Forms Data Controls :: How To Have More Than One Field With (databinder.eval (e.row.dataitem,"field"))

Mar 27, 2010

I have the code below that works fine, but I need to have more than one field using the same command.

[Code]....

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How To Bind Single Field Of Grid With Multiple Values Using DataBinder.Eval

Jun 29, 2010

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())%>

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How To Split Comma Seperate DataItem Field In GridView Eval

Mar 11, 2011

here my code-

<asp:TemplateField HeaderText="HIGH RISK (10-12)" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:Label ID="lblHighrisk" runat="server" Text='<%# Eval("URANGE").ToString().Split('-')[0] %>' />
</ItemTemplate>
</asp:TemplateField>

but that is giving compile time error 'Server tag is not well formed'

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Forms Data Controls :: DataBinder.Eval(Container.DataItem, "Type") == "CheckBox" FALSE?

May 27, 2010

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?

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Forms Data Controls :: DataBinder.Eval Versus DataBinder.GetPropertyValue

Oct 4, 2010

Can anyone explain me that what is the diff between DataBinder.Eval Vs DataBinder.GetPropertyValue?

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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]....

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Forms Data Controls :: DataBinder.Eval And Null Values?

Aug 16, 2010

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?

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Can A DataBinder.Eval Be Nested Within Another DataBinder.Eval

Jul 16, 2010

Can 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?

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Data Controls :: Change Date Format With DataBinder Eval Function

Oct 21, 2015

<asp:Label ID="lbl_date" runat="server" Text='<%# Convert.ToDateTime(Eval("dt_pub")).ToString("dd/MM/yyyy") %>'
 
check for systax error 

It show me server tag not well formed error

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C# - If Statement Inside A ListView With Eval() Or DataBinder.Eval()?

Nov 11, 2010

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.

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Forms Data Controls :: Repeater ItemTemplate - If Eval(field)=0 Then HTML Else HTML

Feb 20, 2010

The following seems reasonable, but it returns an error:

<asp:Repeater ID="RepeaterF" runat="server" DataSourceID="DSF" >
<ItemTemplate>
<%
If Eval("Item_Batch") = 0 Then
%><tr><td></td><td colspan="2"></td><td></td></tr><%
Else %>........

Error: "Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control."

I am finding it difficult to accept that the whole Repeater approach has any benefits over just creating a loop in code, iterating through a recordset, and building a html table into a variable, then dumping it to the page. This repeater is spawning pages of code and objects, and surely this is all using up server resources.

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Forms Data Controls :: How To Validate The Value In EVAL("field")

May 20, 2010

IF statement which I use to validate the value in EVAL("field").

Here is my code in .ASPX

[code]....

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Forms Data Controls :: How To Display A Checked Checkbox When Field Value=1 And Unchecked When Field Value=0

Apr 22, 2010

I am using a GridView Control to display multiple fileds with 0's and 1's.

I am using template fields where CheckBoxes are used.

Where exactly and how do I apply the Logic to get a checked CheckBox when field Value=1 and unchecked CheckBox when field Value=2 .Also some times to be able to write a YES where fieldValue=1 or NO where filedValue=0

Do I apply this logic using asp or C#? How?

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Forms Data Controls :: Disable/Invisible Field In Gridview Based On Another Field?

Jul 9, 2010

I have 2 fields in my gridview one called ScriptType the other BagNo, when a user click the edit button, I would like the BagNo filed to be disabled if the ScriptType field is = "TTA" and enabled otherwise. How can I do this?..something along these lines see below..I am using VB..

[code]...

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Forms Data Controls :: A Required Input Field DropDownList If Old Records Have Null In This Field?

Apr 1, 2011

I have a DetailsView on the page and I have made one of the fields a TemplateField. In the EditItemTemplate and InsertItemTemplate I have a DropdownList that is databound to a table in my Sql Server database. I wanted to add an initial value to the DropdownList
namely "- select -" .

I set the AppendDataBoundItems property to true and added the initial value as a ListItem.Markup of the DropdownList

<asp:DropDownList ID="DropDownList_HP" runat="server"

AppendDataBoundItems="True" DataSourceID="SqlDataSource_HP" [code]...

