我在这里需要帮助。我正在使用gridview中的数据来填充文本框和pictureBox。当我点击一行时,文本框就会填满。但图片框只显示一张图片。无论我选择哪一行同一图像出现。请我是c#的新手,我需要帮助。这是我到目前为止所做的 private void viewMemberGrid_CellClick(object sender,DataGridViewCellEventArgs e) {
DataGridViewRow dr = viewMemberGrid.SelectedRows[0];
GmemIDBox.Text = dr.Cells[0].Value.ToString();
GsurnameBox.Text = dr.Cells[1].Value.ToString();
GfirstnameBox.Text = dr.Cells[2].Value.ToString();
GphoneBox.Text = dr.Cells[3].Value.ToString();
memDeptBox.Text = dr.Cells[7].Value.ToString();
memPortBox.Text = dr.Cells[8].Value.ToString();
GaddBox.Text = dr.Cells[5].Value.ToString();
GdobBox.Text = dr.Cells[6].Value.ToString();
string select = "Select NEWMEMBER.MemberID, Surname, Firstname, PhoneNumber, MemberPic, HomeAddress,DOB,DeptID,PortfolioDesc from NEWMEMBER inner join Pictures on NEWMEMBER.MemberID = Pictures.MemberID join PortfolioDescription on PortfolioDescription.PortfolioId = NEWMEMBER.PortfolioID";
SqlConnection c = new SqlConnection("Data Source=.;Initial Catalog=Cmanager;Integrated Security=True");
SqlCommand cmd = new SqlCommand(select, c);
try
{
c.Open();
SqlDataReader dro = cmd.ExecuteReader();
if (dro.Read())
{
byte[] picarr = (byte[])dro["MemberPic"];
MemoryStream ms = new MemoryStream(picarr);
ms.Seek(0, SeekOrigin.Begin);
memPicBox.Image = Image.FromStream(ms);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
c.Close();
}
答案 0 :(得分:1)
对您的选择语句进行一些更改
;
我不知道数据库中的MemberID列是否为Number或Varchar
;
如果是号码
string select = "Select NEWMEMBER.MemberID, Surname, Firstname, PhoneNumber, MemberPic, HomeAddress,DOB,DeptID,PortfolioDesc from NEWMEMBER inner join Pictures on NEWMEMBER.MemberID = Pictures.MemberID join PortfolioDescription on PortfolioDescription.PortfolioId = NEWMEMBER.PortfolioID Where NEWMEMBER.MemberID = " + dr.Cells[0].Value.ToString();
或者如果它是Varchar
string select = "Select NEWMEMBER.MemberID, Surname, Firstname, PhoneNumber, MemberPic, HomeAddress,DOB,DeptID,PortfolioDesc from NEWMEMBER inner join Pictures on NEWMEMBER.MemberID = Pictures.MemberID join PortfolioDescription on PortfolioDescription.PortfolioId = NEWMEMBER.PortfolioID Where NEWMEMBER.MemberID = '" + dr.Cells[0].Value.ToString() + "'";