下面是我的文本框按钮单击验证代码。即，文本框的IF值已保存在数据库中，然后显示警告，否则正常按钮事件应该起作用。为此，我尝试了下面的代码：
Default.aspx页面
var newresult = {"_header": {
"nvPairs": [
"status",
0,
"QTime",
3,
"params",
{
"nvPairs": [
"hl.fragsize",
"100000",
"hl.simple.pre",
"<em>",
"hl.fl",
"name",
"wt",
"javabin",
"hl.maxAnalyzedChars",
"100000",
"hl",
"true",
"version",
"2",
"hl.highlightMultiTerm",
"true",
"hl.snippets",
"100",
"hl.useFastVectorHighlighter",
"true",
"q",
"harsha",
"hl.regex.slop",
"0.5",
"hl.regex.pattern",
"[-\\w ,/\n\\\"']*",
"hl.simple.post",
"</em>"
]
}
]
},
"_results": [
{
"id": "21",
"name": [
"asd asda fsdfsdfds harsha sadaks asdasd sad fsddsf dsfdsf dsf sdf dsdsf sdfdsf dsfdsf dsf fdsdfsd fdsfdsf dfdsfdsfds dsfsdf d f ds fdf df df dsfdsf dfdsf d fdsdf dfs harsha"
],
"_version_": 1508203924863058000
}
],
"_highlightingInfo": {
"nvPairs": [
"21",
{
"nvPairs": [
"name",
[
"asd asda fsdfsdfds <em>harsha</em> sadaks asdasd sad fsddsf dsfdsf dsf sdf dsdsf sdfdsf dsfdsf dsf fdsdfsd fdsfdsf dfdsfdsfds dsfsdf d f ds fdf df df dsfdsf dfdsf d fdsdf dfs <em>harsha</em>"
]
]
}
]
},
"_highlighting": {
"21": {
"name": [
"asd asda fsdfsdfds <em>harsha</em> sadaks asdasd sad fsddsf dsfdsf dsf sdf dsdsf sdfdsf dsfdsf dsf fdsdfsd fdsfdsf dfdsfdsfds dsfsdf d f ds fdf df df dsfdsf dfdsf d fdsdf dfs <em>harsha</em>"
]
}
},
"elapsedTime": 19,
"response": {
"nvPairs": [
"responseHeader",
{
"nvPairs": [
"status",
0,
"QTime",
3,
"params",
{
"nvPairs": [
"hl.fragsize",
"100000",
"hl.simple.pre",
"<em>",
"hl.fl",
"name",
"wt",
"javabin",
"hl.maxAnalyzedChars",
"100000",
"hl",
"true",
"version",
"2",
"hl.highlightMultiTerm",
"true",
"hl.snippets",
"100",
"hl.useFastVectorHighlighter",
"true",
"q",
"harsha",
"hl.regex.slop",
"0.5",
"hl.regex.pattern",
"[-\\w ,/\n\\\"']*",
"hl.simple.post",
"</em>"
]
}
]
},
"response",
[
{
"id": "21",
"name": [
"asd asda fsdfsdfds harsha sadaks asdasd sad fsddsf dsfdsf dsf sdf dsdsf sdfdsf dsfdsf dsf fdsdfsd fdsfdsf dfdsfdsfds dsfsdf d f ds fdf df df dsfdsf dfdsf d fdsdf dfs harsha"
],
"_version_": 1508203924863058000
}
],
"highlighting",
{
"nvPairs": [
"21",
{
"nvPairs": [
"name",
[
"asd asda fsdfsdfds <em>harsha</em> sadaks asdasd sad fsddsf dsfdsf dsf sdf dsdsf sdfdsf dsfdsf dsf fdsdfsd fdsfdsf dfdsfdsfds dsfsdf d f ds fdf df df dsfdsf dfdsf d fdsdf dfs <em>harsha</em>"
]
]
}
]
}
]
}
};
var highlight = {};
$.each(newresult._highlighting, function(i, hitem){
var match = hitem.name[0].match(/<em>(.*?)<\/em>/);
// var match = hitem.description[0].match(/elegant/g);
console.log("match "+match);
highlight[i] = match[1];
});
var res1 = newresult._highlighting;
var results;
var result;
for(var res2 in res1)
{
var hlight = res1[res2].name;
results= highlight[res2];
}
$.each(hlight, function(ix, items){
var word = results;
