如何让openFileDialog只能打开一种类型的文件,如只能打开(txt)类型的文件?在线等待!!! 如何让openFileDialog只能打开一种类型的文件,如只能打开(txt)类型的文件?在线等待!!! 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 设置Filter 属性protected void button1_Click(object sender, System.EventArgs e){ Stream myStream; OpenFileDialog openFileDialog1 = new OpenFileDialog(); openFileDialog1.InitialDirectory = "c:\\" ; openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*" ; openFileDialog1.FilterIndex = 2 ; openFileDialog1.RestoreDirectory = true ; if(openFileDialog1.ShowDialog() == DialogResult.OK) { if((myStream = openFileDialog1.OpenFile())!= null) { // Insert code to read the stream here. myStream.Close(); } }} C#序列化后多了一个__type属性,怎么把这个属性去掉? 从文本框取数字,如果文本框为空,就令其为零,如何处理最简洁经典呢? c#界面刷新几个lable显示出来的时间不相同 wcf 客户端 如何 动态的联接 wcf 服务器呢 100分求解 如何查看类库中某个类的具体实现过程的源代码?"转到定义"只能看到这些 ListItem的问题 请问:如何看到C#文件的设计界面 如何把字符串16进制转化成2进制Byte[] 请大家帮忙!谢谢! 利用C#新建ppt并添加 animation 对象,设置animation的属性等 关于如何写上传后文件“摘要”内容?? 问一下,C#中变量生存期的问题
protected void button1_Click(object sender, System.EventArgs e)
{
Stream myStream;
OpenFileDialog openFileDialog1 = new OpenFileDialog(); openFileDialog1.InitialDirectory = "c:\\" ;
openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*" ;
openFileDialog1.FilterIndex = 2 ;
openFileDialog1.RestoreDirectory = true ; if(openFileDialog1.ShowDialog() == DialogResult.OK)
{
if((myStream = openFileDialog1.OpenFile())!= null)
{
// Insert code to read the stream here.
myStream.Close();
}
}
}