//TODO:传Sql语句，需要改进
private void Search_Click(object sender, EventArgs e)
{
#region 条件搜索公告
if (CheckCookie())
{
StringBuilder builder = new StringBuilder();
if (!poster.Text.Equals(""))
{
builder.Append("[poster] LIKE '%");
builder.Append(poster.Text);
builder.Append("%'");
}
if (!title.Text.Equals(""))
{
if (builder.Length > 0)
{
builder.Append(" AND ");
}
builder.Append("[title] LIKE '%");
builder.Append(title.Text);
builder.Append("%'");
}
if (!postdatetimeStart.SelectedDate.ToString().Equals(""))
{
if (builder.Length > 0)
{
builder.Append(" AND ");
}
builder.Append("[starttime] >= '");
builder.Append(postdatetimeStart.SelectedDate.ToString());
builder.Append("'");
}
if (!postdatetimeEnd.SelectedDate.AddDays(1).ToString().Equals(""))
{
if (builder.Length > 0)
{
builder.Append(" AND ");
}
builder.Append("[starttime] <= '");
builder.Append(postdatetimeEnd.SelectedDate.ToString());
builder.Append("'");
}
if (builder.Length > 0)
{
builder.Insert(0, " WHERE ");
}
DataGrid1.BindData(Announcements.GetAnnouncementsByCondition(builder.ToString()));
}
#endregion
}