vb.net 将行添加到数据网格视图
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Adding row to datagridview
提问by Geo Paul
I have a datagridview which has 3 columns 1st and 2nd is textbox columns and 3rd one is link column. I try to add a new row using the command.
我有一个 datagridview，它有 3 列，第一列和第二列是文本框列，第三列是链接列。我尝试使用该命令添加新行。
STEPS.Rows.Add(New String() {stepNo, "This is description for step " & stepNo},"link")
But for the first time when I try to execute the above line it shows index was outside the bounds of the array. This doesn't happen when I am trying to insert the second row.
Also this does not happen when I am having all the 3 columns as TextBoxs.
但是当我第一次尝试执行上面的行时，它显示index was outside the bounds of the array. 当我尝试插入第二行时不会发生这种情况。当我将所有 3 列都作为文本框时，这也不会发生。
Please help me.
请帮我。
回答by danywalls
You are trying to use step.rows.add method but steps is a gridview not a datatable. the datatable object contains a methods row.add that expect a datarow object, this example show add row into datatable , and link with a gridview.
您正在尝试使用 step.rows.add 方法，但步骤是 gridview 而不是数据表。datatable 对象包含一个需要 datarow 对象的方法 row.add，此示例显示将行添加到 datatable 中，并与 gridview 链接。
Dim dt As New DataTable
dt.Columns.Add("field1")
dt.Columns.Add("field2")
Dim row1 As DataRow = dt.NewRow
row1.Item("field1") = "Hello"
row1.Item("field2") = "World"
Dim row2 As DataRow = dt.NewRow
row2.Item("field1") = "Hello2"
row2.Item("field2") = "World2"
dt.Rows.Add(row1)
dt.Rows.Add(row2)
GridView1.DataSource = dt
GridView1.DataBind()
