GDI+ 中发生一般性错误。

[博帕尔2019]

GDI+ 中发生一般性错误。

private void button2_Click(object sender, EventArgs e)
{
string str = "";
Panel panel = new Panel();
panel.Parent = PanelBack;
//foreach (Control C in PanelBack.Controls)
//{
// if (C is Panel)
// {
// str = C.Name;
// }
//}


//string sqlQueryFloorInfo = string.Format("select SFloorName,SFloorText,SBuildingText,SWidth,SHeight,SImageData from TB_FloorInfo, TB_BuildingInfo where TB_FloorInfo.SBuildingName = TB_BuildingInfo.SBuildingName and TB_FloorInfo.SFloorName='" + C.Name.Trim() + "'");


DBOperateClass DBOperate = new DBOperateClass();
DataSet dsFloorInfo = new DataSet();

string sqlQueryFloorInfo = sqlQueryFloorInfo = string.Format("select SFloorName,SFloorText,SBuildingText,SWidth,SHeight,SImageData from TB_FloorInfo, TB_BuildingInfo where TB_FloorInfo.SBuildingName = TB_BuildingInfo.SBuildingName and TB_FloorInfo.SFloorName= 'Floor140122051103453'");
dsFloorInfo = DBOperate.GetDataFromDB(DBOperate.ServerName, DBOperate.DatabaseName, DBOperate.UidName, DBOperate.PwdName, sqlQueryFloorInfo);
Image image = GetImageFromBytes(HexStringToByteArray(dsFloorInfo.Tables[0].Rows[0]["SImageData"].ToString()));
dsFloorInfo.Dispose();
DBOperate = null;
GC.Collect();
//Image image = Image.FromFile(@"C:\1001001000161.png");
pictureBox1.Image = image;
//image.Save(@"C:\100100100016.png");

//C.Width = image.Width;
//C.Height = image.Height;
//C.BackgroundImage = image;
//image.Dispose();
pictureBox1.Image.Save(@"C:\100100100016.png");
//GDI+ 中发生一般性错误。

//PanelBack.Width = image.Width;
//PanelBack.Height = image.Height;
//PanelBack.BackgroundImage = pictureBox1.Image;


}


在线等！~

[博帕尔2019]

从数据库中读取图片后，能够放到 pictureBox1中且能显示出来，为什么保存的时候却报错啦 错误提示为：“GDI+ 中发生一般性错误。” 还有 “未处理ExternalException” 求解啦，纠结几个小时了

[博帕尔2019]

private void button3_Click(object sender, EventArgs e) { DBOperateClass DBOperate = new DBOperateClass(); DataSet dsFloorInfo = new DataSet(); string sqlQueryFloorInfo = sqlQueryFloorInfo = string.Format("select SFloorName,SFloorText,SBuildingText,SWidth,SHeight,SImageData from TB_FloorInfo, TB_BuildingInfo where TB_FloorInfo.SBuildingName = TB_BuildingInfo.SBuildingName and TB_FloorInfo.SFloorName= 'Floor140122051103453'"); dsFloorInfo = DBOperate.GetDataFromDB(DBOperate.ServerName, DBOperate.DatabaseName, DBOperate.UidName, DBOperate.PwdName, sqlQueryFloorInfo); Image image = GetImageFromBytes(HexStringToByteArray(dsFloorInfo.Tables[0].Rows[0]["SImageData"].ToString())); pictureBox1.Image = image; //正常将图片显示在界面上 PanelBack.BackgroundImage = image; //没有报错 } //但函数执行完后，就出现了内存不足的情况

[博帕尔2019]

求大神指点啦！~

[宝_爸]

PictrueBox还在用Image 试下下面的代码 using (Bitmap bmp = new Bitmap(PictureBox1.Image)) { bmp.Save(@"C:\100100100016.png", ImageFormat.PNG) }

[智商余额不足]

路径保存在同一个位置（覆盖源文件）会发生这个异常，msdn有说

[智商余额不足]

http://msdn.microsoft.com/zh-cn/library/ktx83wah%28v=vs.110%29.aspx

[我真的不是菜鸟]

pictureBox1.Image.Save(@"C:\100100100016.png");

改为

image.Save(@"C:\100100100016.png")

[youzelin]

这样试试：将 picturebox 的 image copy 到 Bitmap 对象上，然后 save 这个 Bitmap 对象。

[博帕尔2019]

System.Drawing.Image img = System.Drawing.Image.FromFile(path); System.Drawing.Image image = new System.Drawing.Bitmap(img); img.Dispose(); panel1.BackgroundImage = image; 改成这样就可以了，谢谢众位兄台的热心帮助哦！~

[s290305915]

要在释放对象前执行保存操作