DataSource Controls :: Dynamically Adding Columns To A Table In The Database?
Jun 29, 2010
I wanted to know if it is possible to dynamically add columns to a table in the Database?I know how to create a table dynamically in the DB the code for it is given below, howver I do not know, how do I add columns to it dynamically.
Dim NewTable As String = "CREATE TABLE Dynamic " +
" (" +
" job_id smallint" +
" IDENTITY(1,1)" +[CODE].....
View 7 Replies
Similar Messages:
Jun 30, 2010
Dim AlterTable As String = "alter table [Upload] add [Country] nvarchar (50) default 0 NOT NULL,[Address] int default 0 NOT NULL"
Dim connection As Data.SqlClient.SqlConnection
connection = New Data.SqlClient.SqlConnection()
connection.ConnectionString = ConfigurationManager.ConnectionStrings("ASPNETDBconnectionString1").ConnectionString
Dim cmdUpdating1 As New Data.SqlClient.SqlCommand(AlterTable, connection)
cmdUpdating1.CommandType = CommandType.Text
connection.Open()
cmdUpdating1.ExecuteNonQuery()
connection.Close()
This is the code which I am using for altering the number of columns in a table in the DB. so with this code i am able to add new coulmns dynamically. Now my major requirement in this is to obtain the headercount from the user( say "telephone number" and "language") and based on it generate the columns dynamically in the table in the DB.
View 12 Replies
Apr 19, 2010
I have just started using LINQ with VS2008. I have added extra columns to my table, saved the changes, but class ClassName.Designer.CS didn't get updated. What do I have to do to updated the class? Do I have to do it manually, or is there a way to automatically synchronize tables and ClassName.Designer.CS?
View 2 Replies
Apr 20, 2010
I am returning an IList to my model of data about users. I want my end users to be able to select which columns they want to see.
I know I can do this with a huge "if statement" however, I know there must be a better way. I have created an Enum with the column names. I feel if I could take the IListItem.EnumName I would be set. However, I'm not too sure on how to do this.
View 2 Replies
Nov 11, 2010
is there a way I can add a column dynamically from code behind to the gridview in my page?
View 5 Replies
Apr 21, 2010
I have two columns first name and last name , that have duplicates, how can i remove the duplicates and only leave the distinct members intact?
View 6 Replies
Jul 12, 2010
I am a newbie to objectdatasource... I have a code i am tweeking that is entirely using objectdatasource.... The minor changes as taken me a week and still counting to figure out... Here it goes
I am adding a new column into my table(sqlserver)... I went into my dataset in and added the same column which is a foreign key of another table added to the dataset.... Now when i save it and complile... my BLL File breaks and i am not able to get into my business logic. Again this is a bll code i did not write.....
My question is.... how is a bll file generated..? The problem is obviously coming from my dll file..
View 2 Replies
Jan 29, 2010
I have one table control "table1"
And added controls to it in click event of one button as :
[Code]....
but i cant retrieve this controls in click event of another button. i think it is because of postback.
View 1 Replies
Apr 27, 2016
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..
View 1 Replies
Sep 27, 2010
[Code]....
View 3 Replies
Jan 21, 2010
I'm trying to add these 4 co,umns to the table as bit type woth a defaut of FALSE. What am I doing wrong here? I get a syntax error near (
create PROCEDURE [dbo].[AddADIFields]
AS
ALTER TABLE dbo.tblTESTS ADD (AI1 Bit 0,AI2 Bit 0,AI3 Bit 0,AI4 Bit 0)
View 2 Replies
Apr 19, 2010
I need to let my user add rows dynamically to a table, and after doing some research, it seems the best way to do this is through a GridView bound to a DataTable. However, I'm really struggling adding dropdownlists to the datatable, and this showing them in the gridview.
Here's the design I want:
ddl1 | ddl2 | ddl3 | ddl4 | ddl5 | ddl6 | ddl7 | textbox
When the user opens the form, he or she will be presented with one row. ddl2 etc will be populated when ddl1 is selected etc etc. When appropriate, the textbox will be enabled allowing the user to enter a comment (this is to report errors, and since users are, at best, not to trust to write the same thing twice, I need to use ddls.
Now comes the question - how do I add a ddl to the datatable? I've tried several ways, but I cannot get them added.
View 2 Replies
Mar 13, 2010
I'm looking to add controls dynamically to a table across multiple functions. I'm trying to convert this from a C# app to a web app using asp.net, though this is my first time using asp.net with no web development background. I read the creating tables dynamically in the FAQ but I'm still not sure how to do this.
When pressing the submit button on my form, it will create a table in a place holder. Eventually I would like it to generate urls based on the users input and do this in a function other then the one I created my table in.
In my C# app I was able to add text to a listbox using: lstOutput.Items.Add("Text"); across multiple functions but I'm having trouble doing this with a table.
