ASP.NET CheckBoxList ควบคุม
การกำหนดและการใช้งาน
CheckBoxList ควบคุมใช้เพื่อสร้างกลุ่มตัวเลือกเช็คบอกที่สามารถเลือกหลายตัว
ตัวเลือกที่มีใน CheckBoxList ควบคุมทุกตัวเลือกนั้นมีการกำหนดโดยองค์ประกอบ ListItem!
คำเตือน:ควบคุมนี้สนับสนุนการบอกความหมายข้อมูล!
แอตทริบิวต์
| แอตทริบิวต์ | บทบาท | .NET |
|---|---|---|
| CellPadding | จำนวนพิกเซลระหว่างเส้นขอบเซลล์และสาระในเซลล์ | 1.0 |
| CellSpacing | จำนวนพิกเซลระหว่างเซลล์ตาราง | 1.0 |
| RepeatColumns | จำนวนช่องที่ใช้ในการแสดงกลุ่มตัวเลือกเช็คบอก | 1.0 |
| RepeatDirection | กำหนดว่ากลุ่มตัวเลือกเช็คบอกจะซ้ำตรงแนวน้ำเสียงหรือตรงแนวตั้ง | 1.0 |
| RepeatLayout | การจัดลำดับของกลุ่มตัวเลือกเช็คบอก | 1.0 |
| runat | กำหนดว่าควบคุมนี้เป็นควบคุมเซิร์ฟเวอร์ จะต้องตั้งค่าเป็น "server" | 1.0 |
| TextAlign | ข้อความปรากฏบนฝั่งหนึ่งของตัวเลือกเช็คบอก | 1.0 |
ListControl มาตรฐาน属性
AppendDataBoundItems, AutoPostBack, CausesValidation, DataTextField, DataTextFormatString, DataValueField, Items, runat, SelectedIndex, SelectedItem, SelectedValue, TagKey, Text, ValidationGroup, OnSelectedIndexChanged
ListControl ควบคุมรวมถึงความสามารถพื้นฐานทั้งหมดของควบคุมรายการ ListControl รวมถึงควบคุมที่สืบทอดมาจากควบคุมนี้ คือ: CheckBoxList, DropDownList, ListBox และ RadioButtonList ควบคุม。
పూర్తి వివరాలు కోరుకున్నట్లయితే, దయచేసి పరిశీలించండి ListControl มาตรฐาน属性.
వెబ్ కంట్రోల్స్ ప్రామాణిక అత్యాధికారాలు
AccessKey, Attributes, BackColor, BorderColor, BorderStyle, BorderWidth, CssClass, Enabled, Font, EnableTheming, ForeColor, Height, IsEnabled, SkinID, Style, TabIndex, ToolTip, Width
పూర్తి వివరాలు కోరుకున్నట్లయితే, దయచేసి పరిశీలించండి వెబ్ కంట్రోల్స్ ప్రామాణిక అత్యాధికారాలు.
కంట్రోల్స్ ప్రామాణిక అత్యాధికారాలు
AppRelativeTemplateSourceDirectory, BindingContainer, ClientID, Controls, EnableTheming, EnableViewState, ID, NamingContainer, Page, Parent, Site, TemplateControl, TemplateSourceDirectory, UniqueID, Visible
పూర్తి వివరాలు కోరుకున్నట్లయితే, దయచేసి పరిశీలించండికంట్రోల్స్ ప్రామాణిక అత్యాధికారాలు.
ఉదాహరణ
- CheckBoxList
- ఈ ఉదాహరణలో, మేము .aspx ఫైల్లో CheckBoxList కంట్రోల్ నిర్వహించాము. ఆపై మేము SelectedIndexChanged ఇవెంట్ కొరకు ఇవెంట్ హాండ్లర్ సృష్టించాము. ఈ ఎంపిక జాబితాలో ఆరు చెక్ బాక్సులు ఉన్నాయి. వినియోగదారుడు ఏదైనా ఒకదానిని ఎంచుకున్నప్పుడు, పేజీ సర్వర్కు ప్రత్యర్థించబడుతుంది, మరియు Check ఉదాహరణ అమలు అవుతుంది. ఈ ఉదాహరణ కంట్రోల్స్ యొక్క Items సమూహాన్ని పరిశీలిస్తుంది, మరియు ప్రతి ఒక్క అంశం యొక్క Selected అత్యాధికారాన్ని పరీక్షిస్తుంది. ఎంచిన అంశం లేబుల్ కంట్రోల్లో ప్రదర్శించబడుతుంది.
