ADO.NET :: Join Two Datatables In C#?
Sep 27, 2010I have 2 datatables and i would like to join these two tables based on same TemplateID in both the tables. How can i do it in c#.
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Forms Data Controls :: Join Two Datatables Codebehind Page?
Aug 2, 2010I have two datatables with datavalues
datatable A
ID data1 data2 data 3
datatable b
ID data4 data5 data6
I would like to merge datatable A and datatable B like so the resultset is like this in tableC
ID data1 data2 data3 data4 data5 data6
When my code finishes the column names are in this format but the data from dt b is pushed down into new rows instead of added on as new columns.
i used merge method but it giving like the bellow
example:
ID data1 data2 data3 data4 data5 data6
1 X X X
2
3
4
5
1 X X X
2 X X X
3
4
5
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ere is my code... is returns the correct threads and some that should not be there.
[Code]....
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View 1 RepliesADO.NET :: Join 3 Tables Using Inner Join?
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View 6 RepliesADO.NET :: Query From Multiple Datatables?
Nov 25, 2010I am trying to create a stock scanner which allows users to filter stocks based on multiple criteria that they select.
Like the following example with 2 criteria:
Criteria 1 Filtered Result: StockA, StockB, StockC, StockD
Criteria 2 Filtered Result: Stock B, Stock C, StockE, StockF
SCANNER RESULT: Stock B, StockC (ideally this result would be displayed in a GridView)
Now this seems like an easy task for a simple SQL JOIN statement, but the problem is that the SQL statements I've written for some criteria are already so complex that it's unthinkable to combine them further by using a SQL JOIN statement.......(yes I've tried and failed).
I think the only way to accomplish this is to put each criteria-filtered result into an array or datatable, and then try to query to see which stocks exist in all the arrays/datatable (in other words satisfy all criteria), and to display these stocks in a gridview. After doing some research online, it is possible to do query from multiple datatables by either using:
JOINVIEW(DataRelation) or LINQ
But which one is the best method (if it works)? I didn't consider using a loop for this since it would be too inefficient, especially if a user select many criteria.
Datatables - Two Tables On One Page?
Jul 31, 2010My project is in Asp.Net Webforms using C#.
On one of my web pages, I want to have two tables. One is going to be a summary table and the other a more detailed breakdown of the summary. When the user clicks on one of the rows of the summary table, I want the corresponding breakdown rows to appear in the breakdown table.
These tables can have anything between 60 and about 500 rows.
I have thought of two possible ways of doing this and I'm not sure which is best, or if there is another, better way of implementing this:
1) When a user clicks on one of the rows in the first table, a postback event happens, and the data for the second table is loaded from the code behind.
2) When the webpage is loaded for the first time, both tables are filled with all of the possible data, but all of the rows in the second table have the "display: none;" CSS attribute. When a user clicks on a summary row, the CSS of the corresponding breakdown rows is changed using JavaScript.
C# - Displaying Standard DataTables In MVC?
Feb 11, 2010 but back in the days of Webforms you would return a Dataset which you would then bind to a grid. But now in MVC you're not supposed to pass a datatable because you cannot serialize it and it's technically passing objects into the View where it doesn't belong? But how on earth am I meant to display data on a view?! I can't use LINQ to SQL classes here since this is a pure in memory data structure.
Ideally I'd just like to able to have an object which I can iterate within the view.
I'm really at a bit of a loss I have read the article from the "Gu" and I can only surmise that I have to pass back a ViewData Object instead?? Am I going nuts here?
Using DataTables And Storing Values?
Jan 15, 2010I am new to c#.net.i have a method where i pass parameters in a loop and for each parameter there are different rows returned .rows (which have data of different data types) from database.I want to store that data rows somewhere like arraylist. and use for furthue peocessing.Plz tell me how to do this. enter code here
/*ideally Get_ChildAndParentInfo(int pointid) function returns array list but how to deal with array list containing datarows with different data types */
public static ArrayList Get_ChildAndParentInfo(int PointID)
{
[code]...
