在C#開(kāi)發(fā)過(guò)程中，免不了寫(xiě)一些JS，其實(shí)做后端開(kāi)發(fā)的，本身不擅長(zhǎng)寫(xiě)JS，干脆總結(jié)一下，方便自己也方便別人，分享給大家。呵呵~~
1.按鈕前后臺(tái)事件
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button"
OnClientClick="alert('客房端驗(yàn)證，阻止向服務(wù)器端提交');return false;" />
2.注冊(cè)相關(guān)事件：onblur,onclick,onchange
this.TextBox1.Attributes.Add("onchange",
"alert('數(shù)據(jù)被改動(dòng)，現(xiàn)檢查輸入是否符合規(guī)則');");
3.注冊(cè)相關(guān)屬性：
this.TextBox1.Attributes.Add("readOnly", "true");
4.引入JS文件
前臺(tái)HTML頁(yè)面：
<script type="text/javascript" src="JScript.js" language="javascript"></script>
<script type="text/javascript" language="javascript">
function fn_Name()
{
alert("JS");
}
</script>
后臺(tái)cs頁(yè)面：
this.RegisterClientScriptBlock("jsFile",
"<script type='text/javascript' src='JScript.js' language='javascript'></script>");
[code]
5.點(diǎn)擊按鈕時(shí) 相關(guān)欄位 非空判斷
[code]
function checkEmpty(txtObj,msgShow)
{
if(txtObj.value == "")
{
alert(msgShow);
return false;
}
}
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button"
OnClientClick="return checkEmpty(TextBox1,'TextBox1 不能為空')" />
6.通過(guò)ChcekBox的是否點(diǎn)選來(lái)控制其相對(duì)應(yīng)的TextBox 是否可輸入
function chkTextBox(chkObj,txtObj)
{
if(chkObj.checked==true)
{
txtObj.value = "";
txtObj.readOnly = false;
txtObj.focus();
}
if(chkObj.checked == false)
{
txtObj.value = "";
txtObj.readOnly = true;
}
}
<input id="Checkbox1" type="checkbox" onclick="chkTextBox(Checkbox1,TextBox1)" />
7.傳值到模態(tài)窗口 并得到傳回的值
var EnCodeQueryName = escape(Name);
var strPara = "'dialogWidth: 400px;dialogHeight: 400px;dialogLeft: 300px;dialogTop: 200px;toolbar: no;menubar: no;resizable: yes;location: no;status: no;scrollbars= no'";
var ReturnInfo = window.showModalDialog("QryName.aspx?&Name="+EnCodeQueryName +"&QueryID="+QueryType+"",'',strPara);
if(ReturnInfo !=null)
{
var arrayReturnInfo = ReturnInfo .split("@");
document.all.drpID.value = arrayReturnInfo[1];
document.all.txtName.value= arrayReturnInfo[2];
}
8.彈出JS的確認(rèn)對(duì)話框,并根據(jù)確認(rèn)結(jié)果 觸發(fā)后臺(tái)相關(guān)操作
if(confirm('確認(rèn)如何嗎?'))
