Forms Data Controls :: Getting A Boolean Response From An Eval Operator?

Oct 18, 2010

I would like to use an eval stmt to return a true/false for the visible property of a HyperLinkField. IF clientComment exists, I would like it to return True, if clientComment is null or "", then would like it to return False.

By default I noticed it already will not show the hyperlink if clientComment is Null, however the bug I'm running into is if the client enters a comment but then later deletes it so it's not null but blank, or "", in which case the HyperLinkField will incorrectly display. Here's my attempt so far but I'm obviously hitting a wall:

Visible='<%# Eval("clientComment")==Null or =="",False) %>'

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Forms Data Controls :: Operator '=' Is Not Defined For Type 'DBNull' And String Rejected

Oct 8, 2010

I know that the problem is my field having NULL values. However, I don't know how to have it process the code even if the field have nullshere's my code:

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I'm sure this is something simple that I have overlooked, but whilst configuring my SQLDataSource, I have tried to add a where statement onto a column in my datatable that has a data type of 'bit'. I have tried typing 'WHERE Answered = "0"' for false and also 'WHERE Answered = "false"'. The data source doesn't return any rows to my detailsview with either statement.

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Forms Data Controls :: Getting Error - CS0019: Operator '/' Cannot Be Applied To Operands Of Type 'object' And 'int'

Jul 21, 2010

I am moving a website to a new framework. But the old site is in vb and the new on I'm coding it in C#.

I have this line of code that I can't figure out, This is on the aspx page. It's in a datagrid as well.

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The line that is messing up is the second to last one where it starts with </a>(<%#Math.Round....

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Forms Data Controls :: Evaluating Boolean Column In DataGrid

Mar 2, 2010

I have a boolean column in a datagrid that I would like to display as red/green image (I have already created these) instead of false/true. Or maybe I could display the "True" in green text and "False" in red text. Can someone point me in the right direction?

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Forms Data Controls :: Customizing GridView To Display And Edit Boolean Data?

Nov 4, 2010

I'm quite new to ASP.NET programming, so excuse me if my question is dumb.I have the need of showing a grid (A GridView ?) of boolean values. But instead of showing checkboxes, I want to show the cells filled with black (value is true) or white (value is false). I understand I can do that by crafting a TemplateField and changing the style of the cell to select the correct background color and never displaying an actual value. I have not tried but I think it could work. The grid will contains 99% of boolean values and will contain something like 20 rows of 100 columns (2000 cells).

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Forms Data Controls :: Dropdown List To Boolean Data In Gridview?

Mar 24, 2011

I have a boolean gender value in my database. via a linqdatasource I would like to display this in a gridview template.

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Forms Data Controls :: Data Formatting From String To Boolean?

May 4, 2010

I have the following code that works fine:

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Forms Data Controls :: Evaluating A Boolean True/false Within An Label Tag

Dec 10, 2010

I have an asp:label field for and expire date that should either display "Never" if the database field ([msDS-UserDontExpirePassword] this is a bit - true/false - field) is True, or otherwise display a date (pwdExpireDate).

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Here's the code:

The label: <asp:Label ID="lbUserPWExpireDate" Text='<%# ((bool)(Eval("[msDS-UserDontExpirePassword]"))==true ? "Never" : Eval("pwdExpireDate", "{0:M/dd/yyyy}")) %>' Runat="Server"/>

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Forms Data Controls :: AutoPostback Checkbox For Quickly Updating A Boolean Column In GridView

Jan 24, 2011

In trying to improve 'user experience' with a GridView, I have an administrative application where a GridView is displaying records from a SQL table. One of the columns is a bit column, and is displayed as a checkbox in the GridView. I want the user to be able to simply check or uncheck the box while viewing the GridView, and the value in that column for that record is immediately updated. So I set AutoPostBack="true" on the CheckBox in the GridView's Template Field.

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Forms Data Controls :: Listview: How To Get The Background Colour Changed Based On A Boolean Value In A Table

Sep 17, 2010

I come across the technique on how to apply a different CSS class to make a row stand out from the others. However, the original code is for gridview whilst I am trying to get it works on a listview. The original code for the gridview is as follows and how to get it done on listview.

-----------------------------------------------------------------------

[Code]....

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Forms Data Controls :: Changing Row Color In Grid View Based On A Boolean Field Using Rowdatabound Event

Aug 4, 2010

I know that variations of this same question have been posed numerous times - but I can't quite seem to find the exact solution.

