Datarow Field Property To Access Column Value?

Dec 20, 2008

I have a datarow and I want to access the values of each column by its name

I THOUGHT I could simply access the value via the Field property

dim dr as datarow
dim columnvalue as string = dr.field("columname")

but apparently that is not can I access the column value?

View 1 Replies

Similar Messages:

VS 2008 Access A Cell Value Of A Column In Datarow?

Jun 28, 2009

I want to access a cell value of a column in datarow. As long as teh column name is a single word, I can do it as in the following.



View 2 Replies

Values Appearing As Null - How To Access The Column's Text Property

Dec 25, 2008

I have the following GridView - this is the columns section:


And within my code behind, I'm trying to access the column's text property, I'm trying to debug it, so my code looks something like this:


Only Cells[0] returns me the text, the rest gets me "".

View 7 Replies

DataSource Controls :: Return DataRow's Column Name?

Nov 27, 2007

how to return DataRow's column name? Like:

Dim row as DataRow = dt.Table(0).Row(0)
MsgBox "Column: " & ColumnName & " Value: " & row("ColumnName")

Where ColumnName is the table's column in the database.

View 6 Replies

DataSource Controls :: How To Create A Comma-delimited Column For Each Datarow (SQL)?

Feb 3, 2010


View 8 Replies

DataSource Controls :: Value Of Type 'System.Data.DataRow' Cannot Be Converted To 'dataRow'

Mar 28, 2010

I have taken a DataTable control and have added colums to it. Now i want to add rows to that DataTable but when i am trying to create a DataRow of DataTable, an error is generated, showing "Value of type 'System.Data.DataRow' cannot be converted to 'dataRow'".

exact coding that i have written is as follows:


So, where i am getting wrong?

View 2 Replies

Forms Data Controls :: Access Footer Template Control In DataControlRowType.DataRow?

Apr 8, 2010

I have one grid which have 5 columns 1 for subject,2,3,4 for marks which have textbox to insert obtained marks,and last column have one lable to display total of (2+3+4),now i want total value on textbox event,when user enter any value to any column of textbox i need to display total of all three columns in total column. that things i did using javascript now i have one grand total text box in footer template according to sum of total i need to display grand how can i get that footer template textbox in rowtype of DataControlRowType.DataRow.JAVASCRIPT :

<script language="javascript" type="text/javascript">
function sum(m1, m2, m3, txtTotal,txtFTotal) {
var mark1 = document.getElementById(m1).value;


View 3 Replies

SQL Reporting :: How To Sort Column Field And Add TOTAL Column In VS 2008

Dec 9, 2010

I am in VS2008 and in ReporViewer's Design page.

I have "Fruits" as column fields and Months as row fields and Sales as data field.

I have these columns:-

Apple, Orange, Pear.

However, I want it be displayed as

Orange, Pear, apple.

Any work around ?

Also I need a 4th column adding the Apple, Orange and Peer numbers total. How to do it in design view in VS2008 ?

View 4 Replies

Error - Property Access Must Assign To The Property Or Use Its Value

Sep 10, 2010

I have a masterpage that contains all the javascript and inside the content control, there is a link that calls a javascript function and I want to pass the id once it's rendered differently by the server.

<asp:TextBox ID="txtstart" runat="server" Width="20%"></asp:TextBox>
<a title="Pick Date from Calendar" onclick="calendarPicker('<% txtstart.ClientId %>');" href="javascript:void(0);">

However, I keep getting this error:

Property access must assign to the property or use its value.

How would I be able to accomplish this?

View 1 Replies

ADO.NET :: Property Access Must Assign To The Property Or Use Its Value?

Apr 1, 2011

Here's the code below:


The application that I am currently modifying is using an xsd file and the stored procedure has parameters which are passed.

View 2 Replies

Forms Data Controls :: Gridview Column Change / Replace A Column Data Field Value to 'Not Applicable'?

Jan 6, 2011

I have a gridview which is binded to a Sqldatasource. I would like to replace a column data field value to 'Not Applicable' if that column has got a value of 2 in database.

View 2 Replies

Access :: Data Type Mismatch While Inserting Into A Number Field In An Access Database Using A Parameterized Query?

