Problems connecting to database
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Thread: Problems connecting to database

  1. #1
    Join Date
    Oct 2012
    Posts
    8

    Problems connecting to database

    Hi

    I want to become a bank , but , This line has errors: da.Fill(ds, "f12")

    Where is the problem?
    Thank


    Code:
    Imports System.Data
    Imports System.Data.SqlClient
    Public Class Form1
    
        Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
            Dim strsql As String
            Dim strcon As String
            strcon = "Data Source=.;Integrated Security=True"
    
            Dim con As New SqlConnection(strCon)
            con.Open()
            strsql = "select * from f12"
            Dim da As New SqlDataAdapter(strsql, con)
            Dim ds As New DataSet()
            da.Fill(ds, "f12")
            DataGrid1.DataBindings.Add(New Binding("dataource", da, "f12"))
            con.Close()
        End Sub
    End Class
    Last edited by ali 254; September 28th, 2013 at 10:04 AM.

  2. #2
    DataMiser is offline Super Moderator Power Poster
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    Jul 2008
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    WV
    Posts
    4,813

    Re: Problems connecting to database

    What is the error and which line are you getting it on?
    Always use [code][/code] tags when posting code.

  3. #3
    Join Date
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    Location
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    14,946

    Re: Problems connecting to database

    da.Fill(ds, "f12")

    Sounds like the problem. Hover over it, and report back
    David

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  4. #4
    Join Date
    Oct 2012
    Posts
    8

    Re: Problems connecting to database

    Thank

    When I run the program
    It gives the error:
    Name:  a9988.jpg
Views: 59
Size:  58.6 KB

  5. #5
    DataMiser is offline Super Moderator Power Poster
    Join Date
    Jul 2008
    Location
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    Re: Problems connecting to database

    so the error is telling you where the problem is and what the problem is. I would suggest that you look up the proper way to use the da.fill statement
    Always use [code][/code] tags when posting code.

  6. #6
    Join Date
    Jul 2001
    Location
    Sunny South Africa
    Posts
    11,090

    Re: Problems connecting to database

    What is F12? A Table? A View?

    Just as a side note: Naming objects are very important! The object's name should reflect what it does, so that you know where is what and what is what in the future. A name such as F12 is really really bad

  7. #7
    Join Date
    Oct 2012
    Posts
    8

    Re: Problems connecting to database

    thanks my frinds!

    resolved problem, from was conection string

  8. #8
    Join Date
    Jul 2001
    Location
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    Posts
    11,090

    Re: Problems connecting to database

    Glad you got it solved and shared with us! Please mark your thread resolved.

  9. #9
    Join Date
    Oct 2012
    Posts
    8

    Re: Problems connecting to database

    The problem of the connection string
    I connect to the database server using server explorer
    Name:  1.png
Views: 56
Size:  18.3 KB
    Then,I wrote this code:


    Code:
    Imports System.Data
    Imports System.Data.SqlClient
    Public Class Form1
    
        Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
            Dim strsql As String
            Dim strcon As String
    
            strcon = "Data Source=.;Initial Catalog=student;Integrated Security=True"
    
            Dim con As New SqlConnection(strcon)
            con.Open()
            strsql = "select * from stTAble1"
            Dim da As New SqlDataAdapter(strsql, con)
            Dim ds As New DataSet()
            da.Fill(ds, "sttable1")
            DataGrid1.DataBindings.Add(New Binding("datasource", ds, "sttable1"))
            con.Close()
        End Sub
    
        
    End Class
    The problem was solved
    Last edited by ali 254; October 1st, 2013 at 02:08 PM.

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