I would like any row in my gridview where the boolean field "Approved" is True to be shaded gray. Here is the code that I'm using, but every row ends up being gray, regardless of the value in that "Approved" field. My guess is that I'm not correctly evaluating the boolean value in this field (which is actually a yes/no field in MS Access), Not sure if I should be reading that value as "-1", "Yes" or "True" or "NotNull"? Anyway, here is the code:

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Forms Data Controls :: If Statement And Eval From A Datalist C#?

Jan 25, 2011

I have a datalist and would like to add an if statement within the Text part of my label.

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Forms Data Controls :: How To Concate 2 Eval In Listview

Jun 9, 2010

i think its a simple problem but i am strugling with it i have list view, and in item template i am bounding a label with 2 fields that is first name and last name

i am tring this code

Text='<%# Eval("firstname") + Eval("lastname") %>'
/>

but it gives error taht Operator '+' cannot be applied to operands of type 'object' and 'object' for single value it works that is

Text='<%# Eval("firstname") %>'
/>
and even for constant concatenate it works that is
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/> .... is working fine

I tried different arrangement but its not working that is

Text='<%# Eval("firstname","Lastname") %>'
/>
Text='<%# Eval("firstname" + "Lastname") %>'
/>

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Forms Data Controls :: BC30451: Name 'Eval' Is Not Declared

Apr 27, 2010

My web application works if I don't compile it, when I compile, it gives me this nasty error and I am clueless to what I did wrong?

Here is the error: No where in my line 113 has any Eval nor my entire page has any Eval, I used Bind so what is going on? the strange thing is if I leave the page as is with out Publish web site option the same page works perfectly fine.

BC30451: Name 'Eval' is not declared

Line 111: <asp:TemplateField HeaderText="Property Name" SortExpression="PropertyName">
Line 112: <ItemTemplate>
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Source File: c:inetpubwwwrootJPM2010UserPropertySearch.aspx Line: 113

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Mar 4, 2011

I have a repeater that has been given a datasource from my database containing pictures. The problem is that when i create and log a user into my site i send him to a folder that has no access from others than the ones with a roles called User. When he creates his profile, he uploads a picture which is saved in the same folder "User/picture/picturename" and in the database "picture/picturename".

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Forms Data Controls :: Include Text In Eval?

Nov 4, 2010

<asp:Label ID="Label13" Runat="Server" Text='<%# (decimal)Eval("CelaDnevnica") > 0 && (int)Eval("CelaDnevnicaStevilo") > 0 ?
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Forms Data Controls :: Data Bind In GridView At Level Through Eval Function?

Jan 12, 2011

I want to bind two column on single level in GridView

I m using this code

<asp:Label ID="Label1" runat="server" Text='<%# Eval("lChannelName")+ " " +Eval("lTransformData") %>' >
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Forms Data Controls :: GridView Data Binding With Nested Query Instead Of Eval()?

Jan 11, 2010

I ran into this kind of situation many times without a nice solution. Binding a data source to a gridview and one of the column require nested query. Is it possible to have a callback function other than Eval()?

something like CallbackFunc(Eval("SomeField"));

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DataSource Controls :: Data Types Text And Varchar Are Incompatible In The Equal To Operator?

Jul 4, 2010

I get the following error: The data types text and varchar are incompatible in the equal to operator.here's my code (PageName is a string Parameter) :

SqlConnection sql = SQLconnection();
en();
SqlCommand cmd = new SqlCommand();
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[code]...

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Forms Data Controls :: Storing Eval Value In A Variable Or IF Statement?

Jul 8, 2010

How do I store an Eval in a variable or use the value of the Eval in an if statement?

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Forms Data Controls :: Conditional Eval Statement In Gridview?

Nov 18, 2010

I have a conditional Eval statement in a Gridview that returns a boolean result to display an image if two datafields(strings) are identical:

Visible='<%# Eval("customerA").Equals(Eval("customerB")) %>'

Works great except I don't want the image to display if both datafields are empty. How can I add that logic into this Eval stmt?

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Forms Data Controls :: ListView Renders All Eval Statements Except One?

Feb 16, 2010

I have a ListView bound to a database view (vw_Reunions). The Eval statements in the ItemTemplate render the data in vw_Reunions just fine but I have one in the LayoutTemplate that doesn't display. Can anyone tell me why?

[Code]....

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Forms Data Controls :: Date Bind By Eval Method?

Feb 2, 2010

I m tring date bind from database.

I have a date=2/2/2010 12:00:00 AM

i want to show only 2/2/2010

I m use that code source with a Repiter control <%#Eval("Course_Date")%>

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