Jun 9, 2010

I have a data type mismatch while inserting into a number field in an access database using a parameterized query.I think this should be pretty simple but I am still learning a lot.


I have some commented out as I am working one field at a time. The working fields are textboxes and the non working ones are dropdown lists. But I think it may be the field that the list is drawing from? Not sure.

View 2 Replies

Access :: Retrieve A Single Column From A Table In A Database(ms Access)

May 26, 2010

I want to retrieve a single column from a table in a database(ms access) and then the value retrieved has to be converted to a string!!

View 4 Replies

Access :: If Field Null, Then Next Field?

Jan 6, 2010

In Microsoft Access Database Form, I have a series of five fields. I would like to set up a field that is equal to the first field unless that field is null or 0. Then I want the field to be equal to the second field unless that field is null or 0, continuing the same way through the five fields. Being a newb, I have no idea how.

View 1 Replies

MVC :: Get Property / Field Value Inside Attribute

Dec 22, 2010

I want to disallow entering html tags inside specific textFields using custom attribute HtmlRemove, but I don't know how can I acces property/Field value? Model:


My custom Attribute


View 8 Replies

How To Bind DetailsView Field To Function Instead Of Property

Aug 5, 2010

Is it possible to display the result of a function instead of the value of a property in a DetailsView Field?

<asp:Label ID="m_LabelPlantCode" runat="server" Text='<%# Bind("PlantCode") %>'></asp:Label>
<asp:Label ID="m_LabelPlantCode" runat="server" Text='<%# Bind("PlantCode(true)") %>'></asp:Label>

View 2 Replies

SQL Reporting :: How To Refer To A Field In A Property Expression

Nov 19, 2007

On a report I want a textbox's background colour to change depending on whether the person is male or female. I put an expression into the textbox's BackgroundColor property: -

=IFF(fields!indisex.value="M", "AliceBlue", "LavenderBlush")

but when I previewed the report an error was produced: -

"The BackgroundColor expression for the textbox 'textbox6' refers to the field 'indisex'. Report item expressions can only refer to fields within the current data set scope or, if inside an aggregate, the specified data set scope."

Yet the textbox's value property is set to fields!indisex.value, and prints correctly when the BackgroundColor expression is removed. So how can it be out of scope in the BackgroundColor? What do I have to do to use the value in the BackgroundColor property?

View 22 Replies

MVC :: NullReferenceException When Field In Error Is Not A Property Of Model

Nov 15, 2009

I have an MVC application that is validating data and add errors to ModelState if it fails. I have a bunch of checkbox/drop-down pairs on a view where the checkbox indicates whether an item will be displayed on a public web site and, if that's unchecked, the drop-down indicates the reason it won't be displayed. I'm validating like this:


I'm then trying to display that error like so:


Now, if I don't add the error to ModelState all is well. If I add the error to ModelState with a different name all is well. Using the code above though, a NullReferenceException is thrown when Html.DropDown is called, seemingly when it's trying to determine whether to use a style that indicates an error. Here's the call stack:


I've got Framework debugging on and I've traced execution as far as the GetModelStateValue method but I can't really see what's happening in there because it says that nothing can be evaluated because the code is optimised.............

View 2 Replies

MVC :: Binding Each Gridview Column With A Property?

Mar 16, 2011

Is their any way I can bind each column of the grid seperatly with each property? It is possible to do that in web form, but i am not sure about MVC grids.

View 2 Replies

How To Make NHibernate Serialize A Given Property To A Binary Field

Sep 14, 2010

I have a simple ASP.NET MVC web application that uses NHibernate with FluentNHibernate's auto mapping feature for its data access. I have encountered a scenario in which I would like NHibernate to persist some classes as binary data.

public class User
// This field will be persisted
public virtual byte[] PortraitData { get; set; }
// This method will get me what I'm actually interested in
public virtual Image GetPortrait()
return SerializationHelper.Deserialize<Image>(PortraitData);

(I leave the implementation of the SerializationHelper class to the reader's imagination. It doesn't do anything complicated, just serializes and deserializes data into byte arrays and back.)

View 2 Replies

C# - Bind Non-property To Datagrid Column DataField?