This works fine for new input. The problem is however that the database already has records that were entered through a Windows Application and many of these records has a null value in this field and exceptions are thrown when I tried to open these records
and the system tried to set the SelectedValue of the DropdownList.After some more searching I found this help

http://msdn.microsoft.com/en-us/library/ms366709.aspx

So I changed the ListItem in the DropDownList markup to the following:

<asp:DropDownList ID="DropDownList_RefHospDV4" runat="server"

AppendDataBoundItems="True" DataSourceID="SqlDataSource_RefHosp" [code]...

This now solved the problem of opening a record where the value is null in the database, BUT now the RequiredFieldValidator is not validating anymore to make sure that a databound item is selected for this field and not the initial value "- select -". So basically now it is not checking anymore to see if valid input has been entered for the DropDownList and it accepts "- select -" thus it acts as if the field is not a required field anymore.

In short what is required is that I want to make sure that the user enters a valid selection in the DropDownList, but it must also cater for old records that do not have this field entered yet so that those old records can be opened in the DetailsView .Opening Old records (with null in that field):When these old records are opened in the DetailsView the DropDownlist should show "- select -" when the value in the database is null.

Saving records (old or new records):When saving the record in Insert mode or Update mode the RequiredFieldValidator should show that a valid input is not selected if the DropDownList is still on "- select -".

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Forms Data Controls :: How To Use A Field Value In Another Field In Gridview

Dec 19, 2010

I have a grid view, and I add new column as a hyper link field, I want the navigationURL for this field to be Pageexample.aspx?ID=other field value like this

[code]...

is that possible ?

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Web Forms :: Eval Not Working With Hidden Field?

Mar 25, 2010

I have some hidden fields to which i want to assign values through properties in .aspx.cs file.How can i do so?

The following gives the error: Compiler Error Message: CS0103: The name 'Business' does not exist in the current context

[Code]....

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How To Bind/eval A Field Only For Inserting/writing

Aug 27, 2010

I got the difference between Bind and EVal from here. Bind will do both way reading and writing. And Eval do only reading. So any function only for writing?

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Css - Using DataBinder.Eval() In Style Attribute?

Aug 8, 2010

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.

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C# - Binding To A List <string> Using DataBinder.Eval?

Sep 3, 2010

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?

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Forms Data Controls :: Binding The Field Of One Table With The Field Of An Other Table?

Jan 21, 2010

I have a table named RECIPE which is linked to an other table name RECIPE_STATUS

In RECIPE table I have a field named Status_Id which contains the name of the Status which is fetch from the RECIPE_STATUS table based on this ID.

The RECIPE table sample information are as follow :

ID Name Status_Id
====================
1 Test1 0
2 Test2 1
3 Test3 2

The RECIPE_STATUS entries are as follow:

ID Name
========
0 Locked
1 Running
2 Free

From an ASP.net page I would like that my user is capable of changing the RECIPE_STATUS from a given recipe. For that I have a DataGrid which is bind to the RECIPE table.

But then what I would like is that the STATUS shown to my user to be the name Locked,Running or free depedning on the Id

How can I bound in my Datagrid the Recipe.Status to be bind to RECIPE_STATUS.Id ?

IN addition to that, If my user change the status for a given recipe, it should be properly save.

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Forms Data Controls :: Hyperlink From A Gridview Field To A Field In Another Gridview?

Jun 11, 2010

I want to hyperlink from a field in one gridview to a field in another gridview based on id. I've tried many ways but haven't seen success.

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Data Controls :: How To Make Bound Field And Template Field Read-Only In Edit Item Template Of GridView

Jul 31, 2013

i am implementing a update query module.i am displaying all fields from a table for a term searched. well now i am implementing update option for the record which are displayed, i have like 70 columns in my table, and i want to know how to restrict some selected fields to be only read only while the form can be updated ?Like if user select to update a record then some selected field such as "Timestamp, UID etc some selected fields" remains READ ONLY !

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DataSource Controls :: Ignore Empty Field Because Always Join The Field And Separate By Space

Mar 3, 2010

I wanna join all the field as a new col.

but how can i ignore the empty field because i always join the field and separate by space like the following.

select (field_1+' '+field_2+' '+field_3) as new_col from TABLEA

but if the field is empty, then there is the double space

how can i ensure all the space is one space only.

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DataSource Controls :: Set Field As DBNull.Value If Field Is Blank?

Apr 7, 2010

I have a 20 to 30 fields on a form. Most of them are optional. However, the users can fill out what they want. If a user dosen't fill in a field when data is sent to the database it's sent as blank, instead of NULL. Is there a way I can generically say "for all textboxes if Equals("") then DBNull.Value". Without going through each and every textbox?

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