i want to inser the value in data base ...i am using asp.net in visual studio 2008...i want syntax to insert the datetime,integer ,float,string data type into the data base.
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i want to insert the value in sql data base.in table id coloum is unique.because of this i cant able to select not null type....so i cant able to insert the value in data base.
View 3 Replieshow check connection with data base? Now I all query put in try and catch. But I need to check only is access to data base
View 1 RepliesIm working with the following example and it works fine; i was wondering how to add / save data to another field at the same time:
I would like to add data to ImageID and PageID when the button is clicked... I can't seem to get the selectedvalue of the PageID from the dropdownlist..
Private Function GetConnectionString() As String
System.Configuration.ConfigurationManager.ConnectionStrings("ConnectionString2").ConnectionString
End Function
Private Sub InsertRecords(sc As StringCollection)
Dim conn As New SqlConnection(GetConnectionString())
Dim sb As New StringBuilder(String.Empty)
For Each item As String In sc
Const sqlStatement As String = "INSERT INTO Display_Logo (ImageID) VALUES"
sb.AppendFormat("{0}('{1}'); ", sqlStatement, item)
Next
Try
conn.Open()
Dim cmd As New SqlCommand(sb.ToString(), conn)
cmd.CommandType = CommandType.Text
cmd.ExecuteNonQuery()
Page.ClientScript.RegisterClientScriptBlock(GetType(Page), "Script", "alert('Records Successfuly Saved!');", True)
Catch ex As System.Data.SqlClient.SqlException
Dim msg As String = "Insert Error:"
msg += ex.Message
Throw New Exception(msg)
Finally
conn.Close()
End Try
End Sub
Protected Sub Button1_Click(sender As Object, e As EventArgs)
Dim sc As New StringCollection()
For Each item As ListItem In ListBox1.Items
If item.Selected Then
sc.Add(item.Text)
End If
Next
InsertRecords(sc)
End Sub
I want access remote server data base for my asp.net application my connectin string is
<add
name ="Constr"
connectionString="Server=xxx.xxx.xx.xxx,xxxSQLEXPRESS;Database=ABC;Integrated
Security=True"/>
and Error is
Login failed for user ''. The user is not associated with a trusted SQL Server connection. there is not any user id and password for access data base i already tried Uid=sa;password=sa
I have a 1.5 GB file into a table. I want to read It from server and create a file stream with it for save.
When I use DataAdapter.Fill(DataSet); code OutOfMemoryException occurs.
What should I do for read a hage file from data base?
I am in need to retrieve data from data base and display a field based on the drop down is selected
View 2 RepliesI want to grab some values with a form and then do a lookup via a datareader in a data access class (N-Tier).
I want to return a data list and bind that to a form view control.
Here is some code from the DAL, Business object and search form.
The parameterized query doesn't like the data being passed to it from my web page .
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Where is the nvarchar size of 4000 coming from ?
i have a field in data base that i increment it every time user make an eventthe code i made is taken this field and increment it every time the user make this event. but i need to guarantee if two users click this event in the same time to block data until it saves on the data base.blocking the data base field until the user increment data submitted ??note: using Asp.net 4.0 with SQL 2005
View 1 Repliesi have two sqldatasource controls. one i use to display data in textbox's ,filter'd by a select parameter in page behind code. Once checked, i want to copy this data to the other datasource ,by selecting checkbox.Then display this data in detailsview control.
At present the two datasource controls declared , render data to the page simultaneously during pageload. I want to first check data in textbox's from first source, before second datasource is rendered to screen. note, both are filtered by a page variable. i wish to leave the textbox datasource control in situ, as other controls and code depend on it.The other detailsview datasource is my problem?
I am having some issues with my base class inheritance. I am currently employing Table per Type Inheritance for the following tables:
Database:
Members Table
- Member ID (PK)
- First Name
- Last Name
- Email
- ...
Students Table
- Member ID (FK)
- Credits
- Notes
- ...
Instructors Table
- Member ID (FK)
- Biography
- Office Hours
- ...
My Entity Data Model defines "Member" as the base class for both Students and Instructors, since members can be both students as well as instructors simultaneously. The problem, however, occurs when I attempt to get a list of Members objects. Because the database contains members who are indeed students AND instructors, the following exception is thrown:
All objects in the EntitySet 'CountyCollegeEntities.BaseMembers' must have unique primary keys. However, an instance of type 'CountyCollege.NET.Administrator' and an instance of type 'CountyCollege.NET.Student' both have the same primary key value, 'EntitySet=BaseMembers;ID=10016'.
I am beginning to think that I made a mistake by building these classes to inherit from Member although it has been ideal up until this point. But before I start ripping up all my existing code to remove this inheritance, I thought I would see if anyone has any tricks that would make this work. Any advice as to either how I can get around this error or a more appropriate way to structure my classes would be very much appreciated.
how can i retrieve the all foreign keys against a single primary key. i mean to say that if a table contain a primary key then it becomes as foreign keys in which tables.
i want to take that nam of that tables and on the base of that tables then i am to delete from all the entries. e.g: if a primary key's column entry deleted then all foreing key entries should also be deleted.
there are 988 tables in a single database. it can't be possible to go for each table to setup foreign key to ON DELETE CASCADE.
