Question

在C#中怎么使用OpenFileDialog类，介绍几个简单的例子？请不要直接复制粘贴。

比如，在窗体里有一个picturebox，一个button,按button就能弹出对话框从本地为picturebox选资源，这个要怎么实现？

Answer 1

1、在工具箱里打打卡 对话框 拉一个OpenFileDialog到当前窗体 name为openFileDialog1
2、双击button按钮
private void button1_Click(object sender, EventArgs e)
{
this.openFileDialog1.Filter = "所有文件(*.*)|*.*|图片(*.gif)|*.gif|图片(*.png)|*.png";
this.openFileDialog1.Title = "请选择图片";
openFileDialog1.FileName = "";
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
pictureBox1.Load(openFileDialog1.FileName);
}
}

Answer 2

1. 导入命名空间using System.IO；Using System.Windows.Forms
2. 点击button触发事件：button_click
3. 事件里：OpenFileDialog dg=new OpenFileDialog();（实例化一个对话框）
dg.Filter ="*.JPG|*.JPG";（过滤，选出后缀为.JPG）
其实主要的也就是这两步

Answer 3

简单版本的

private void button1_Click(object sender, EventArgs e)
{
OpenFileDialog op = new OpenFileDialog();
string path="";
if (op.ShowDialog() == DialogResult.OK)
{
path = op.FileName;
}
pictureBox1.Load(path);

}

Answer 4

http://blog.sina.com.cn/s/blog_699e89df0100x44h.html
这是我写的一个winform例子，里面有，你自己看看。

Answer 5

OpenFileDialog diag = new OpenFileDialog();
diag.Filter = xlsFilter;
if (diag.ShowDialog() == DialogResult.OK) {
SensorParameterCollection coll = cfg.SensorParameters;
coll.Clear();
using (StreamReader sr = new StreamReader(diag.OpenFile())) {
string str = string.Empty;