Forms Data Controls :: DataBinder.Eval Versus DataBinder.GetPropertyValue
Oct 4, 2010Can anyone explain me that what is the diff between DataBinder.Eval Vs DataBinder.GetPropertyValue?
View 2 RepliesCan anyone explain me that what is the diff between DataBinder.Eval Vs DataBinder.GetPropertyValue?
View 2 RepliesCan you do something like :
<%# DataBinder.Eval(Container.DataItem,"Column1").ToString().Replace("_",<%# DataBinder.Eval(Container.DataItem,"Column2") %> %>
Can a DataBinder.Eval be nested within another DataBinder.Eval?
I am trying to access column value by using DataBinder.Eval on RowCommand event of Gridview. It always return NOT SET TO ANY INSTANCE error for eveytime. I know how to do this by employing a label control in ItemTemplate, but am trying to find a way to bypass.
Error returned by DataBinder.Eval(row.DataItem, "LinkToInvoice").ToString
ASPX
[Code]....
VB Code Behind
[Code]....
I have a hiddenfield in my datalist .....and its databinded like this
<asp:HiddenField ID="SecondLevelCategory" runat="server" Value='<%# DataBinder.Eval(Container.DataItem, "SecondLevelID") %>' />
the problem arise when this datacolumn in my database have a null value, it throws an error ....how can I get this to work so that DataBinder.Eval can take a null value?
<asp:Label ID="lbl_date" runat="server" Text='<%# Convert.ToDateTime(Eval("dt_pub")).ToString("dd/MM/yyyy") %>'
Â
check for systax errorÂ
It show me server tag not well formed error
I have a listview control on an .aspx page. Inside this list view i want to check "Type" property which comes from database. here is the example code :
[code]...
As a last resort i tried to user DataBinder.Eval() but i get the exception "Expected class, delegate, enum, interface, or struct". What can i be doing wrong? Writing a function in code-behind isn't an option for me.
I've a asp.net linkbutton inside asp.net repeater control which renders multiple link buttons. I want to set the style of each and every linkbutton dynamically.
I'm trying
style="color:#6D7B8D;font-size:<%# DataBinder.Eval(Container.DataItem, "Title")%>;"
But i'm getting "The server tag is not well formed" error.
I have the following object:
CrossTabDataObject
{
string RowName{get;set;};
int RowId{get;set;}
List<string> CellContents = new List <string>();
//Constructor..... etc.
}
I'm building a dynamic crosstab grid using GridView in asp.net 3.5
I wish to bind to CellContents[0] for dynamic column 1, CellContents[1] for dynamic column 2 (dynamic column 0 is the RowName field from the CrossTabDataObject) etc. I am using:
object boundValueObj = null;
Control ctrl = (Control)sender;
IDataItemContainer dataItemContainer = (IDataItemContainer)ctrl.NamingContainer;
boundValueObj = DataBinder.Eval(dataItemContainer.DataItem, strSelectedID);
This code is in the InstantiateIn function of the gridview as I'm creating drop down list templates in each cell of the crosstab.
I have code (not shown) that sets strSelectedID depending on the column being created.
When strSelectedID is equal to "RowName" for dynamic column [0] the DataBinder.Eval function works fine and sets boundValueObj as expected. The problem comes when strSelectedID is set to "CellContents[n]" where n is the Column Index.
DataBinder.Eval only works with properties and fields of objects. How do I get around this?
Do you know why it's FALSE
when I check the value from DataBinder.Eval(Container.DataItem, "Type") i've "Checkbox" so I wonder what is wrong there?
i have one hidden field and i want to bind it with two values of my data base separated by an coma. some thing like
->asp:HiddenField ID="hfRstidDate" runat="server" Value=<%# DataBinder.Eval(Container.DataItem, "tsk_ID"),DataBinder.Eval(Container.DataItem, "Date_Worked").ToString())%>
I have the code below that works fine, but I need to have more than one field using the same command.
[Code]....
I am getting error when i write the belwo code in the code behind.
Error: The name DataIem Does not exist in the context
protected void getHotDeals()
{
D4T.tbDealDataTable dealTable;
dealTable = dealTA.HotDeals();
StringBuilder sb = new StringBuilder();
[Code]....
