vb.net - vb.netデータテーブルをデータグリッドビューにロード

Question

次のコードを使用して、datagridview からデータ テーブルを生成します。

 Dim t1 As New DataTable
 For Each col As DataGridViewColumn In DataGridView1.Columns
        t1.Columns.Add(col.HeaderText)
    Next

    For Each row As DataGridViewRow In DataGridView1.Rows
        Dim dRow1 As DataRow = t1.NewRow
                  For Each cell As DataGridViewCell In row.Cells
            dRow1(cell.ColumnIndex) = cell.Value
        Next
    Next

問題は、このデータテーブルを別のデータグリッドビューにロードする方法です。

Answer 1

Dim table As New DataTable
    ' Create four typed columns in the DataTable.
    table.Columns.Add("Dosage", GetType(Integer))
    table.Columns.Add("Drug", GetType(String))
    table.Columns.Add("Patient", GetType(String))
    table.Columns.Add("Date", GetType(DateTime))
    ' Add five rows with those columns filled in the DataTable.
    table.Rows.Add(25, "Indocin", "David", DateTime.Now)
    table.Rows.Add(50, "Enebrel", "Sam", DateTime.Now)
    table.Rows.Add(10, "Hydralazine", "Christoff", DateTime.Now)
    table.Rows.Add(21, "Combivent", "Janet", DateTime.Now)
    table.Rows.Add(100, "Dilantin", "Melanie", DateTime.Now)


    DataGridView1.DataSource = table


    DataGridView2.DataSource = table

if you change or add rows in one datagrid it changed in other one. or if you change in code and add rows you see the changes on datagrids.

Update1:

if you want to get data from datagrid1 and show only that data in datagrid2 use :

Dim table1 As New DataTable
table1 = table.Copy()
DataGridView2.DataSource = table1

Answer 2

あなたも必要です

GridView1.DataBind()

と

GridView2.DataBind()

最後に