Forms Data Controls :: What Is The Difference Between Dataview And Datarowview
Mar 15, 2010What is the difference between dataview and datarowview?
What is the use of datarowview?
Similar Messages:
Forms Data Controls :: ListView - ItemDataBound Event - Casting To DataRowView?
Oct 25, 2010System.InvalidCastException was unhandled by user code
View 4 RepliesForms Data Controls :: 'System.Data.DataRowView' Does Not Contain A Property With The Name
Apr 2, 2010DataBinding: 'System.Data.DataRowView' does not contain a property with the name '@CACODE'.
Tried some ways.. The code:
[Code]....
DataSource Controls :: System.Data.DataRowView In List Box (instead Of Data)
Feb 17, 2011On my .aspx code I have
<asp:ListBox ID="LBcategories" runat="server"
DataSourceID="SQLCategories">
</asp:ListBox>
When I was creating a datasource for the List box - it showed the correct data,but when I tested it on the Web - I see a listbox with 3 lines of value:"System.Data.DataRowView". After manually deleting a row from the database - I see only 2 lines. After deleting all rows from the table - the listbox is empty.
So why I don't see the table values, but the string "System.Data.DataRowView"?
Forms Data Controls :: Sorting In Dataview?
Aug 10, 2010I want to sort the string which is in the format given below15% Test;15% Sear;40% Santhosh;30% Jeeson;
The output that I am expecting is
40% Santhosh;30% Jeeson;15% Sear;15% Test;
I wrote the following code but it does not work .
string str = "15% Test;15% Sear;40% Santhosh;30% Jeeson;";
Console.WriteLine(str);
DataTable dt = new DataTable("SortBenchMark");
DataRow dr;
dt.Columns.Add("Weightings", typeof(int));
dt.Columns.Add("BenchMark", typeof(string));
string weightings = string.Empty;
string BenchMarkName = string.Empty;
foreach (object o in str.Split(';'))
{
if(o.ToString().Length > 0)
{
dr = dt.NewRow();
dr["Weightings"] = Convert.ToInt32((o.ToString().Split('%'))[0].ToString().Trim());
dr["BenchMark"] = (o.ToString().Split('%'))[1].ToString().Trim();
dt.Rows.Add(dr);
}
}
dt.AcceptChanges();
DataView dataview = new DataView(dt);
dataview.Sort = "Weightings DESC,BenchMark Asc";
string final = string.Empty;
foreach (DataRow drow in dataview.Table.Rows)
{
final += drow["Weightings"].ToString().Trim() + "% " + drow["BenchMark"].ToString().Trim() + ";";
}
Console.WriteLine(final);
Console.ReadLine();
Forms Data Controls :: Can A Dataview Be Declared As Public
Mar 29, 2010Can a dataview be declared as public?
Dim dvEditTreatmentType As DataView = New DataView(dsTreatmentEndDate.Tables(0), "IsNull(DialysisEndDate, '') = ''", "", DataViewRowState.CurrentRows)
can this be declared as public Dataview? is there a way to do it?
Forms Data Controls :: Specify Which Columns Are In A DataView From A DataTable?
Mar 24, 2010HOW TO specify which columns are in a DataView from a DataTable. I want to create a DataView, that only has the columns from a DataTable that I choose, and in the order I want.
Example:
// DataTable_MyTable ~~ Column #0 is for ID. I do not want my view to get this column.
// DataTable_MyTable ~~ Column #1 is for TYPE. I want this column to come in 2nd place in my view.
// DataTable_MyTable ~~ Column #2 is for NAME. I want this column to com in 1st place in my view.
DataView DataView_MyView = new DataView(DataTable_MyTable ~~ some how only get the columns I want, and in the order I want ~~);
// DataView_MyView now has only 2 columns.
// DataView_MyView ~~ Column #0 is NAME.
// DataView_MyView ~~ Column #1 is TYPE.
Forms Data Controls :: Exclude A Row From Dataview Sort?
Mar 5, 2010I have a datatable which contains the summery row as well. I just assign the datasource property of a gridview and call databind method to fill and display the records.
Now, when I applied sorting through dataview to the gridview, the sorting happens along with the summery row, which is a normal behavior. As a result the "Total" - column took place inside the data some times. I want to prevent this.
The best way out for that can be done by creating the summery row at grid view row databound. But unfortunately I could not change the datatable as per this requirement.
Can the dataview sorting exclude the last row of the datatable through any process?..
Forms Data Controls :: Determining A Row And Column In A Dataview?
Aug 9, 2010I know how to do this in a datatable but I would just like to learn how to do it in a dataview.
I have a dataview which is used to populate a gridview. It has the following column
userid Location
123 New York
124 Chicago
125 London
Now, I would like to know how to determine the 124 row and highlight it to a blue in a dataview used to populate a gridview. kindly note, i can do this in a datatable but not a dataview. I would like to learn how to do it in a dataview.
Forms Data Controls :: How To Convert DataView To DataSet
Jul 27, 2010converting a DataView to a DataSet?
I have a DataSet 'programs'. I want to sort if before passing it to a user control where it will be rendered.
I created the DataView and sorted it successfully like so:
[Code]....
The line of code to pass my old (unsorted) dataset to the UC is like this:
[Code]....
What is the syntax for passing the dvPrograms to the UC in a similar manner?
Forms Data Controls :: Dataview Control Not Appearing?
Jan 10, 2010I have the following code in place:
[Code]....
and the following stored procedure:
[Code]....
The Dataview control is not appearing when the page is loaded. Has anyone any ideas ?
Forms Data Controls :: Convert DataView Line From VB To C#?
Jan 12, 2010I have tried the online converters, and none of them that I have tried will accurately convert this. It still tries to add a .Item property to the dataview and that does not exist in c#. I know this is simple...
dv.Item(e.Item.ItemIndex).Row.Item(1)
Forms Data Controls :: Export To Excel Using Dataview?
Dec 1, 2010I'm trying to export a filtered dataview to excel. The code to export works just fine but it exports all the records, not just the ones I filtered on. For example, I have three dropdowns and the dataview seems to work just fine filtering on the dropdown parameters because it shows up correctly in my datagrid on my screen.
This line of code is where I am confused.
[Code]....
Forms Data Controls :: Populate FormView From A DataView?
Feb 23, 2010Im trying to populate my formview from a dataview in the codebehind and the order in which things are happening is causing it to fail.my formview itemtemplate is setup with some eval("fields") which is initially not populated (nothing bound to it) and the page loads ok. i think click on my graph which generates a query and populates a dataview.i then assign that dataview to the formview and run the bind.what happens when i actually run the app is that it says no data is bound to it.i set the debugged to stop at the point where my DV is assigned to my FV and the FV shows a data item count of 1 (as expected) if i keep stepping it puts me in to the eval statements on the aspx page says the data isnt bound.
the error i get is
Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.
[Code]....
Forms Data Controls :: Changing The Date Format In A Dataview?
Oct 27, 2010I am using a dataview to read a certain record from a database and then adding these values to different elements on a form (label, textbox) ..
One of the fields is a date/time and i only want to display the date without the time..
code:
{on page load}
Dim dv As System.Data.DataView = CType(DEDS.Select(DataSourceSelectArguments.Empty), System.Data.DataView)
lbl_startdate.Text = dv.Table.Rows(0).Item("'<%# Eval("evt_startdate","{0:d}")%>'").ToString()
' DEDS is my SqlDatasource ..
'evt_startdate is the date field coming from the DEDS datasource
.. It's not working .. I'm not sure how i should alter the date format ..
Forms Data Controls :: Editing Populated Textbox From A Dataview?
Sep 28, 2010I have a dataview running a stored procedure that's populating a textbox. I then want to edit (or not) that text and insert it using another query. However, whenever I populate the text box, it will always insert the original text. If i don't populate it, it will insert whatever text I input.
[Code]....
Forms Data Controls :: Sort DataView Ascending With Nulls Last?
Aug 16, 2010how to sort a datatable (dataview) so that the second column is ascending but nulls are last.
I'm trying to do the following Date1 ASC, DATE2 ASC (but if DATE2 is null it is last in this Date1 group)
Note: Date1 can never be null so a Date2 that is null should still be grouped in with its Date1.
Forms Data Controls :: Change The Visibility Of A Field In Dataview?
Jul 17, 2010I have developed my application using Visual Web Developer 2008 express with Visual Basic code.
If I am working with 2 textboxs on a form, and I set the "Autopostback" to "true" for the first texbox then on the "changed" event, I can just add code to set the visibility to "true or "false" for the second textbox - it works fine. However, I do not seem to be able to figure out how to do the same thing when I am using a Dataview.
I have a table called "Customer" that contains 4 fields "CustomerName", "BasePrice", "LevelOfActivity", and "Discount".
My user enters information into this table using a Dataview form that displays the 4 fields.
When the user enters the value "L" in the field "LevelOfActivity", I would like to then set the visibility of the field "Discount" to "false" - (I want to hide the field as this customer should not get a discount). If the user enters the value "H" in the field "LevelOfActivity", I would like to then set the visibility of the field "Discount" to "true" - (I want to show the field so the user can enter the "Discount").
Forms Data Controls :: Bind Gridview Using Dataview In The Code Behind?
Jan 26, 2010How to bind gridview using dataview in the code behind?
View 1 RepliesForms Data Controls :: Extracting Price From DataView Or From The Database?
May 11, 2010Currently I am developing an ecommerce web site where
1. I choose the Product from a GridView (by pressing Select)
2. This product gets added to a DataView
The problem arises because I have a quantity textbox and wish to multiply the price by the quantity textbox.
How can I extract the price from the gridview to multiply it ? (and then subsequently display it in a label)
Forms Data Controls :: Access Gridview's Sorted Dataview?
Jul 16, 2010ASP.NET 3.5
I've got a Gridview bound to an objectdatasource. Sorting is enabled in gridview, but objectdatasource isn't doing any sorting. I can pick up the unsorted datatable from the Selected event of the objectdatasource, but I really want the sorted version. Is there any event on the gridview where I can access the sorted dataview it must be using internally?
Why am I asking? We're using paging as well (i.e. truncated data in gridview) and I want to loop through the full sorted dataview to find the primary key value to set selectedindex.
DataSource Controls :: How To Get Datarowview Property
Apr 16, 2010I'm trying to figure out how to find whether a column exists in a dataset, and if not, remove certain controls on the page (otherwise it will error out with: DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'my column')
So...
I have a gridview that has xml data loaded dynamically by drop down list selections.
The xml elements vary depending on the file.
One XML file may look like this:
[Code]....
Forms Data Controls :: Dataview - How To Use Each Field To Populate Other Controls
Apr 30, 2010I have a Dataview that has several fields. I want to use each field to populate other controls. How do I access each particular field?
View 2 RepliesForms Data Controls :: How To Select Rows From Dataview Using Filter In The Index
Mar 9, 2010I need to retrieve data from DataView/DataTable. I need to retrieve the top4 records, then, 5th - 10th recoed.
This is how I do this, but I am looking for a clean code, doing it correctly:
[Code]....
Forms Data Controls :: Can Specify A Fixed Number Of Rows By Index To Add To A Dataview
Feb 20, 2010I have a table that contains about 8000 records and I need to be able to select any given sequence of 250 subsequent rows by a specific row index of teh table...
how I can go about that easily using a dataview without building a secondary table and just pushing the records I need into it?