C# - Binding DataTable To GridView, But No Rows In GridViewRowCollection Despite GridView Population?
Jun 2, 2010
I've coded a GridView in the markup in a page. I have coded a DataTable in the code-behind that takes data from a collection of custom objects. I then bind that DataTable to the GridView. (Specific problem mentioned a couple code-snippets below.)
Goal: I'm basically trying to find a way to update the data in my GridView (and more importantly my cart Session object) without having to do everything else I've seen online such as utilizing OnRowUpdate, etc. Could someone please tell me why gvCart.Rows is empty and/or how I could accomplish my goal without utilizing OnRowUpdate, etc.? When I execute this code, the GridView gets populated but for some reason I can't access any of its rows in the code-behind.
I have a gridview with empty data template. In this empty data template i have a table(HTML) with 4 columns. When user enters data i want to save this in a datatable temporarily at a button click event.. Again if user wants to add one more rows data that also should be added to the same table where i added previous row data. So now the datatable has 2 rows. Like this he may add any no of rows. What i want is all the rows should be displayed when i bind datatable to gridview..At the click event i am adding 1 row at a time to the datatable
Referring [URL] .... its a good functionality but instead of removing duplicate rows i need to make the cell of the column containing duplicate value blank
I have a set of dataset with different column retrieved from DB. I need to present the datasets in one GridView (or other ListView etc...) without specifying the column_header. It should present automaticly since the GridView is bind to the DataSet.
In additional, I want this GridView to handle multiple rows edit and update the dataset, idealy, show data in textboxs in initially.How could I set the GridView to edit_model without hardcode column_header and textboxs in 'itemtemplate' or filed.
How could I achieve the bulk edit and update, so that I can assign 'mydataview1.table' to the dataset.
I am trying to add many rows in the gridview by clicking a Add button in web form by takeing the value from the textbox then add it to gridview but i couldn't because it accept one row only so how can I let the gridview accept more than one row in every click to the button.
don't work because the columns are created dynamically. I cannot believe there isn't a way to do this short of manually creating each column and filling each row.
let's say we have datatable with "<a>12</a>" as rows.when i try to bind it to gridview programmatically I'm not getting href links like 12 But just a strings like "<a>12</a>"
Code: Dim datatable as new DataTable datatable.Columns.Add("No") dim datarow1 ad DataRow = datatable.newrow() datarow1(0) = "<a>12</a>" datatable.rows.add(datarow1) gridview1.DataSource = datatable gridview1.DataBind()
I am trying to set come columns to invisible after all of the rows are binded but I'm having trouble. I'm hiding columns that have empty data which I save in a session variable. This works fine. Then I tried changing the columns visible property using the ColumnByName routine in the DataBound but that must be the wrong event because I do not think the columns exist yet.
The columns are autogenerated btw.
Where can I set the columns properties after it has binded? Can i do this before the columns are autogenerated the the screen itself?
I am working with GridView/TelerikGrid control. It is having filter option. When I filter the data, I need to copy only filtered rows into Datatable for further processing.
Suppose I am having total 10,000 records. and when I filter on column say Dept="IT", I get 1000 records in grid. So these 1000 records only should get copied into Datatable. So How to achieve this ?
Cwhat can be done over this ? I tried number of properties for grid. But there is no property which will return fileterd data source. Also I am not able to go every page of Datagrid and collect the data. I can get data for first page only. If I need to collect the data by going to every page of gridview, what is the way for this ?
In my continuing effort to build a search page that sends gridview rows with a textbox txtQty <> 0 to a listbox via a datatable, I've written the following:
[Code]....
The page runs, I'm able to input values into the textbox and when I press the Add to Quote button inside my gridview, nothing is populated inside my listbox. Am I correctly binding my datatable to my listobx?
So I've been teaching myself ASP.NET and VB for about 3 weeks now, having trouble with datatables, not sure how to get the rows to line up like I think they should. My code:
[Code]....
Which gives me the data output I want, but the days are adding rows underneath the previous day instead of lining up side-by-side. The idea is that once it's working I'll replace the specific dates with calendar controls. The gridview currently outputs like this:
I want to orderby the list. Today date is on the top and then next date and all dates but when today date is passed then it comes on the end of the list. Is there any formal query in linq or some other code is used to achieve this?
08/01/2015 09/01/2015
but when today is passed then it automatically go to end and next today date is on the top
I have the following problem, i am using gridview to display some table info,, and during RowDataBound event i am binding another DataList control placed on gridview template column,,, the problem is that the DataBind() event of the gridview gives "Index 1 is either negative or above rows count." error.
I debugged alot,, when you disable the DataList binding it works,, but why the 2 not working together i dont know!!.
How to create Rows and Column using Datatable Gridview Itemtemplate with multi header I need to create Datatable Gridview Itemtemplate fixed rows and column such as 7 rows and 7 columns
i hav a gridview ... now i need to add certain number of rows... say 5 rows .... which would b blank .. the rows consist of itemtemplate of textboxes.. here is the grid ...
[Code]....
now i am binding this gridview with certain data say :
[Code]....
now the problem is if the row contains 2 data originally ... then it alwz shows up with only two rows with binded data... but what i want is 2 (databinded rows ) + 5 (empty rows with textbox ) = 7 grid view rows .... now how to do it ... after i hav binded the textbox with data already....with some empty columns corresponding to the above code ?
I have a gridview which is populated from SQL. SQL table fields are ProjectName,Description and TaskDate.Gridview should have 3 columns ; ProjectName,Description and Status
I want to compare the TaskDate to the current system date and if TaskDate < System Date I need to have "Delayed " in the Status column and if TaskDate > System Date I need to have "On Schedule" in the status column.Also how should I defined the blank status column in the gridview?(gridview code without Status is as follows)
I'm looking for the best way (Performance) to do gridview columns formating RunTime /Dynamic depending on the datatable Columns type ,I want to bind the datatable to a gridview and format the Date columns to short date, and currency columns formatted with comma ex 10,000.00 inplace 100000.00 at datatable the column type is double run time (without converting them to String) since I do a filtering and sorting at these columns.
how to join two datatable datas into one datatable to show in one gridview
i.e in 1 datatable i have username and pwd and in another datatable i have that user details. how to show all these in one datatable to get those values display in gridview(asp.net)
I have one big DataTable with X rows. I want to select Y rows from it and bind them to a new ViewList. While doing it, I want to delete these rows from the DataTable (Having X - Y rows).
What is the best and fast way to do it?
I don't know if it is better to create a new DataTable to have the Y and after that bind them to a ViewList or something else?
I'm also looking for example in code how to select/delete rows from DataTable.
I have a requirement in my project, wherein i have to move the records from one datagrid to another datagrid. Basically there will be a source grid and target grid with 2 buttons in betweeen. Data row have to be moved in between the rows based on the button click (buttons are in between the grids). Can we do this on client side using the Javascript, JSON?
I am transferring selected rows from 1st gridview to 2nd gridview and removing rows from second gridview when I deselect row from 1st gridview using Javascript and it is working fine. But when I am deselecting the same row 2nd time it is not removing from 2nd gridview. html and javascript
<head runat="server"> <title></title> <script type="text/javascript" language="javascript"> function AddRow(lnk) { var rw = lnk.parentNode.parentNode;
I have uploaded a excelsheet to datatable and that datatable is bound to gridview.there is a save button present,i want to click the save button and all the gridview data will save in database.but that gridview has no boundfield or templatefield.
