从DataGridView选定的单元格中获取文本

Question

我有一个DataGridView与包含数据的数据库文件中的单元格.基本上,我想从DataGridView中的选定单元格中获取文本,并在单击按钮时将其显示在文本框中.按钮单击事件的代码是:

Private Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
    Dim SelectedThings As String = DataGridView1.SelectedCells.ToString
    TextBox1.Text = SelectedThings
End Sub

但是在TextBox1中,我得到:

System.Windows.Forms.DataGridViewSelectedCellCollection

我觉得它并不像看起来那么简单.我是一名学习VB.NET的C开发人员.

Answer 1

DataGridView.SelectedCells是一组单元格,所以它并不像调用ToString()它那么简单.您必须循环遍历集合中的每个单元格,并获取每个单元格的值.

以下将创建所有选定单元格值的逗号分隔列表.

C#

TextBox1.Text = "";
bool FirstValue = true;
foreach(DataGridViewCell cell in DataGridView1.SelectedCells)
{
    if(!FirstValue)
    {
        TextBox1.Text += ", ";
    }
    TextBox1.Text += cell.Value.ToString();
    FirstValue = false;
}

VB.NET(从上面的代码翻译)

TextBox1.Text = ""
Dim FirstValue As Boolean =  True 
Dim cell As DataGridViewCell
For Each cell In DataGridView1.SelectedCells
    If Not FirstValue Then
        TextBox1.Text += ", "
    End If
    TextBox1.Text += cell.Value.ToString()
    FirstValue = False
Next

Answer 2

试试这个:

Dim i = Datagridview1.currentrow.index
textbox1.text = datagridview1.item(columnindex, i).value

它应该工作:)

Answer 3

简单地

MsgBox(GridView1.CurrentCell.Value.ToString)