热到二进制图像显示从数据库到图像框。?8

时间:2014-10-17 08:21:15

标签: c# asp.net image binary

我希望在我的网页上显示学生信息和学生形象,同时从下拉列表中选择学生ID。下面给出的代码用于显示信息和图像。但图像显示不正确。请检查代码和输出屏幕。

代码:

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{

        DataSet1TableAdapters.TextBoxTableTableAdapter tx;
        tx = new DataSet1TableAdapters.TextBoxTableTableAdapter();
        DataTable dt = new DataTable();
        dt = tx.GetstudData(int.Parse(DropDownList1.SelectedValue));

        foreach (DataRow row in dt.Rows)
        {
            TextBox1.Text = (row["FirstName"].ToString());
            TextBox2.Text = (row["SecondName"].ToString());
            byte[] barrImg = (byte[])row["StudImage"];
            string base6=Convert.ToBase64String(barrImg);
            Image1.ImageUrl = "data:image/jpeg;base6," + base6;
        }
}

SQL查询:

SELECT FirstName, SecondName, StudentImage FROM TextBoxTable WHERE (Id = @Id)

Aspx来源:

<div>
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True">
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
<asp:Image ID="Image1" runat="server" />
</div>

数据库:

enter image description here

输出:

enter image description here

1 个答案:

答案 0 :(得分:1)

base64而不是base6 ???

Image1.ImageUrl = "data:image/jpeg;base64," + base6;