Forms Data Controls :: Looping Through Rows Of A Gridview Via The Datasource?
Mar 2, 2011
I have a Gridview that has Paging enabled, and I need to loop through all the rows of the data. Therefore, I assume I need to loop through the datasource instead of through the Gridview.
I change the datasource of my gridview at various times when running.
How can I get a DataView of the GridView's current DataSource, so that I can loop through it?
Something like:
Dim dv as DataView = DirectCast(GridView1.DataSource, DataView)
except that this comes back as Nothing, probably because a Datasource isn't a dataview.
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May 9, 2010
I am trying to add the checked rows into the database by looping through but im getting this error:
Object reference not set to an instance of an object.
Description:
An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
[Code]....
Heres my add click event:
[Code]....
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Jul 14, 2010
I am having a problem with this code, i had a post on this however this code is slightly different to that so i thought i would post a spearate thread.
Anyway, what i am trying to do is display job vacancies by the result of a DropDownList value. Now each job name has a description. The problem i am having is i need to display the results in this logic:
Job nameJob descriptionJob location. But what is happening is the job description (body) is repeating the more vacancies there are. This is the page:
http://kidsunlimited.co.uk/vacancies_test_two.aspx
If you select Deputy Nursery Manager from the DropDown and hit the Search button you will see the results. After listing the first two locations the description is repeated and then the 3rd location is shown after this. This is my code:
[Code]....
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Dec 16, 2010
I want to loop through gridviewrowcollection using LINQ but cannot go do it..nstead of doing:
foreach (GridViewRow gd in gdNarratives.Rows)
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Jan 29, 2011
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]....
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[Code]....
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Oct 7, 2010
I have two gridview. The first gridview with checkbox and if i check the checkbox in first grid that particular row will be binded to second grid. In second grid i have a textbox and dropdown. Have enabled pagination in both grids. When i check the checkbox in first grid i loop through all records in second grid to bind the previous values. Problem is since i have enabled pagination gridview row count only retuns current page row count. How to loop through all rows?.
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Feb 12, 2010
I need to have maybe 5 threads running which all use the same DataSet and need to loop through all the rows retrieved but each row must be processed by one thread only (e.g. I don't want row 1 to be processed by thread 1 and thread 3).
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Jan 10, 2010
I have a gridview that serves as a confirmation for user input in a previous form from a previous page. The grid is databound to a temporary table where I store the user's initial selections. The user can confirm what they had submitted, (which may be more than one row of information, up to three classes) or go back and change. When they hit the confirm button, I loop through the gridview and enter a row in a permanent database for each row in the gridview. This works great.
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The first page is like this:
the user fills out his info once in text boxes
name ____
address____
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class one dropdown ...
class two dropdown....
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Gridview should display only classes selected, one row for each, and not
name address class selected
name address class selected
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name address class selected
name address class selected
one row for each in permanant database
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Oct 28, 2010
I have the following function that translates the header row in a gridview:
[Code]....
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Using con
Using sda As New SqlDataAdapter()
Try
cmd.Connection = con
Catch ex As Exception
Response.Write("Error" & ex.Message)
[code]...
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Jul 7, 2010
How to loop through the table get only paticular records based on the particular value and store it in a datatable.
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I came across a situation where a user selects no of rows from dropdown , depending upon the user input, automatically that no of editable rows should appear to input data...(maximum 8 rows only)
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May 18, 2010
I am curious, if it's better to iterate through a set of records using cursor or using a WHILE (SELECT ..) ? I have read that cursors can be expensive, so may be WHILE (SELECT..) is a better approach.But I am not sure ?
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[code]...
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Mar 4, 2011
I'm binding a gridview from a webservice with 30 columns and 10 rows, I need to print the same in a PORTRAIT, for that i decided to display columns as rows and
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Jan 14, 2010
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May 9, 2010
I have a database table as follows:
[Code]....
This table receives data from my web application via a stored procedure, snippet pasted below:
[Code]....
In my quote.aspx page, I have a wizard control that collects numerous data points. In one of the wizard steps, I have 20 textbox controls for PartNumbers and 20 textbox controls for respective Quantity.
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Dec 10, 2010
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.
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May 31, 2010
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).
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May 11, 2010
I have a ListView which has Product Code,Desc, ColorCode, Size and Quantity as the columns as well as a checkbox
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Jun 17, 2010
[Code]....
In above query I want to have top 10 rows as well as count of all rows.
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May 22, 2010
my datatble
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Mar 31, 2011
I need to loop through a list of check boxes when the user clicks an export button.
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Here is the code.
[Code]....
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May 11, 2010
I have 2gridview. And I want to Every rows sum to another gridview like this.
1.Gridview
ID Ad KM M
1 a 12 5
1 a 13 4
2 b 11 1
2 b 10 2
2.Gridview
Id Ad TotalKm TotalMeter
1 A 25 6
2 B 21 3
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Dec 5, 2010
I know that the datagrid control loops through a database table from the first row to the last, but I want it to loop from the last row to the first. How can I do that? Also I wanted to know how could I drop some rows according to my needs while looping from end to start, so that the datagrid only displays those rows that I need to display?
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Mar 29, 2011
how can i delete the whole rows of gridview using code behind c sharp like
Col1 Col2 Col3
a 1 5
a 2 6
a 3 7
a 4 8
and I want to delete the whole rows in the gridview so that it becomes
Col1 Col2 Col3
a 4 8
only last duplicate row left and all the rest is deleted (rows are deleted from all the columns of gridview)
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