Mar 31, 2011

Let's say I have a DataGrid that looks something like:

<asp:DataGrid ID="SomeDataGrid"
<asp:BoundColumn HeaderText="A Header" SortExpression="Sort" DataField="Data"></asp:BoundColumn>

In this Grid, I set the datasource to some collection that contains a public property called "Data" and do a databind(). Every works as expected.Now let's say I want to set the DataField attribute of the column to a public member, or a property, or some other thing I've computed. What is the easiest way to go about this without creating intermediate objects or adding public properties to the objects in the collection?So what I want to do is something like:

<asp:BoundColumn HeaderText="A Header" SortExpression="Sort" DataField="someMethod()"></asp:BoundColumn

View 1 Replies

Field Or Property With Name IXC_Vendor_Circuit_ID Was Not Found On Selected Data Source?

May 3, 2010

I am displaying a table into a gridview for which I've a SQL query written which uses IF-ELSE condition. In one of the conditions, if the condition stands TRUE then one of the coloms should be eliminated from the table. But I constantly get an error:"A field or property with the name 'IXC_Vendor_Circuit_ID' was not found on the selected data source."

View 6 Replies

Web Forms :: A Field Or Property With The Name 'usergroupname1' Was Not Found On The Selected Data Source?

Oct 1, 2010


View 1 Replies

Forms Data Controls :: Field Or Property Not Found On Selected Source

Jan 11, 2010

I have created a gridview at runtime. its working fine when i load the grid first time. after when i am selecting next value from ddl to load grid according to that option(selecting from dropdown list and coresponding values showing in grid) showing error that "A field or property with the name 'datafield name' was not found on the selected data source." might be i am getting this error becuze the privious value is not being cleared" can anybody help me with this problem.

View 2 Replies

Forms Data Controls :: Visible Property On DataGridView Bound Field?

Nov 4, 2009


I have a field in my code as not visible but because of that I can't do this:



So the problem is with the folderid value. When I make the field visible it works. Is there a way around this?

View 1 Replies

DataSource Controls :: A Field Or Property With The Name 'Object' Was Not Found On The Selected Data Source?

Dec 17, 2009

i've found this error : "A field or property with the name 'Object' was not found on the selected data source.", why this happens?


View 2 Replies

Forms Data Controls :: Getting Error While Binding / A Field Or Property With The Name 'CAND_NAME' Was Not Found

Feb 11, 2010

I want to bind a datarow array to datagrid, if i do so i am getting an exception saying that item was not found on selected datasource.

datatab = CType(Cache("AlldataAppli"), DataTable)
Dim rws() As DataRow
rws = datatab.Select("uid=" & UID.Text)
dg.DataSource = rws

While binding the data i am getting the following exception.

An exception of type 'System.Web.HttpException' occurred in System.Web.dll but was not handled in user code

Additional information: A field or property with the name 'CAND_NAME' was not found on the selected data source.

This datarow array contains cand_name, i am able to retrieve it through the following line of code.


View 3 Replies

CS0120 Error - An Object Reference Is Required For The Non-static Field, Method, Or Property?

Mar 24, 2010

I am getting a CS0120 error when trying turn a button visible after checking some variables. In plain english, If AmmohelpSession.UserActions contains AmmohelpEnums.UserAction.ArticleEdit then turn the Edit button visible. Here is my comparison:


In the code behind for AmmohelpSession, a public class AmmohelpSession which contains a private variable: private HashSet<UserAction> _userActions; has been stated. In that same file, there is a public function for the UserActions that does a get or set method.In the code behind for AmmohelpEnums, we are setting byte variables to specific actions. Mine would be something like:


Where is my error coming from ?????

View 1 Replies

DataSource Controls :: Property Data Type In The C# Entity For The FileStream Column?

Jul 27, 2009

I am creating a table in SQL 2008 that contains a column of type FileStream so I can save files in it.

Can Entity Framework handle this?

What will be the property data type in the C# entity for the FileStream column?

View 2 Replies

WebMatrix :: Calculated Field (column) In WebGrid

Dec 15, 2010

Is there a way to have a calculated column (field) in a webGrid in webMatrix?

View 4 Replies

Copyrights 2005-15, All rights reserved