I try to pass two parameters to code behind
Into gridview
Visible='<%# Show(DataBinder.Eval(Container, "DataItem.Id").ToString()) %> + <%# MostrarBotonBorrar(DataBinder.Eval(Container, "DataItem.Rol").ToString()) %>'
in codeBehind:
public bool Show(string value,string value2)
{
if(value == LbluserInvisible.Text)
{
return true;
}
else
{
return false;
}
}
I am using Repeater to display the data.
to get the data from database i am using
<%# DataBinder.Eval(Container.DataItem, "datafield") %>
when i build it... it build successfully but in error list i found
Name 'DataBinder' is not declared.
I'm working at the aspx page, and the following code is inserted in a Repeater control:
<%# ((System.Collections.Generic.List<double>)DataBinder.Eval(Container.DataItem, "BookPrices")).Max() %>
Brings up the following error: 'System.Collections.Generic.List<double>' does not contain a definition for 'Max'
List does have an method of Max(), so I'm possibly messing up my code somehow. What is my problem?
BookPrices is a list<double> object, which I'd like to print it's maximum value.
I am developing web-app in .NET for 5 months (and enjoying it =)) and I am reading 3 books, all of them teachs at least 2 methods for acessing data: ADO.NET and SqlDataSource object.
I am used to work with ADO.NET method because I feel that even if it needs coding by hand, I can separate the SQL routines from the page and I can customize database routines better.
For now I am using DataReader mode because the application and the database is on the same server and there is only 1Gb RAM available so there is no advantage using DataSet on this moment.
Am I thinking this right? There are some things with SqlDataSource that I don't know how to do it well...
For example:
I have a routine that inserts a record on a table then gets the ID of this record using SCOPE_IDENTITY() function of SQL Server, than it uses this ID to insert another record on another table. Because I use a one-to-many relationship on multiple tables...
How can I work this situation using SqlDataSource object, is it even possible?
I have a datalist and would like to add an if statement within the Text part of my label.
Tried the following but it doesn't work
Note: if I do a normal eval Text='<%# Eval("UI_successful_trans")%>' the value returned from the database will be 1 or 0. Depending of which value is returned, I would like to have the text "Win" or "Lose" returned. ( I know that this could easily be done in code behind but I would like to know if it is
possible to to do that inline ?
[Code]....
[Code]....
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
Text='<%# "India" + Eval("firstname") %>'
/> .... is working fine
I tried different arrangement but its not working that is
Text='<%# Eval("firstname","Lastname") %>'
/>
Text='<%# Eval("firstname" + "Lastname") %>'
/>
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>
Line 113: <asp:Label ID="PropertyNameLabel" runat="server" Text='<%# Bind("PropertyName") %>'></asp:Label>
Source File: c:inetpubwwwrootJPM2010UserPropertySearch.aspx Line: 113
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".
Now i need to pull this picture to the Default page page where users are not logged in. If i add an Image Control to the frontpage with ImageUrl='<%#Eval ("PictureThumbURL") %>' it tries to pull out the picture from the folder User which is obvious that it can't since it lacks the User/ in front.
Is it possible to get this picture by manually adding User/ to the ImageUrl='<%#Eval ("PictureThumbURL") %>' and if so, how?
<asp:Label ID="Label13" Runat="Server" Text='<%# (decimal)Eval("CelaDnevnica") > 0 && (int)Eval("CelaDnevnicaStevilo") > 0 ?
Å t. ((double.Parse(Eval("CelaDnevnica").ToString())) / (double.Parse(Eval("CelaDnevnicaStevilo").ToString()))).ToString("0.00"): "" %>' ></asp:Label>
How to include text "Å t." according to a conditional sentence?If a conditional sentence is completed, the printed text "Å t." As well as CelaDnevnica / CelaDnevnicaStevilo
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") %>' >
</asp:Label>
But i want to bind First column at Left hand side and second column from right hand side
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"));
How do I store an Eval in a variable or use the value of the Eval in an if statement?
View 5 RepliesI 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?