我有這個代碼
private void button1_Click(object sender, EventArgs e)
{
//===========> Getting error here <==================//
textBox2.Text = CallFunc(textBox1.Text);
}
static async Task<string> CallFunc(string str)
{
Program p = new Program();
string s = await p.DocumentToText(str);
return s;
}
public async Task<string> DocumentToText(string path)
{
string txt = String.Empty;
AmazonTextractClient client = new AmazonTextractClient(key, Skey, reg);
//some AWS functionality
Thread.Sleep(2000);
txt = "hello world";
return txt;
}
我將此 button1_Click 函式更改為
private void button1_Click(object sender, EventArgs e)
{
var d = await CallFunc(textBox1.Text);
textBox2.Text = d.Results();
}
正如這個問題的一個答案所推薦的那樣
uj5u.com熱心網友回復：
添加async在button1_Click事件
private async void button1_Click(object sender, EventArgs e)
{
var d = await CallFunc(textBox1.Text);
textBox2.Text = d;
}
uj5u.com熱心網友回復：
在 button1_Click 方法中使用異步任務
private async Task button1_Click(object sender, EventArgs e)
{
var d = await CallFunc(textBox1.Text);
textBox2.Text = d.Results();
}
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