[英]Viewbag value not show in ASP.NET MVC view
我正在使用 C# 和 ASP.NET MVC 並嘗試將數據從 controller 傳遞到視圖。 當我調試數據顯示在 viewbag 中但未顯示在視圖中時。 錯誤未定義。 我不知道為什么這段代碼會顯示錯誤。
這是屏幕截圖:
C# 代碼:
public JsonResult mselectCOACodes(string gl_code)
{
ViewBag.mainCode = gl_code.Substring(0, 2) + "-00-00-0000";
if (ViewBag.mainCode != "")
{
ViewBag.mainDesc = _ICOA.mSelectChartofAccount(ViewBag.mainCode);
}
return Json("", JsonRequestBehavior.AllowGet);
}
jQuery:
<script type="text/javascript">
jQuery(document).ready(function ($) {
$("#txtvglcode").change(function () {
$.ajax({
type: "GET",
url: "/ChartofAccount/mselectCOACodes",
data: {
gl_code: $("#txtvglcode").val()
},
contentType: "application/json; charset=utf-8",
dataType: "json",
failure: function (response) {
alert(response.responseText);
},
error: function (response) {
alert(response.responseText);
}
});
});
});
</script>
看法
<div class="col-sm-6">
<div class="col-sm-3">
<div class="form-group">
<b>Main Code</b>
<div class="form-line">
<input type="text" id="txtglmainCode"
value="@ViewBag.mainCode" class="form-control" placeholder="" />
</div>
</div>
</div>
<div class="col-sm-3">
<div class="form-group">
<b>Description</b>
<div class="form-line">
<input type="text" id="txtmainDescription"
value="@ViewBag.mainDesc" class="form-control" placeholder="" />
</div>
</div>
</div>
</div>
首先,不要使用@ViewBag
來存儲輸入值,因為您無法在 C# 代碼中訪問它的值。
這是 C# 代碼:
public JsonResult mselectCOACodes(string gl_code)
{
string mainCode = gl_code.Substring(0, 2) + "-00-00-0000";
if (mainCode != "")
{
string mainDesc = _ICOA.mSelectChartofAccount(ViewBag.mainCode);
}
return Json(mainDesc, JsonRequestBehavior.AllowGet);
}
這是 JQuery:
<script type="text/javascript">
jQuery(document).ready(function ($) {
$("#txtvglcode").change(function () {
$.ajax({
type: "GET",
url: "/ChartofAccount/mselectCOACodes",
data: {
gl_code: $("#txtvglcode").val()
},
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (mainDesc) {
$("#txtmainDescription").val(mainDesc);
},
failure: function (response) {
alert(response.responseText);
},
error: function (response) {
alert(response.responseText);
}
});
});
});
</script>
看法:
<div class="col-sm-6">
<div class="col-sm-3">
<div class="form-group">
<b>Main Code</b>
<div class="form-line">
<input type="text" id="txtglmainCode"
value="" class="form-control" placeholder="" />
</div>
</div>
</div>
<div class="col-sm-3">
<div class="form-group">
<b>Description</b>
<div class="form-line">
<input type="text" id="txtmainDescription"
value="" class="form-control" placeholder="" />
</div>
</div>
</div>
</div>
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