{
document.all.hidbtn_Submit.click();
}
else
{
document.all.hidbtn_Cancel.click();
}
HTML頁(yè)面相關(guān)代碼：
<input id="hidbtn_Submit" type="button" value="確認(rèn)修改"
style="display:none;"
onserverclick="hidbtn_Submit_ServerClick"
runat="server" />
9.添加頁(yè)面對(duì)快捷鍵的響應(yīng),如 按F2時(shí) 進(jìn)行新增按鈕的操作等
#region 添加頁(yè)面對(duì)快捷鍵的響應(yīng)
string strJS_ShortKey = "<script language='javascript' type='text/javascript' > ";
strJS_ShortKey += " document.onkeydown=shortKeyDown; ";
strJS_ShortKey += " function shortKeyDown() ";
strJS_ShortKey += " { ";
// 新增
if (this.ButtonCtl1.ImgBtn_AddFamily.Visible)
{
string btnInsertCID = this.ButtonCtl1.ImgBtn_Insert.ClientID.Trim();
//F2 - 113
strJS_ShortKey += " if(event.keyCode=='113') ";
strJS_ShortKey += " { ";
strJS_ShortKey += " document.all('" + btnInsertCID + "').click();";
strJS_ShortKey += " event.keyCode= 0; ";
strJS_ShortKey += " event.returnValue = false; ";
strJS_ShortKey += " return false; ";
strJS_ShortKey += " } ";
}
// 修改
if (this.ButtonCtl1.ImgBtn_Edit.Visible)
{
string btnEditCID = this.ButtonCtl1.ImgBtn_Edit.ClientID.Trim();
//F3 - 114
strJS_ShortKey += " if(event.keyCode=='114') ";
strJS_ShortKey += " { ";
strJS_ShortKey += " document.all('" + btnEditCID + "').click();";
strJS_ShortKey += " event.keyCode= 0; ";
strJS_ShortKey += " event.returnValue = false; ";
strJS_ShortKey += " return false; ";
strJS_ShortKey += " } ";
}
strJS_ShortKey += " } ";
//注冊(cè)事件
Page.RegisterStartupScript("shortKey", strJS_ShortKey);
#endregion
10.彈出的提示 分行顯示
alert('aaa \r\n bbb \r\n ccc');
如果是在后臺(tái).cs文件中注冊(cè)
則需要
string strAlertContent = "aaa"+" \\r\\n ";
strAlertContent += "bbb" +" \\r\\n ";
11.點(diǎn)擊GridView上的某一行時(shí),行首列處的RadioButton處于選中狀態(tài),同時(shí)保存相關(guān)值在隱藏欄位
//用查詢(xún)得的數(shù)據(jù)集進(jìn)行綁定
if (dt.Rows.Count > 0)
{
//綁定
this.gv_InfoFromSendModule.DataSource = dt;
this.gv_InfoFromSendModule.DataBind();
//確定按鈕顯示
this.btn_OK.Visible = true;
this.txthid_RowCount.Text = dt.Rows.Count.ToString();
}
//GridView的RowDataBound
protected void gv_InfoFromSendModule_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowIndex < 0)
return;
e.Row.Attributes.Add("onclick", "radButton('" + e.Row.RowIndex.ToString() + "','" + e.Row.Cells[1].Text.Trim() + "');");
//RadioButton rad = (RadioButton)e.Row.Cells[0].FindControl("rad_Select");
//rad.Attributes.Add("onclick", "radButton('"+e.Row.RowIndex.ToString()+"','"+ e.Row.Cells[1].Text.Trim()+"');");
}
//行上所綁定的JS
function radButton(rowIndex,rowGUID)
{
//gv_InfoFromSendModule$ctl02$rad_Select
var rowCount = parseInt(document.all.txthid_RowCount.value)+2;
for(var i=2;i<rowCount;i++)
{
var tmpName;
if(i<10)
{
tmpName = "gv_InfoFromSendModule$ctl0"+i+"$rad_Select";
}
else
{
tmpName = "gv_InfoFromSendModule$ctl"+i+"$rad_Select";
}
//取得對(duì)應(yīng)的Radio對(duì)象
var tmpRadio = document.getElementById(tmpName);
//當(dāng)前選中 其他取消選中
if((i-2) == rowIndex)
{
tmpRadio.checked = true;
}
else
{
tmpRadio.checked = false;
}
}
document.all.txthid_GUID.value = rowGUID;
}
12.去掉前后空格
function fn_Trim(obj)
{
if(obj==null)
{
return;
}
else
{
var oldStr = obj.value;
var newStr = oldStr.replace(/^\s+|\s+$/g,"");
obj.value = newStr;
}
}
13.TextBox文本內(nèi)容長(zhǎng)度判斷 看是否超過(guò)長(zhǎng)度 超過(guò)返回true
function fn_IsTooLong(obj,varLength)
{
if(obj==null)
{
return false;
}
else
{
var valueStr = obj.value;
var len = valueStr.match(/[^ -~]/g) == null ? valueStr.length : valueStr.length + valueStr.match(/[^ -~]/g).length ;
if(len > parseInt(varLength) )
{
return true;
}
else
{
return false;
}
}
}
