DataSource Controls :: Max Number In Column Of Datatable?
Jan 27, 2010i have a column seq_no in datatable. if the column with data 2,4,5 how can i have the max number of the column. C#
View 5 Repliesi have a column seq_no in datatable. if the column with data 2,4,5 how can i have the max number of the column. C#
View 5 Repliesi have a datatable with several columns and rows. now i want to copy the last column fully (all rows) and create the new column with that values.
it means last column values sholud be moved to new column (now this is the last column).
I have a DataSet comprised of two DataTables. One of the DataTables is further comprised of the results of two different SQL calls. I need to alphabetize the results of those SQL calls. After the seconds set of results is added to the DataTable I tried the following but the end result (displayed on the page) did not alphabetize the returned results. There was no error. Can anyone advise me please. 'programs' is the DataTable name, title is the column name.
programs.DefaultView.Sort = "Title ASC";
could some one help me how can i get max number of a column in sqlserver2005.
actually in my column records are,
1,2,3A,3B,3C LIKE this format.
so how can i get max numer i.e 4 here.
I have a datatable that looks as follows:
Make,Ford,0
Model,Fusion,0
Year,2010,0
Make,Ford,1
Model,Focus,1
Year,2010,1
I'd like to loop through each row and replace all the values of the same type in the 3rd column with a different value.
So for example I would change all the 0 to 1234 and all the 1 to 1235. So I'd end up with:
Make,Ford,1234
Model,Fusion,1234
Year,2010,1234
Make,Ford,1235
Model,Focus,1235
Year,2010,1235
Whats the best way to do that ?
I am using a datatable with different columns. Datatype of each column is Double. Now I want to format that column to Indian positioning number system. e.g(54,36,54,656.00). How can I do this???
View 1 Replies[Code]....
Refer to datatable columns with database column names?
I'm trying to filter a DataView to return all the rows whose column x starts with a number: The following works in SQL Server:
select *
from dbo.Page
where Name like '[0-9]%'
However, when I try this:
dataView = new DataView( someDataTable, "Name LIKE '[0-9]%'", "Name ASC", DataViewRowState.CurrentRows);
I get "invalid parameter [0-9] with Operator Like" error message. What is the correct syntax to achieve my goal?
If I am passed a datatable and I cant change the column structure..is there anyway to set an existing column to a Primary key so I can easily Find() the row I am looking for?
View 1 Repliesi have the dataset with one table.Table contains three column like 'Name','Location','Pin'.I would like to move the data from another table based on schema.
View 2 RepliesI have two datatables, I want to get all records which are in one datatable but all matching records which exist in another datatable should not be available.
In terms of set, you can say that record which are in 1st datatable but not in 2nd DataTable.
any one know why are the following two give me different result? they should both give me no results as the value I give is not available. however, number 1 give me many results, and number 2 works as expected. I'd like the number 1 working as the same as number 2.
1. DECLARE
@SearchMCat nvarchar,
@SearchTitle nvarchar,
@SearchDesc nvarchar
SET @SearchMCat = 'fjiewo;jafoia'
SET @SearchTitle = 'fryere'
SET @SearchDesc = 'fdsfdsafae33'
SELECT ArticleCategory.CategoryDisplayName, Article.AudioPlaybackTargetTabID, Article.VideoPlaybackTargetTabID, Article.StartTime, Article.DateAdded, Article.Body, Article.Synopsis, Article.Title, Article.ArticleHasAudio, Article.ArticleHasVideo, Article.createdBy,
Article.RatingTotal, Article.RatingCount, Article.ArticleID, ArticleCategory.CategoryName
FROM ArticleCategory RIGHT OUTER JOIN Article ON ArticleCategory.ArticleCategoryID = Article.MasterCategory
WHERE (ArticleCategory.CategoryName LIKE '%' + @SearchMCat + '%') or (Article.Title LIKE '%' + @SearchTitle + '%') or (Article.Body LIKE '%' + @SearchDesc + '%')
2.
