Question

我正在使用单元格点击事件进行数据网格视图，并且发现尝试从流中投射图像时遇到问题

  private void abaanaCCDataGridView_CellClick(object sender, DataGridViewCellEventArgs e)
    {
        this.Ptxtspn_code.Text = this.abaanaCCDataGridView.SelectedRows[0].Cells[this.dataGridViewTextBoxColumn2.Name].Value.ToString();
        //this.PtxtFname.Text

        this.abaanaCCTableAdapter.Fill(this.abaanaDataSet.abaanaCC);
       byte[] mydata = (byte[])this.abaanaDataSet.abaanaCC.Rows[0]["CCImage"];
        //byte[] mydata = (byte[])this.abaanaCCDataGridView.SelectedRows[0].Cells[this.dataGridViewImageColumn1.Name];
        MemoryStream stream = new MemoryStream(mydata);
        //Image img = Image.FromStream(stream);
        this.PpicBox.Image = (Image.FromStream(stream))abaanaCCDataGridView.SelectedRows[0].Cells[this.dataGridViewImageColumn1.Name].Value;
    }

Answer 1

这条线毫无意义：

(Image.FromStream(stream)abaanaCCDataGridView.SelectedRows[0].Cells[this.dataGridViewImageColumn1.Name].Value

我看不出为什么要将Image.FromStream(stream)和abaanaCCDataGridView...放在一起？

基本上你所做的并不是错误的。从MemoryStream获取byte[]并致电Image.FromStream()。

所以我认为这些线条对你有用......

byte[] mydata = (byte[])this.abaanaDataSet.abaanaCC.Rows[0]["CCImage"];
MemoryStream stream = new MemoryStream(mydata);
this.PpicBox.Image = Image.FromStream(stream);

...如果byte[]的内容有效。

从流中投射图像

1 个答案: