Question

在vb中 如何将object类型转化为string

parts = Me.DataGridView1.Rows(j).Cells("partnumber").Value.ToString().Trim()
这里的parts是object类型的，怎么转

Answer 1

vb 使用Array.ConvertAll将object类型数组转为string类型数组有两种方法

1. 方法1

1 Dim int_array() As Object = {1, 2, 3}
2 Dim str_array() As String = Array.ConvertAll(int_array, Function(n) n.ToString)

2. 方法2

1 Dim array1 As Object() = {1, 2}
2 Dim returnValue As String() = Array.ConvertAll(array1, New Converter(Of Object, 3.String)(AddressOf IntToString))
4 Public Shared Function IntToString(ByVal i As Object) As String
5 Return i.ToString()
6 End Function

Answer 2

这个值应该是string了吧 你后面加了tostring就转成string类型了后面的trim只是去空格不会再转类型了 你是不是parts没声明类型 你可以这样写
dim parts as string = Me.DataGridView1.Rows(j).Cells("partnumber").Value.ToString().Trim()

Answer 3

cstr(object)