What's the best way to do this? After I load my DataTable from SQL, I'm looping through it with a For Each...Next loop performing some calculation for each DataRow. If the values don't fall within a certain threshold, I want to remove that Row. However I can't just do a MyDataTable.Remove(MyRow) or it breaks my For Each loop.
View 6 RepliesI am trying to looping thru a data table and update a column on each row. However after updating I am getting both before and after update records in the data table. Assuming there is only one column called "Qty" withing the data table and I want to double the value in the column. I use the following to perform updating but not getting my expected result.
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I have a DataTable available with me which contains thousands of rows. There is a column called EmpID which is containing '0' for some of the rows. I want to remove them from my current DataTable and want to create a new correct DataTable. I cannot go row by row checking it since it contains huge amount of data.
View 6 RepliesI have a HTML table with 5 rows and 2 columns.I have set the background color to gray, but I how do you eliminate the grid lines as they are displaying as white? I wish to remove/hide the grid lines and table border so that only the gray background color Gray shows.
View 4 RepliesI pivoted my gridview with this code. But This code is not mine. Just tested and worked. But i dont know how can i add remove/add buttons to all columns.
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How to loop through the table get only paticular records based on the particular value and store it in a datatable.
for example, i've a table with two columns, Store name and Store number. For a single store name it can have mulitple store number like
[store name ] [store number]
a1 10
b1 12
a1 15
a1 21
b1 11
b1 22
a1 25
etc....
How to loop through the table and get all the records/ rows of a paticular store name and store it in a datatable.
i have a table which contains a bunch of dynamically created radio button lists, im trying to write code which will loop through each one of the radio button list and get the text value of the selected item. i have the following code
foreach ( Control ctrl in Table1.Controls)
{
if (ctrl is RadioButtonList)
{
//get the text value of the selected radio button
}
}
but i am stuck on how i can get the value of the selected item for that given control.
I have a ListView which has Product Code,Desc, ColorCode, Size and Quantity as the columns as well as a checkbox
The listbox sits within a panel.
The user enters the quantity and checks the item(s) they wish to purchase. They accept their selection by clicking a button the sit within the ItemView
Once they have made their order and clicked the button I want to make the panel disappear and display the items on the page.
how to iterate through the Listview and how to grab the items and close the panel
I want to loop through gridviewrowcollection using LINQ but cannot go do it..nstead of doing:
foreach (GridViewRow gd in gdNarratives.Rows)
{
}
my datatble
name class mark address
a 1 23 c
b 2 23 d
c 3 56 4
how can i loop through cells in this datatable and bind with gridview.
I need to loop through a list of check boxes when the user clicks an export button.
The check boxes are in a panel and depending on what check box is checked I export the tables to excel.
Here is the code.
[Code]....
What happens is it exports only the first checked box to excel and then stops.
What am I doing wrong? I need to export all the checked checkboxes to separate excel files.
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).
I can also use a DataReader if that helps, but I need to dow some locking logic I would have thought.
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:
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Heres my add click event:
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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?.
View 5 RepliesI 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.
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?
View 2 RepliesI 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.
However, I don't want the gridview to display all of the columns that are actually in the temp database, because I'm carrying over 'usersubmitted, datesubmitted', etc, from the previous page for each class selected and this is redundant. (I do need to use all of the columns when they submit, however, to make a new row with complete information for each selected class in the permanent database) So, when I set the usersubmitted column visible false, for example, in the gridview, the dataset table adapter insert function fails with a data type mismatch error. I'm assuming becuase the column has to be visible, becuase when I make it visible again it works.
Can you loop through a gridview and call on cells in columns that are not visible?
The first page is like this:
the user fills out his info once in text boxes
name ____
address____
then selects up to three classes in dropdowns:
class one dropdown ...
class two dropdown....
for each dropdown, I insert name, address, class selected into a temp db Second page.
Gridview should display only classes selected, one row for each, and not
name address class selected
name address class selected
then when they submit, I insert
name address class selected
name address class selected
one row for each in permanant database
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]....
I have the following function that translates the header row in a gridview:
[Code]....
When I added sorting to the gridview cell.Text does not work anymore. How can I access the header text in the cell?
I have a stored Procedure, which copies the data in one table to another table in other DB.
I have the query to copy the records to other table.
But, tomorrow, new columns are added to the source table, then, how to dynamically copy the data from those columns to the destination column..
I have a strongly typed view for Contacts table In my index page , i am accessing the tables as --- "foreach (var item in Model)"
This table has an association with Groups Table
How can i access Groups table data from view.
intellisense gives me possibility to write like "item.Groups.GroupTitle"
But it returns null(object not initiated) How to solve this?
I am just new to programing and i want to make a function to remove the additional space between the words
View 1 RepliesI have database as
ID name desc rupees
1 Test1 abc 1000
2 Test2 dcf 1000
3 Test3 edf 1000
1 Test1 dcd 1000
2 Test2 dcf 1000
Now I want a linq query to check for the duplicate name and if present adding its rupees...
E.g.: Result will be
name rupees
Test1 2000
Test2 2000
Test3 1000
In asp.net, I am having a data table with the column ID, Name, AGe, Rank.
I need to get the records from the Column ID, Name and have to create a new data table with this column and rows.
i have dataset with two data tables inside
dt1
dt2
i want to bind data from both data table t gridview
for this how can i make join between two data tables inside dataset and retreive data