then 'Running' When 'False' Then 'Stoped' end Where Active='1' and State='1'");

this is not working showing syntax error syntax error:operand is missing

View 3 Replies

Access :: Name 'Using' Is Not Declared?

Apr 14, 2010

I get this error when using the code:

[Code]....

What could be the reason for this, as in the offline develope environment I had no problems using this code. Or do I need to create a workaround?

View 3 Replies

How Oledb Connection Should Be Declared

Sep 27, 2010

I m new in asp.net c#.

How to declare a oledbconnection object in asp.net c#.

Means should it be declared as a static or public?

ex:- suppose the object is OleDbConnection con;

Whether it should be static OleDbConnection con;

Or public OleDbConnection con;

View 7 Replies

Web Forms :: Name Txtcscs Not Declared

Jul 14, 2010

I get the above error while compiling and the name is in my .aspx file while i try to assign it in my .vb file like this
IN .aspx file:

<tr>
<td class="txtarialsml">SEC Fee</td>
<td> <asp:TextBox runat="server" ID="txtsec" Width="150px" BorderColor="Silver" BorderStyle="Solid" BorderWidth="1px" ReadOnly="true" CssClass="txtverdlink" Height="18px"></asp:TextBox></td>
</tr>
<tr>
<td class="txtarialsml">CSCS Fee</td>
<td> <asp:TextBox runat="server" ID="txtcscs" Width="150px" BorderColor="Silver" BorderStyle="Solid" BorderWidth="1px" ReadOnly="true" CssClass="txtverdlink" Height="18px"></asp:TextBox></td>
</tr>
<tr>
<td class="txtarialsml">NSE Fee</td>
<td> <asp:TextBox runat="server" ID="txtnse" Width="150px" BorderColor="Silver" BorderStyle="Solid" BorderWidth="1px" ReadOnly="true" CssClass="txtverdlink" Height="18px"></asp:TextBox></td>
</tr>
In .VB file
Protected Sub drpstock_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles drpstock.SelectedIndexChanged
Try
txtsec.Text = ""
txtnse.Text() = ""
txtcscs.Text() = ""
Catch ex As Exception
Session("errorcode") = "blabla"
Session("errordesc") = "This exception occurred while trying to fetch data."
Response.Redirect("../errorpage.aspx")
End Try
End Sub
Public Sub dg_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs)
Dim row As DataGridItem = e.Item
lblData.Text = "in subprocedure"
If row.ItemType = ListItemType.Item OrElse row.ItemType = ListItemType.AlternatingItem Then
Dim day As DateTime = Convert.ToDateTime(DirectCast(row.DataItem, DataRowView)("day").ToString())
Dim tempMonth As Integer = day.Month
Dim lblMonth As Label = DirectCast(row.Cells(0).FindControl("lblMonth"), Label)
If row.ItemIndex = 0 Then
UpdateLabel(lblMonth, day)
End If
If currMonth <> tempMonth Then
'add blank row
currMonth = tempMonth
j += 1
AddRow(row.ItemIndex + j)
UpdateLabel(lblMonth, day)
End If
End If
End Sub

View 8 Replies

Web Forms :: Name 'ClientScript' Is Not Declared?

Mar 4, 2010

I have this line of code on my aspx page that works fine.

[Code]....

i now want to put the same code in a user control, this is when i get the error.

how can i get 'ClientScript' work on usercontroll

View 1 Replies

Security :: Name 'Login1' Not Declared?

Sep 15, 2010

I know I have to be missing something simple, but yes, it's stumped me. I've read a couple posts that are similar, but didn't correct my issue. This seems too easy, so here's my situation. I have a Login.aspx (using VB). Here's my (partial) code for this page:

[Code]....

Then in the Login.aspx.vb, I'm getting the error as stated in this posts subject line:

[Code]....

View 2 Replies

Forms Data Controls :: Name Not Declared Yet?

Mar 11, 2011

At a bit of a loss here. As the subject says, I have a repeater control that uses the variable xmlN which is declared in my Sub Page_Load. Posted code below.

[Code]....

View 2 Replies

Web Forms :: BC30451: Name 'txtUser' Is Not Declared

Apr 27, 2010

Server Error in '/' Application.

Compilation Error

Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: BC30451: Name 'txtUser' is not declared.

Source Error:

[Code]....

Source File: E:JKEClientsHI-VISwebsiteglobal.master Line: 7

View 2 Replies







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