private async void pictureBoxFind_Click(object sender, EventArgs e)
{
pictureBoxFind.Enabled = false;//防止多次点击
string bookName = uiTextBoxName.Text;
_spiderController = new SpiderController(bookName);
if (bookName == "")
{
MessageBox.Show("Please input book name before searching", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
_bookHtmlContents = new List <List <SpiderController.BookHtmlContent> > {
(List <SpiderController.BookHtmlContent>) await _spiderController.ReadNextAsync()
};
int bookNo = 1;
foreach (var item in _bookHtmlContents[_pageCount++])
{
uiDataGridViewBookInfo.AddRow(bookNo++.ToString(), item.Title, item.Rate, item.Subjects);
}
pictureBoxFind.Enabled = true; // 恢复再次查询按钮
pictureBoxNext.Enabled = _spiderController.HasNext; // 可以点击下一页如果有下一页
}
public void Test1()
{
Assert.DoesNotThrowAsync(async() => await spider.ReadNextAsync());
Assert.AreEqual(spider.HasNext, true);
}
private async void pictureBoxNext_Click(object sender, EventArgs e)
{
//if (!pictureBoxFind.Enabled) {//只有当搜索工作完成了以后，才允许点击下一栏
//DataTable dt = new DataTable();
//DataTable dt = GetDgvToTable(uiDataGridViewBookInfo);
//dtStack.Push(dt);
uiDataGridViewBookInfo.Rows.Clear();
//try {
if (_pageCurrentNo == _pageCount - 1)
{
_bookHtmlContents.Add((List <SpiderController.BookHtmlContent>) await _spiderController.ReadNextAsync());//继续加载下一个界面
int bookNo = 1;
++_pageCount;
foreach (var item in _bookHtmlContents[++_pageCurrentNo])
{
uiDataGridViewBookInfo.AddRow(bookNo++.ToString(), item.Title, item.Rate, item.Subjects);
}
}
else
{
++_pageCurrentNo;
for (int i = 0; i < _bookHtmlContents[_pageCurrentNo].Count; ++i)
{
var item = _bookHtmlContents[_pageCurrentNo][i];
uiDataGridViewBookInfo.AddRow((i + 1).ToString(), item.Title, item.Rate, item.Subjects);
}
}
pictureBoxBefore.Enabled = true; // 允许点击前一页
pictureBoxNext.Enabled = _spiderController.HasNext; // 是否还有下一页
//}
//catch (Exception error) {
// MessageBox.Show(error.Message, "Error");
//}
//}
}