Question

我收到错误

无法转换＆＃39;字符串＆＃39;到byte []

我发现了问题..图像是问题，在双击gridview上的任何特定记录后，它不会以entry_jewelry形式显示。

我有两种形式：

查看珠宝列表：＆＃34;它显示了gridview中所有珠宝的记录＆＃34;。
珠宝的进入：＆＃34;在这里我们输入股票＆＃34;。

我尝试了很多将图像从gridview转回到＆＃34;珠宝的入口＆＃34;

它不起作用请帮助我。

我的gridview代码：

private void dataGridView1_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
{
        S_Jewelry myForm = new S_Jewelry();

        myForm.Stock_Type.Text = this.dataGridView1.CurrentRow.Cells[1].Value.ToString();
        myForm.txt_stock_no.Text = this.dataGridView1.CurrentRow.Cells[2].Value.ToString();
        myForm.txt_qty.Text = this.dataGridView1.CurrentRow.Cells[3].Value.ToString();
        myForm.combo_itemk_description.Text = this.dataGridView1.CurrentRow.Cells[4].Value.ToString();
        myForm.combo_item_type.Text = this.dataGridView1.CurrentRow.Cells[5].Value.ToString();
        myForm.txt_no_of_gems.Text = this.dataGridView1.CurrentRow.Cells[6].Value.ToString();
        myForm.txt_gem_type.Text = this.dataGridView1.CurrentRow.Cells[7].Value.ToString();

        byte[] pic = (Byte[])dataGridView1.CurrentRow.Cells[8].Value.ToString();
        MemoryStream stream = new MemoryStream(pic);
        myForm.pb1.Image =Image.FromStream(stream);
        //  myForm.pb1.Text = this.dataGridView1.CurrentRow.Cells[8].Value.ToString();

        myForm.txt_gem_weight.Text = this.dataGridView1.CurrentRow.Cells[9].Value.ToString();
        myForm.txt_no_of_other_gems.Text = this.dataGridView1.CurrentRow.Cells[10].Value.ToString();
        myForm.txt_other_gems.Text = this.dataGridView1.CurrentRow.Cells[11].Value.ToString();
        myForm.txt_weight_of_other_gems.Text = this.dataGridView1.CurrentRow.Cells[12].Value.ToString();
        myForm.txt_cost.Text = this.dataGridView1.CurrentRow.Cells[13].Value.ToString();
        myForm.ShowDialog();
}

Answer 1

尝试使用图像源加载图片

//save image location in gridview (C:\\folder\\image.jpg)
string pic = dataGridView1.CurrentRow.Cells[8].Value.ToString();
myForm.pb1.Image =Image.FromFile(pic);

将图像从Gridview提取到insertform

1 个答案: