Question

在C#中如果弹出一个有打开保存和另存为功能的对话框？

急着用，知道的回答一下啊，先谢了！！
我要的效果是 打开，保存和另存为功能在一个对话框上，当点击打开时就打开了一个制定的文件，点击保存时即可保存到指定的路径，另存为类似！

Answer 1

写个例子给你。
private void Button1_Click(object sender, EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.InitialDirectory = "C:";
ofd.Filter = "BMP位图文件(*.bmp)|*.bmp|JEPG(*.JPG;*.JPEG;*.JPE;*.JFIF)|*.JPG;*.JPEG;*.JPE;*.JFIF|GIF(*.GIF)|*.GIF|TIFF(*.TIF,*.TIFF)|*.TIF,*.TIFF|PNG(*.PNG)|*.PNG|ICO(*.ICO)|*.ICO|所以文件(*.*)|*.*";
ofd.FilterIndex = 2;
ofd.RestoreDirectory = true;
if (ofd.ShowDialog() == DialogResult.OK)
{
// 点击确定后写你需要干的事
}
else
{
return;
}
}

private void Button2_Click(object sender, EventArgs e)
{
SaveFileDialog sf = new SaveFileDialog();
sf.InitialDirectory = "C:";
sf.Filter="BMP位图文件(*.bmp)|*.bmp|JEPG(*.JPG;*.JPEG;*.JPE;*.JFIF)|*.JPG;*.JPEG;*.JPE;*.JFIF|GIF(*.GIF)|*.GIF|TIFF(*.TIF,*.TIFF)|*.TIF,*.TIFF|PNG(*.PNG)|*.PNG|ICO(*.ICO)|*.ICO|所以文件(*.*)|*.*";
sf.FilterIndex = 2;
if (sf.ShowDialog() == DialogResult.OK)
{
// DO YOUR THINGS
string saveName = sf.FileName;
}
}

Answer 2

SystemDbOperator sysDbOperator = new SystemDbOperator();
DataSet tmpDS = sysDbOperator.Query(strSQL);

if (!Util.IsNull(tmpDS)) {
string strFilePath = HttpContext.Current.Request.MapPath("Attach Files/") + fileName;//路径根据实际情况而定
if (!File.Exists(strFilePath)) {
strScript = "<script>alert('该文件不存在!');window.close()</script>";
ClientScript.RegisterStartupScript(this.GetType(), "提示", strScript);
return;
}

//打开文件流读取文件DownLoadPage.aspx?FileName = " + fileName;
FileStream fs = new FileStream(strFilePath, FileMode.Open);

string OldFileName = tmpDS.Tables[0].Rows[0]["FileName"].ToString();
//将文件信息以字节流方式保存到数组
byte[] bytes = new byte[(int)fs.Length];
fs.Read(bytes, 0, bytes.Length);
fs.Close();

//向页面输出字节流 实现下载效果
Response.ContentType = "application/octet-stream";
Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(OldFileName));
Response.BinaryWrite(bytes);
Response.End();

Answer 3

// 打开文件对话框
OpenFileDialog o = new OpenFileDialog();
o.ShowDialog();

// 另存文件对话框
SaveFileDialog s = new SaveFileDialog();
s.ShowDialog();

Answer 4

可以自定义
或者调用com组件（microsoft common dialog control）
用common dialog 的 showopen ,showsave 等~