private void SearchButton_Click(object sender, EventArgs e)
{
int runFlag = 1;
if (SearchBox.Text == "")
{
ClassBackEnd.Book.Clear();
nPage = 1;
DataSheetLoad(1);
return;
}
NoResultTextBox.Hide();
AddBookButton.Hide();
ResultDataSheet.Rows.Clear();
lastState = ButtonState;
lastString = SearchBox.Text;
LoadGIFBox.Show();
if (SearchWorker.IsBusy)
{
runFlag = 0;
SearchWorker.CancelAsync();
}
if (runFlag != 0)
{
SearchWorker.RunWorkerAsync();
}
}
private void DataSheetLoad(int page)
{
ResultDataSheet.Rows.Clear();
ResultDataSheet.Hide();
if (ClassBackEnd.Book.Count == 0)
{
LoadGIFBox.Hide();
NoResultTextBox.Show();
AddBookButton.Show();
NextPbutton.Hide();
LastPButton.Hide();
JumpPTextBox.Hide();
PageTextBox.Hide();
DividePicture.Hide();
return;
}
else
{
NoResultTextBox.Hide();
AddBookButton.Hide();
NextPbutton.Show();
LastPButton.Show();
JumpPTextBox.Show();
PageTextBox.Show();
DividePicture.Show();
}
int start = (nPage - 1) * 10;
int end = nPage * 10;
if (nPage == maxPage)
{
end = ClassBackEnd.Book.Count;
}
for (int i = start; i < end; i++)
{
var c = ClassBackEnd.Book[i];
DataGridViewRow row = (DataGridViewRow)ResultDataSheet.RowTemplate.Clone();
int index = ResultDataSheet.Rows.Add(row);
ResultDataSheet.Rows[index].Cells[0].Value = c.Bookisbn;
ResultDataSheet.Rows[index].Cells[1].Value = c.Bookname;
ResultDataSheet.Rows[index].Cells[2].Value = c.Author;
ResultDataSheet.Rows[index].Cells[3].Value = c.Publisher;
ResultDataSheet.Rows[index].Cells[4].Value = "详情";
}
LoadGIFBox.Hide();
ResultDataSheet.Show();
ResultDataSheet.ClearSelection();
ResultDataSheet.Columns[4].DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;
JumpPTextBox.Text = nPage.ToString();
PageTextBox.Text = maxPage.ToString();
}
