protected void TabContainer1_ActiveTabChanged(object sender, EventArgs e) { if (TabContainer1.ActiveTabIndex == 1) { //初始化Autocomplete控件 string[] source = { "Apple", "Banana", "Cherry", "Date" }; txtSearch1.AutoCompleteMode = AutoCompleteMode.Suggest; txtSearch1.AutoCompleteSource = AutoCompleteSource.CustomSource; txtSearch1.AutoCompleteCustomSource.AddRange(source); } }