Combine Two Datatables Into Single Datatable?
Oct 27, 2010I am trying to combine two datatables into single datatable... First table contains 3 columns[e.g: 'col1','col2','col3'] Second table contains 2 columns[e.g: 'col4','col5'] Both tables have the same no.of records[rows], but different columns. How to combine them into single table? I need DataTable with columns ['col1','col2','col3','col4','col5']. I am inserting through looping the both the tables and adding values into third table. I tried the Merge (DataTable.Merge()), but it is adding the records to bottom of first one, but i need it should be added to the side[as columns] to first table'
View 6 RepliesWeb Forms :: Compare 2 DataTables With Different Columns?
Jul 30, 2010I need to compare 2 DataTables that do not necessarily have the same structure. One dataTable is the master (dtDB), the second dataTable (dtFORM) is what will have the changes, if any, but not necessarily all of the columns of dtDB. In both tables the first column will be the primary key and all columns that dtFORM has, dtDB will have.
There is another DataTable (dtResults) that will flag the differences
This is where I am at so far:
[Code]....
ADO.NET :: Make Relation Between Two Datatables In Dataset?
Aug 3, 2010want to make relation between two datatable based on one column
this column is present in both datatables but name is diffrent and values are same
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C# - Omparison Of Datatables And Finding Out The Difference?
Feb 10, 2011DataTable 1 :-
Caption |ID
------------
Caption1|1
Caption2|2
Caption3|3
DataTable 2 :-
Name |ID
------------
Name1|1
Name2|2
I want to compare the above two data tables and fetch the value "Caption3" so I can display a message on screen that "No name for "Caption3" exist!"
I have tried merging as follows but it's fetching DataTable 2 as it is in dtTemp !
datatable1.Merge( datatable2);
DataTable dtTemp = datatable2.GetChanges();
Also tried the logic as follows that removes rows with same IDs in both tables and updates datatable2's rows and only the ones that don't have duplicated IDs will remain...This didn't work either.
if (datatable2.Rows.Count != datatable1.Rows.Count)
{
if (datatable2.Rows.Count != 0)
{
for (int k = 0; k < datatable2.Rows.Count; k++)........
How do I fetch those "CAPTIONS" whose corresponding "NAMES" do not exist?
Note:- Rows in both datatables will vary based on some logic. What I want is to fetch that CAPTION from datatable1 who's KCID doesn't exist in datatable2.
edit:- How else do I loop through datatable1's rows and check which ID(from datatable1) doesn't exist in datatable2 and then print those captions on my page?
@CodeInChaos:: I have not worked with Linq-To-Objects at all so not able to understand your code :/
Is there any other way to loop through that datatable and fetch "caption " who's correcponding "Name" doesn't exist in the datatable2?
Can Use SQL Server Session State With Sessions That Contain DataTables
Feb 2, 2011I have inherited an ASP.NET 3.5 application that relies heavily on sessions and storing DataTables within them (I know - bad, bad, bad). The application pool on the remote shared hosting service indicated that memory is at full capacity and as a result customers are losing their shopping carts because of dropped sessions.
Ultimately the goal is to rewrite this code, but for the time being I would like to stabilize the site the best I can. The host has recommended I use SQL Server Session State instead of in-proc. I have no experience with this, so I'm hoping it's as simple as running the .sql against the database to configure SQL Server and updating the web.config.
DataSource Controls :: Compare Data In Two Datatables?
Jun 30, 2010I have two datatables with same columns. I want to compare those two tables and I want to know whether data in those tables is same or different. If both Prod and Qty are same then I have to get true or else false.
That is
TblOne
Prod Qty
A 2
B 2
C 3
TblTwo
Prod Qty
A 1
B 2
C 2
As of now I am looping thoruh all the rows. Is that the only solution or is there any best way to do this ?
Web Forms :: Compare Two DataTables And Return 3rd With Difference?