result = items.replace(new RegExp(word, 'g'),word);
});
//var res = newresult.response.nvPairs[5].nvPairs[1].nvPairs[1];
//var word ="harsha";
//var result = res[0].replace(new RegExp(word, 'g'), '<em>harsha</em>');
$("body").append('<div>' + result + '</div>');
});
Ajax JQuery代码：
<asp:Label ID="lblGuidId" runat="server" Text='<%# Bind("RequestID") %>'></asp:Label>
<asp:TextBox ID="txtBarcodeNumber" runat="server" MaxLength="11" Width="230px" Text='<%# Bind("BarcodeNo") %>' Display="None"></asp:TextBox>
<asp:Button ID="btnBar" runat="server" Text="Save" CommandName="Update"
OnClientClick="EnableDdlCompany();saveButtonClick();"
CommandArgument="Save" return false;"/>
c＃code：
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript" src="http://cdn.jsdelivr.net/json2/0.1/json2.js"></script>
<script type="text/javascript">
$(document).ready(function () {
$("[id*=btnBar]").bind("click", function () {
var chk = {};
chk.requestID = $("[id*=lblGuidId]").text();
alert(chk.requestID);
chk.barCode = $("[id*=txtBar]").val();
alert(chk.barCode);
$.ajax({
type: 'POST',
url: "ChatBoxDemo.aspx/SaveUser",
data: '{chk: ' + JSON.stringify(chk) + '}',
contentType: 'application/json; charset=utf-8',
dataType: 'json',
success: function (data) {
alert(JSON.stringify(data));
var val = data.d;
alert(val);
if (val == true) {
alert("Barcode No. alredy exist");
}
else {
//normal function
}
},
error: function (data) {
alert(data.responseText);
},
});
return false;
});
});
</script>
当我单击按钮（public static bool IsValidBarcodeTest(Guid? requestID, string barCode)
{
bool result = false;
string strcon = ConfigurationManager.ConnectionStrings["MasterDB"].ConnectionString;
SqlConnection con = new SqlConnection(strcon);
SqlCommand cmd = new SqlCommand("Invoice.usp_tbl_Request_Select_CheckDuplicateBarcode_Test", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@RequestID", requestID);
cmd.Parameters.AddWithValue("@BarcodeNo", barCode);
cmd.Connection = con;
con.Open();
result = Convert.ToBoolean(cmd.ExecuteScalar());
con.Close();
return result;
}
public class Check
{
public Check() { }
private Guid? requestID;
private string barCode;
public Guid? RequestId
{
get { return requestID; }
set { requestID = value; }
}
public string BarCode
{
get { return barCode; }
set { barCode = value; }
}
}
[WebMethod]
[ScriptMethod]
public static bool SaveUser(Check chk)
{
bool a = false;
a = IsValidBarcodeTest(chk.RequestId, chk.BarCode);
return a;
}
）时，此Ajax JQuery可以正常工作，但在此验证检查之后，我希望按钮应该执行其他事件，例如 CommandArgument ， CommandName < / strong>， OnCLientClick
但是当我的IF条件转到else部分时，不会触发这些事件。
请建议我在代码中更改哪些内容以使其按预期工作。
请注意，我无法更改按钮上定义的事件。我是asp.net的新人。提前致谢。
答案 0 :(得分：0)
您永远不会为btnBar定义OnClick服务器端事件。目前它只执行客户端代码，永远不会命中服务器端代码。如果你希望它根据你的jQuery调用的结果执行，那么你将做__doPostBack（“btnBar”）;
之类的事情。