I understand that my table is a local variable in the submitButton_Click function, but how do I make it global to add rows, cells and controls to it in other functions?
My current code which doesnt work:
[Code]....
View 5 Replies
Jul 13, 2010
I have seen code for adding columns at runtime but here is another scenario for you. I am using a SQLDatasource control for my gridview. And the data returned can have different columns based on the filter meaning one time I may have a column A1, A2, A3 and another time I may have A2, A3, A4. Is there any way I can look at the columns when it is binded at the beginning and add the columns first?
I really need to use the SQLDatasource though because I am connecting to an AS400 and it is using a connection already made in the webconfig and do not know any other way. I do if it was MSSQL server but not this.
View 6 Replies
Apr 2, 2010
I have created a table in my SQL database that has a primary column (Title) and another column named Callsign. How can I access the table row that has a certain title and Callsign using C# in a web page event handler?
View 7 Replies
Dec 22, 2010
Here I am binding a gridview. I dont know exactly how many rows it will exists. there may be from 1 to n rows possible there are 4 columns.
Now what I want , i.e. after gridciew binds records, suppose there are 4 rows are bounded to gridview, I want to send all rows data through mail, but in my html format there are fixed rows. I want to add rows according to throws which gridview having.
suppose gridview binds 3 rows the mail format should be like this
Date From Date To Place Days
12/12/2010 14/12/2010 Mumbai 2
12/12/2010 16/12/2010 Goa 4
12/12/2010 20/12/2010 Pune 8
1. first tell me how to get this data from gridview in variables so that i can put them in my mail format
2. this condition if grid bind only three records cos I have fiexd rows in my html format.. but if grid is haing 5 records then how will I add rows to table in my mail html format
View 3 Replies
Mar 9, 2010
Is it possible in to set up an SQL table column to have multiple values? Or would I have to put my values into a new table and link it to the original one?
View 6 Replies
Mar 21, 2011
I have the default membership table that was added automatically, then just used server explorer to add more columns, like FirstName, LastName, etc. In my code I can access all the default columns, but not the ones I created. Any thing special I need to do?
Here is how I access the table. using user. gives me all columns, but the one I created.
string userName = User.Identity.Name;
MembershipUser user = (MembershipUser)System.Web.Security.Membership.GetUser(userName).ProviderUserKey;
View 2 Replies
Jan 8, 2010
I am trying to replace all null value with space for all columns in a table.
(note: just we have to pass parameter table name "XYZ" result will come aotumaticly, we dont need to bother about column name)
i have done it through C# application. but love to do it through Sqlserver only like using storeprocedure, function.
my C# code is like that
[code]....
View 6 Replies
May 21, 2010
I am stuck in chart controls...Here is my prob... There is a ListBox containing some items...when user selects multiple items from the list box I want to generate a dynamic table with the number of columns same as that of the number items selected in the listbox. And for each selected item I want to show a seperate chart in the columns...Currently I want the same chart control for every selected item (i.e. a static hard coded chart that i will replace later by dynamic values)....I am using a method that draws a chart control using a sample dataset... I am calling it each time when a new column is created..Also the DrawChart method executes for the first column only and throws an index out of range exception! after the first execution...my code is not working...here
my code...
[Code]....
[Code]....
View 1 Replies
Dec 11, 2010
I have a listview which has a complicated Item template that contains a repeater, an objectdatasource and some other controls. On the first run I am only showing 10 Items of the listview. The user has an option to show 10 more ListView Items. If user clicks on show older items; the listview shall add another 10 items. how to go around this since my list view already has a datasource and I don't want to rebind the whole listview all over again. Instead; I just want to add another 10 items.
View 7 Replies
Mar 22, 2010
I've requirement where user can enter multiple columns like first name, lastname, email, age, sex fields and insert them into database.on my frontend aspx page, i'll be showing a single row initially with 5 text boxes(first name, lastname, email, age, sex) and a button to add more columns. when user clicks on add more, another 5 textboxes will be shown and then i'll be taking 5 + 5 (textbox values) and comma seperate them and need to insert into a table with primary auto increment key ID and the remaining 5 columns(firstname, lastname, email, age, sex). I previously worked on the same requirmeent but with only single column. Now i need to insert for 5 columns, How can i do this? Below is my stored proc which i used for single column insertion.
[Code]....
View 12 Replies
Apr 9, 2010
I want to add a field in a Existing table.
I dont want to alter the whole table.
Give me Solution at the Design side.
View 3 Replies
May 17, 2010
I guess the code is totally right and doesn't require any change in it,, however am getting an error which says "Conversion failed when converting the varchar value '11/11/2010' to data type int."check the attached file ..
[Code]....
View 7 Replies
Jun 15, 2010
I want to know that how many tables we can have in database and what is the maximum no. of columns.I also want to know the maximum size for each datatype.
View 3 Replies