Mar 29, 2010I have two DataTables, with Different Columns. Some of the Columns are same between them.
i am looking to do this.It is also refered to as MINUS and is simply all the rows that are in the First table but not the Second.
These three colums are same between the two tables.
string[] strCols = { "CustomerID", "CustomerName", "CustomerCity" };
I tried this but it seems to return all the Rows from the Table1.
[Code]....
ADO.NET :: How To Create A Datatable With 2 Datatables In Dataset Programmatically
Apr 1, 2011I have 2 views in sql server and I create a dataset with those 2 views as datatables. Now I need to create a datatable and programmatically fill it with the other 2 datatables. Take the 2 datatable and create a third one in the dataset not create a third view in sql server.
View 2 RepliesDataSource Controls :: Combine 2 Datatables From A Webservice?
Jun 23, 2010The case is: I use a webservice that gives me information about companys. For example: I entered a companyname and the webservice give me a list of al company's in the country. The webservices return a one dimensional array. The problem is that I must search in two register so the webservices returns 2 array's. I put the data from both arrays into 2 datatables. The data in the 2 datatables can be different or the same.
The question is: How could I matching the data on ID and combine the data into 1 datatable.
The code:
//Create result
SearchResult Result1;
SearchResult resultZoekmogelijkheid2;
//send van Soap Request
[Code]....
Web Forms :: Populate DataSet With Asynchronously Retrieved DataTables?
Oct 18, 2010I need to asynchronously retrieve several resultsets which I store in DataTables and add these DataTables to a DataSet. When the final DataTable is filled and added to the DataSet the page must then continue processing utilizing this DataSet I have figured out how to implement delegates to asynchronously retrieve my DataTables but I'm unclear how to add them to a DataSet in a thread-safe manner. How is this best accomplished? Before processing I know how many DataTables there will be, so what is the best way to track the progress of the asynchronous retrievals and allow the page to continue only after I have all of the data?
View 3 RepliesWeb Forms :: Dynamically Creating Collapsible Panels For Datatables Using VB
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<asp:panel id=pnltitle1>dt1.rows(first row)</asp:panel>
<asp:panel id=pnlcontent1>dt1.rows(remaining rows)</asp:panel>
<asp:panel id=pnltitle2>dt2.rows(first row)</asp:panel>
<asp:panel id=pnlcontent2>dt2.rows(remaining rows)</asp:panel>
<asp:panel id=pnltitle3>dt3.rows(first row)</asp:panel>
<asp:panel id=pnlcontent3>dt3.rows(remaining rows)</asp:panel>
Web Forms :: Populate / Add DataSet With Asynchronously Retrieved DataTables?
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View 6 RepliesState Management :: Multiple DataTables In Memory - Best Practice?
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View 4 RepliesJquery Datatables Add Checkbox With Ajax Server Side Response?
Jun 18, 2010I am using C# ASP .NET MVC and ajax calls. I am able to get the display of the table along with all features. But, I don't understand how do I add a checkbox and button. I have tried dom-checkbox as well but can't get it to work.
My code looks like this:
$(document).ready(function () {
$('#personTable').dataTable({
"bJQueryUI": true,
"sPaginationType": "full_numbers",
"bProcessing": true,
"bServerSide": true,
"sAjaxSource": "/Home/GetCustomData",
"aoColumns": [
{ "sSortDataType": "dom-checkbox", "sTitle": "Select",
sName": "" },
{ "sName": "ID", "sTitle": "ID" },
{ "sName": "FirstName", "sTitle": "First Name" },
{ "sName": "Email", "sTitle": "Email"}]
});
});
My Html is :
[table border="1" id="personTable" class="display"]
[/table]
JavaScript - JQuery DataTables Server-side Processing Using WebForms?
Aug 20, 2010jQuery DataTables server-side processing using ASP.NET WebForms.
Solution:
Darin Dimitrov answered the question using an example which pages and sorts, but doesn't do any searching.
Here's my basic modification of his work to make searching work on his example:
[code]....
