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Insert large asp.net control data row wise into sql table using asp.net c#

Below is my 46 asp.net control including textboxes and dropdownlist to insert data in single button
Below is my asp.net control id as above image given image
ddl_tag1 txt_date1 ddl_type1 txt_narration1 txt_amount1 txt_bill1 txt_fromloc1 txt_tolocation1
ddl_tag2 txt_date2 ddl_type2 txt_narration2 txt_amount2 txt_bill2 txt_fromloc2 txt_tolocation2
ddl_tag3 txt_date3 ddl_type3 txt_narration3 txt_amount3 txt_bill3 txt_fromloc3 txt_tolocation3
ddl_tag4 txt_date4 ddl_type4 txt_narration4 txt_amount4 txt_bill4 txt_fromloc4 txt_tolocation4
ddl_tag5 txt_date5 ddl_type5 txt_narration5 txt_amount5 txt_bill5 txt_fromloc5 txt_tolocation5
ddl_tag6 txt_date6 ddl_type6 txt_narration6 txt_amount6 txt_bill6 txt_fromloc6 txt_tolocation6
below is my table structure the above six row data insert one by one into below format
Sno TAQ DATE TYPE NARRATION AMOUNT BILL FROM LOCATIOM TO LOCATION
What is the best way to insert data using add button, i have to use for each loop for insertion for above text boxes and drop-down to insertion one row then another row insertion.

If you are manually putting a bunch of controls onto a page, and not databinding them to anything, creating six manual insert statements is pretty much the only option as far as I know.
As one commenter said above, a gridview might be easier, but honestly if the point is solely just to add and not to also display/update (which is what gridviews are best at) I'm not sure how much that would gain you. If the requirement is specifically and only to add six new rows at a time, you're probably doing the easiest thing.
If you ultimately want more functionality than just add records, you may want to take a look at gridview though.

How can I create a WPF data grid with an enhanced table header?

I'm currently working on a WPF based data management system, which is planned to replace the old Excel based one. This old system is mainly consist of tables where the user can input his data. One of these tables looks like this:
The number of rows and columns are fixed (25 rows per day, from 6AM to 6AM the next day).
It is kinda difficult to provide an input form for this kind of data, so I tried implementing the table in WPF using a DataGrid. However, I wasn't able to get these nifty merged cells, especially in the first and second row.
Are there any 'DataGrid' usercontrols on the market that allow merging cells, shading rows etc.? Or is there any other way of providing an user-friendly input form that I've overlooked?

If you're looking for Grid cell merging tool you can try Devexpress.
Here is a link on how to merge DataGrid cells using Devexpress
Another solution to merge DataGrid Rows is to use a ListBox

Multiple row input in asp.net for editing database table

From time to time, I need to create an input control which allows multiple rows of input, the type of input and number of columns could be different in each case but typically it would be represent a database table being edited, so it should also be possible to store an id value within each row. It should also be possible for the user to add new rows to the input if they have more data to input.
I have tried a couple of approaches to this but they are all very long winded for what seems like such an obvious and common scenario. I'm thinking that there must be a simple way to do this that I have missed.
The way that I usually solve this is by using a list view, enter all of the input controls required within the item template and use a html table for formatting, with each item being a row of the table. If there is existing data to be edited, I would load the data from the database, add a blank object to the results and bind it to the list view. If there is no existing data, I would create a collection with a blank record in it and bind it to the list view. I add a button for adding a new row. When clicked, this button retrieves all of the existing data from the list view by iterating all of the listview items and populating the data into a collection, which I would then add a blank object to and rebind the listview with the results. When saving, I would retrieve the results by iterating the listview items again and using a hidden field within each row to store the record id. This would determine whether a new record was added or an existing record was edited.
This approach works for me but I'm sure there must be simpler ways to achieve this. Looking forward to seeing how other people solve this.

For web forms, use a GridView. You can set its properties to allow editing, deleting, new rows, sorting, and paging.
Check out the MSDN example here that shows how to use it. If you bind a datasource to it, it will figure out the columns and adjust dynamically then, or you can predefine the columns you want for more customability.