SELECT ArticleCategory.CategoryDisplayName, Article.AudioPlaybackTargetTabID, Article.VideoPlaybackTargetTabID, Article.StartTime, Article.DateAdded, Article.Body, Article.Synopsis, Article.Title, Article.ArticleHasAudio, Article.ArticleHasVideo, Article.createdBy, Article.RatingTotal, Article.RatingCount, Article.ArticleID, ArticleCategory.CategoryName
FROM ArticleCategory RIGHT OUTER JOIN Article ON ArticleCategory.ArticleCategoryID = Article.MasterCategory
WHERE (ArticleCategory.CategoryName LIKE '%' + 'fdsafdsafdsa' + '%') or (Article.Title LIKE '%' + 'fffaery' + '%') or (Article.Body LIKE '%' + 'fdas3r43ffdsa' + '%')
How to get Column Data Type in Autogenerated Grid View ?
View 1 RepliesI am grabbing an XML feed an throwing it into a dataset. I am looping through the datatable that is in the dataset and adding a column to the datatable (Distance) that is the result of a calculation. What I then need to do is sort the dataset on the new column (Distance) I added, but it is not working... Here is a sample of my code.
[Code]....
for below i dont want to use sql Query bcz data is not coming from sql/oracle database.
its comeing from propertary database and data is in datatable .
This is datat table format :
[code]....
I have a datagrid that I want to have a column that just lists the row number. Does the data grid have a feature that does this?
View 2 RepliesWhat I have is a datatable being constructed from Sharepoint API. We dont need to worry about the sharepoint api.The code where it fills the data is as follows
Datatable dt = new datatable();
Sharepoint.fill(dt);
Write what I want is as the dt is being filled is to create another column called full path which has a formula col1+col2I dont want to do a for next loop after the dt is filled . very slow !
I am using the C# code you posted in the link below,
[URL]
but when I run it I am getting the error:
"A column named 'link' already belongs to this DataTable: cannot set a nested table name to the same name."
I'm currectly tryin to access a specific value in my database in a specific column. I'm tryin to use the primary key of the table to access the actual value in the row of that ID.
The current code:
[Code]....
Just iterates through the table and looking for any row with the boolean 'checkin' value is True, then it takes the 'id' value of that row and stores it into an array. Is there a way that I can access a another entry, and only that entry, in the table with the 'id' stored in the array?
Like if my data base contained and int, primarykey, `id` value, a boolean, `checkedin` value, and a `time` value, is there a way to access, lets say, the row with `id` equalling 3 and and the checkIn value from that row?
I'm trying to retreive a column value from gridview5 to use it in a query to display resuls in gridview, Also how do you hide a column in the grid?
Where (p.Link_ID Like GridView5.?
[code]....
I want to transfer data from datatable to a gridview with a hyperlink column. But dont know how to do.
I attach my code as below, what i want to do is to output 2 columns in gridview, and the first column should be a hyperlink. However, now the first column still shows nothing.
Web page code:
[Code]....
C# code:
[Code]....
how to retrieve the column number in gridview
i am able to get the row number using this syntax <%# Container.DataItemIndex + 1 %>
but what about column number?
The number of 2'values in Column of gridview?
View 5 RepliesBelow is the code behind for a simple aspx page. The web form contains one GridView (GridView1) and one label (Label1). I create a Data Table, then add a row to the table. I then DataBind my GridView to the DataTable. (so far so good) When I run the page I do see the GridView and the single row of data. However the checkbox shown is not enabled, meaning the user cannot uncheck or check it. (As if was not enabled)
Imports System.Data.SqlClient
Imports System.Data
PartialClass test
Inherits System.Web.UI.Page
ProtectedSub Page_Load(ByVal senderAsObject,ByVal eAs System.EventArgs)HandlesMe.Load
CreateDT()
EndSub
PrivateSub CreateDT()
Dim dtAsNew DataTable
Dim col1AsNew DataColumn
[code]...
i build some shopping cart. I have Datalist that display products from SQL table (id, productName, productPrice) and "Add" button. After the user click the button the product appear in the GridView (im using Session DataTable) until now all fine and work greate! in every product i need to add 2 checkboxlist from SQL tables (its some extra to the product). How can i get the items the user was checked and put them with the product name in the same datatable coloumn? the aspx code:
[Code]....
this is the code behaind:
[Code]....