復制代碼 代碼如下:
protected override void OnPreRender(EventArgs e)
{
base.OnPreRender(e);
RenderJS();
}
private void RenderJS()
{
if (!Page.ClientScript.IsClientScriptBlockRegistered(SCRIPT_ID))//如果還沒有注冊語句，則注冊
{
Page.ClientScript.RegisterClientScriptBlock(this.GetType(),SCRIPT_ID,SCRIPT_CONTENT);
}
}
private const string SCRIPT_ID = "5B7A061B93D546A7A2601D56A8738DB9";//自定義標識Guid
private const string SCRIPT_CONTENT = "script type=\"text/javascript\">\nvar CB4949501DA_checkDouble = function (data) {\nvar key = event.keyCode;\nif ((key 48 || key > 57) key != 46 key != 45) {\nreturn false;\n}\nelse {\nif (key == 46) {\nif (data.indexOf(\".\") != -1 || data.length == 0)\nreturn false;\n}\nelse if (key == 45) {\nif (data.indexOf(\"-\") != -1 || data.length != 0) {\nreturn false;\n}\n}\n}\nreturn true;\n}\nvar CB4949501DA_checkInt = function (data) {\nvar key = event.keyCode;\n\nif ((key 48 || key > 57) key != 45) {\nreturn false;\n}\nelse {\nif (key == 45) {\nif (data.indexOf(\"-\") != -1 || data.length != 0) {\nreturn false;\n}\n}\nelse {\nvar input = String.fromCharCode(key)\nvar intData = parseInt(data + input);\nif (intData > 2147483647 || intData -2147483648) {\nreturn false;\n}\n}\nreturn true;\n}\nreturn true;\n}\nvar span style="color:#ff0000;">CB4949501DA_checkLong /span>= function (data) {\nvar key = event.keyCode;\n\nif ((key 48 || key > 57) key != 45) {\nreturn false;\n}\nelse {\nif (key == 45) {\nif (data.indexOf(\"-\") != -1 || data.length != 0) {\nreturn false;\n}\n}\nelse {\nvar input = String.fromCharCode(key)\nvar longstrData = data + input\nif (longstrData.length > 19) {\nreturn false;\n}\n}\n}\nreturn true;\n}\n/script>\n";
再添加代碼去調用寫入的javascript函數：
復制代碼 代碼如下:
protected override void AddAttributesToRender(System.Web.UI.HtmlTextWriter writer)
{
base.AddAttributesToRender(writer);
writer.AddAttribute("onkeypress", "return span style="color:#ff0000;">CB4949501DA_checkLong/span>(this.value);");}
另外，引用文件是這樣的。
復制代碼 代碼如下:
if (!Page.ClientScript.IsClientScriptIncludeRegistered("引用js文件1"))//如果還沒有引用，則引用
{
Page.ClientScript.RegisterClientScriptInclude("引用js文件1", "JS/MYJS.JS");
}
生成的頁面查看源代碼效果如下：
復制代碼 代碼如下:
script src="JS/MYJS.JS" type="text/javascript">/script>
script type="text/javascript">
var CB4949501DA_checkDouble = function (data) {
var key = event.keyCode;
if ((key 48 || key > 57) key != 46 key != 45) {
return false;
}
else {
if (key == 46) {
if (data.indexOf(".") != -1 || data.length == 0)
return false;
}
else if (key == 45) {
if (data.indexOf("-") != -1 || data.length != 0) {
return false;
}
}
}
return true;
}
var CB4949501DA_checkInt = function (data) {
var key = event.keyCode;
if ((key 48 || key > 57) key != 45) {
return false;
}
else {
if (key == 45) {
if (data.indexOf("-") != -1 || data.length != 0) {
return false;
}
}
else {
var input = String.fromCharCode(key)
var intData = parseInt(data + input);
if (intData > 2147483647 || intData -2147483648) {
return false;
}
}
return true;
}
return true;
}
var CB4949501DA_checkLong = function (data) {
var key = event.keyCode;
if ((key 48 || key > 57) key != 45) {
return false;
}
else {
if (key == 45) {
if (data.indexOf("-") != -1 || data.length != 0) {
return false;
}
}
else {
var input = String.fromCharCode(key)
var longstrData = data + input
if (longstrData.length > 19) {
return false;
}
}
}
return true;
}
/script>
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