.can it have any way to delete against foreign key priority wise? mean to say that parent table contain primary key, child table contain foreign key , now there is another child table which dependent previous child table. then how can i delete all record against it?
i want to do it from programatically. i am using sql server 2005
i have completed this till to that , it retrieves all foreign keys but how to delete now on the base of priority.
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I'm using the following C# code to insert the data from my webform. I'm trying to add additional information inside the SQL server database which holds the information about my memebership system.I added a table to it with the following fields:UserId (F.k) , FirstName, LastName, StudentId, Status.My user does get created however my additional data doesn't get inserted.I recive no errors, so I really don't know what I'm doing wrong.Here is my C# code:
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I am trying to pass in as an insert parameter for SQLds2 the scope_identity of the insert of SQLds1.
Exception Details: System.InvalidOperationException: Error executing 'InsertCommand' in SqlDataSource 'SqlDataSource1'. Ensure the command accepts the following parameters: @Name1, @NewId
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I do have a details view, which insert data to a database table using SQL Datasource. Now i need the data to be inserted in to 2 tables instead of one.
View 1 RepliesI am using 1 textbox with a Ajax Calendar extender to allow my user's to select a date graphically (exp: 12/15/2009). I have another textbox for the hour and minutes in military time(exp: 15:30). I think i have the code to grab the data from the 2 textbox's and combine them to be inserted into the field (exp: 12/15/2009 15:30). Here is my insert code for the Field:
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However unless I make all the fields Nullable the insert fails, on top of that none of the other field that I have selected on the Detailsview Insert or Edit are inserted into there fields. Half of my fields have to be non-null values. So how do I fix this?
I can supply additional vb code and the aspx code if needed.
This is the error I'm getting: Cannot insert the value NULL into column 'Operation_type', table '/GAOSDB.MDF.dbo.BC_Perf_Log'; column does not allow nulls. INSERT fails. The statement has been terminated.'
This is the first non-null column.
I need to get this figured out because I have 30 other web pages that will be utilizing the same approach.
i need to insert and getting japana letters from mysqldata base, i am unable to do this
View 1 RepliesI have a simple contact info webform with some validation rules developed in VS2010 that inserts a row in a SQL 2005 Express db.
However it does not always insert a row. (does for me !) There are no errors reported either in the browser or in the event log.
how I can narrow down the cause?
My code is faily simple. Basically the button calls the Insert command in the SqlDatasourcce , as generated through VS I do have one piece of code that forwards the user to a new page once the form is fillied in.
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I have a details view form inserting data into one table successfully with no problems and picking up the ID parameter from a session.
What i would like to do is one insert SOME of the fields NOT ALL get inserted into another table.
Table 1 = course
table 2 = matrixoneantwo
I tried creating a datasource which inserted data into Matrixoneanttwo and called it from the detailsview_inserting event (sqldatasource.insert() but then i realised that this data source is seperate to my current one and therefore cannot use its parameters.
Conseptually what I'm doing is simple, and technically it may even be simple, but I'm still rusty. Here's what I'm trying to do:
I have a webform that allows the user to enter a new record, and in there I have also included a couple FileUpload controls. Upon clicking the "Save" button, I'm saving the details entered into one table (ITEMS), and also inserting the FileUpload details (path, id, upload_user) into another table ATTACHMNTS). Because one ITEM can have many attachments, I needed to split the tables up. So on save, I need to save the ITEM, save the ATTACHMENT, and then also put the ITEM_ID in the ATTACHMENT table. I'm second guessing myself because I think all I'd have to do is after I do the ITEM insert, do a SELECT MAX on the ITEM table and hold the newest (MAX) id in a variable and then use it in the ATTACHMENTS update. I'm not 100% on this because there IS a chance that someone else could save a few milliseconds later and I'll link the wrong ITEM. See my delima?
I have a project that I was using Access for but now find I have to change to SQL Express. Well I have no big problem with that but I now find that the SQL Statement I have been using was for OLE and does not work in SQL/Express. I am not even sure anymore if I can dump the entire CSV file in at one time? The statement I was using is below.
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Here is my problem. What is the INSERT statement to insert a complete flat (CSV) into SQL Express? OR what method can I use to preform this task?
in one on my page i am using to add the data from popup window to grid view without using the backend means databasethis is my popup window code
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how to insert bulk data into Sql Server. Suppose I have a dataset contaning 5000 rows in it. I want to save all records to db. How it can be done and what can be best way for this.
View 2 RepliesI m uploading a text file. I want to read that text file line by line and I want to save that data into database if there are no errors in that text file. I have 5 different columns in database and I want to take those 5 columns data in the text file and insert into respective columns.
For this, which is the best way to do. Can we read and insert data into respective fields in no time.
I wrote an ASP .NET database app, that store data in the database, for some reason, and i've tried all that I know, when two or more users submit info simultaneously, their data gets store wrong, i.e. the data gets mixed up.
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