Input array is longer than the number of columns in this table. In VB.NET

Question

1.00/5 (1 vote)

See more:

Private Sub Form7_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Dim dr As DataRow
        con = New SqlConnection(conn)
        con.Open()
        Dim dt As DataTable
        dt = New DataTable()

        da = New SqlDataAdapter("select LAID  from LoanApplication where statuss=1", con)
        da.Fill(dt)
        
        If dt.Rows.Count > 0 Then
            dr = dt.NewRow()
            dr.ItemArray = New Object() {0, "--Select Name--"}
            dt.Rows.InsertAt(dr, 0)
           
            ComboBox3.ValueMember = "LAID"
            ComboBox3.DisplayMember = "LAID"
            ComboBox3.DataSource = dt

        End If

        con.Close()
    End Sub
End Class

What I have tried:

Private Sub Form7_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Dim dr As DataRow
        con = New SqlConnection(conn)
        con.Open()
        Dim dt As DataTable
        dt = New DataTable()

        da = New SqlDataAdapter("select LAID  from LoanApplication where statuss=1", con)
        da.Fill(dt)
        
        If dt.Rows.Count > 0 Then
            dr = dt.NewRow()
            dr.ItemArray = New Object() {0, "--Select Name--"}
            dt.Rows.InsertAt(dr, 0)
           
            ComboBox3.ValueMember = "LAID"
            ComboBox3.DisplayMember = "LAID"
            ComboBox3.DataSource = dt

        End If

        con.Close()
    End Sub
End Class

Posted 24-Jun-20 0:43am

vidya jobin

Add a Solution

Comments

F-ES Sitecore 24-Jun-20 1:54am

Your DataTable only has one column (LAID) yet you are trying to add two values to it (0 and "--Select Name--"). Rather than adding data to the datatable, add the "Select Name" to the combobox directly. Set it's property that appends databound items rather than replace them.

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Answer 1 · 2020-06-24T00:56:00

You only SELECT one column from your DB:

da = New SqlDataAdapter("select LAID  from LoanApplication where statuss=1", con)
da.Fill(dt)

Then you try to set two data items to a row of the table:

dr = dt.NewRow()
dr.ItemArray = New Object() {0, "--Select Name--"}

The system looks at it, and complains because it doesn't know what to do with your data: if it add a column to the DataTable automatically, it has no idea what to put in the other rows, if it doesn't, then it has to discard data you have just supplied.

Probably, you need to SELECT the row/number or ID from your DB as well as the LAID value.