You are talking about bulk insert/update. You could use XML insertion/updation for this purpose. Get all the data to a DataSet ds variable. Then use ds.GetXml() method to convert the dataset to XML string. Pass this to an XML parameter into SQL server which has the datatype 'XML'
INSERT INTO YOURTABLE
SELECT
V.VOI.value('(.)[1]', 'int')
FROM
#Input.nodes('/DATASETNAME/DATATABLENAME/') V(VOI)
Use this link to learn more

You need dynamic table with Add, View,Edit and delete operations on each data.
I would suggest using DataTable Jquery component. there are tons of examples on Data operations, and you can plug this with any Server technology including ASP.net
http://editor.datatables.net/

Adding rows to a table based on user input (ASP.NEt)

I have a TextBox entry field where the user will enter a integer value. And then there is a "Create" button, which when clicked upon must generate a Table with 2 columns :
"Name" and "Email" being the column headers.
I want each row to have a textbox in each of these columns.
All of this has to happen after the button is clicked. I have discovered that if you dynamically add a control in ASP.NET(I am using C#) then the controls are lost during postback. And I don't know how to prevent that from happening.
Can somebody please give me some ideas regarding how to go about adding rows dynamically to a table (I tried using the asp.net Server side table control but ran into the "lost-during-postback" problem - can I try with something else like a gridview ? but afaik a GV will not work without data bound to it )
Point to note is that my table has textboxes for user entry and it is not for showing data ..rather it is for accepting data from the user which will be later used to persist details to the database.

Dynamic Controls
That's involved. Here's an interesting article on the issue of dynamic controls.
I think normally if you create dynamic controls then you're responsible for recreating them on postback; however the article contains a way to use the Init event if it's copacetic with your app.
Edit:
or Regular ASP.NET Controls
You can use data bound ASP.NET controls like: DataList, Repeater, GridView, etc. (You can put text boxes and all other kinds of controls into them for repeating in each row - or "item") and bind values to it. If you need to perform some processing on the user input first, then generate an internal Array, List, Dictionary, DataTable etc. (your choice) and bind that data as a data source to the ASP.NET control of choice.
aspnetControl.DataSource = myDataTable;
aspnetControl.DataBind();
or
aspnetControl.DataSourceId = "name_of_control";
There are various ways to assign a data source.
This way you won't run into the same problems as with dynamic control creation; however there is a lot to learn to facilitate this way too.

Cleanest way to implement collapsable entries in a table generated via asp:Repeater?

Before anyone suggests scrapping the table tags altogether, I'm just modifying this part of a very large system, so it really wouldn't be wise for me to revise the table structure (the app is filled with similar tables).
This is a webapp in C# .NET - data comes in from a webservice and is displayed onscreen in a table. The table's rows are generated with asp:Repeaters, so that the rows alternate colers nicely. The table previously held one item of data per row. Now, essentially, the table has sub-headers... The first row is the date, the second row shows a line of data, and all the next rows are data rows until data of a new date comes in, in which case there will be another sub-header row.
At first I thought I could cheat a little and do this pretty easily to keep the current repeater structure- I just need to feed some cells the empty string so that no data appears in them. Now, however, we're considering one of those +/- collapsers next to each date, so that they can collapse all the data. My mind immediately went to hiding rows when a button is pressed... but I don't know how to hide rows from the code behind unless the row has a unique id, and I'm not sure if you can do that with repeaters.
I hope I've expressed the problem well. I'm sure I'll find a way TBH but I just saw this site on slashdot and thought I'd give it a whirl :)

When you build the row in the databinding event, you can add in a unique identifier using say the id of the data field or something else that you use to make it unique.
Then you could use a client side method to expand collapse if you want to fill it with data in the beginning, toggling the style.display setting in Javascript for the table row element.

just wrap the contents of the item template in an asp:Panel, then you have you have a unique id. Then throw in some jquery for some spice ;)
edit: just noticed that you are using a table. put the id on the row. then toggle it.