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Asked: 2026-05-26T15:39:42+00:00

I need to have multiple lines in a cell, so I use DataGridViewTextBoxColumn.DefaultCellStyle.WrapMode =DataGridViewTriState.True.

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I need to have multiple lines in a cell, so I use DataGridViewTextBoxColumn.DefaultCellStyle.WrapMode =DataGridViewTriState.True.
I add columns (datagridviewtextboxcolumn) in designer. Then bound datagridview to a table which has exact the same columns as datagridview. Then I find that datagridview has duplicate columns: the first column is empty (which I guess is added through designer), the second column is filled with data from table. My question is how to correctly allow multi-lines and bound to a table at the same time?

In Designer

Friend WithEvents DGV As New System.Windows.Forms.DataGridView
Friend WithEvents columnClient As System.Windows.Forms.DataGridViewTextBoxColumn
Friend WithEvents columnAccount As System.Windows.Forms.DataGridViewTextBoxColumn
Me.DGV.Columns.AddRange(New System.Windows.Forms.DataGridViewColumn() {Me.columnClient, Me.columnAccount})
Dim cellStyle As System.Windows.Forms.DataGridViewCellStyle = New System.Windows.Forms.DataGridViewCellStyle
cellStyle.WrapMode = DataGridViewTriState.True
Me.columnClient.DefaultCellStyle = cellStyle
Me.columnAccount.DefaultCellStyle = cellStyle

Then I bound datagridview to a table

DGV.DataSource = m_table
m_table.Columns.Add(columnClient)
m_table.Columns.Add(columnAccount)

Dim rowText As DataRow = m_table.NewRow
Dim strBaseKey As String="base key"
Dim accountkey As String="account key"
rowText(columnClient) = strBaseKey
rowText(columnAccount) = accountKey

Add: I just deleted columns in designer and it works now.

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1 Answer

  1. Editorial Team

    The solution is simple: just do not add columns to datagridview in designer; instead add columns to table and then bound datagridview to table. To enable multi-lines in datagridview, set the column.DefaultCellStyle.WrapMode=DataGridViewTriState.True

    DGV.DataSource = m_table 
m_table.Columns.Add(columnClient) 
m_table.Columns.Add(columnText) 

Dim rowText As DataRow = m_table.NewRow 
rowText(columnClient) = "Bob"
rowText(columnAccount) ="Account1" & Encironment.Newline & "Account 2"

DGVTable.Columns(columnText).DefaultCellStyle.WrapMode = DataGridViewTriState.True

    The datagridview will show:

       columnClient     columnAccount
   Bob              Account1
                    Account2
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