Datatable update rows c#

2019-12-16 09:51 Also as he noted, you need some kind of data structure with O(1) Contains method. However since you do not use other fields of from the rows of ModelResults, you only need a HashSet of [ Request ID s. I can't imagine this is the optimal coding for data table update operations, maybe though?

How to Edit a row in the datatable. Now I want to find by index, and update that row. say for e. g. I want to change value of Productname column to cde that has the Productid column value: 2. c# datatable. share improve this question. edited Oct 28 '13 at datatable update rows c#

Is there any way to update value in one datatable from another datatable. For example lets say I have two datatables dt1 and dt2. As shown above, I have two datatable and I have to replace tablename column value in 1st datatable with the newtablename column value from 2nd datatable with the mapping of tablename which is common in both the datatable.

You could simply store the result since you are selecting the same DataRows twice. But the ToList is redundant since DataTable. Select already returns a collection, hence your doubling the required memory for nothing. The LINQ approch you've accepted does not need another collection (than the DataTable) at all. The foreach enumerates the query directly. . You could also enumerate DataTable. Rows datatable update rows c#

Nov 22, 2013 I have got this result from DB and stored in datatable like below. , Type. S. U. C. B. Now I need to update the B to S and U to C, and then i need to procedd with the updated result, it should not affect the database. . How to do this in c# ? Basically, what I need to do is update a record in my datatable without knowing what the row index is. So I get the row index by searching the value in the columns of the datatable. I have searched over the internet but I can't understand why the code I have now only updates only the FIRST record in the datatable even when the value I'm Nov 18, 2013 hi, i have 2000 records, that record fetching in to data table and bulk copy to Sql server data base, in that requirement we have to update statically all rows in that table, here with out using for each and for loops. if any one know update all rows in multiple columns in at a time. i am using Hi, Replace your code using Linq. Please find the datatable update rows c# Update a DataTable in C# without using a loop? Ask Question 9. 8. Let suppose there are three columns in my DataTable If I know the code and name, how can I update the color of that specific row whose code and name match my criteria? I want to do this without using Loops! c# . net datatable. share improve this question. edited Apr 4 '17 at

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