当下拉菜单onchange id传递到数据库并返回相应字段时
<div class="col-lg-4">
<fieldset class="form-group">
<label class="form-label" for="exampleInput">Domain Name</label>
@Html.DropDownList("DomainID", null, "--- Select Domain Name ---", new { @class = "select2-arrow" })
</fieldset>
</div>
返回的JSON值我们需要查看表中对应的字段。
<script>
$(document).ready(function () {
$("#DomainID").change(function () {
var id = $(this).val();
$("#example tbody tr").remove();
$.ajax({
type: 'POST',
url: '@Url.Action("ViewModules")',
dataType: 'json',
data: { id: id },
success: function (data) {
var items = '';
$.each(data, function (i, item) {
var rows = "<tr>"
+ "<td>" + item.ModuleName + "</td>"
+ "<td>" + item.Url + "</td>"
+ "</tr>";
$('#example tbody').append(rows);
});
},
error: function (ex) {
var r = jQuery.parseJSON(response.responseText);
alert("Message: " + r.Message);
alert("StackTrace: " + r.StackTrace);
alert("ExceptionType: " + r.ExceptionType);
}
});
return false;
})
});
</script>
表格代码
<table id="example" class="display table table-bordered" cellspacing="0" width="100%;">
<thead>
<tr>
@*<th>S#</th>*@
<th>Module Name</th>
<th>Url</th>
@*<th>Roles</th>
<th>Action</th>*@
</tr>
</thead>
<tbody>
</tbody>
</table>
Controller 代码:
[HttpPost]
[MyExceptionHandler]
public ActionResult ViewModules(int id)
{
Domain_Bind();
dynamic mymodel = new ExpandoObject();
userType type = new userType();
mymodel.viewRoleModules = type.GetRoleModulesViews(id);
return Json(mymodel, JsonRequestBehavior.AllowGet);
}
在上面的代码中,它返回 3 个数组值 return Json(mymodel, JsonRequestBehavior.AllowGet);
我们已传递给 JavaScript,但它显示未定义
在上图中,您可以看到有 3 个值,但我无法传递行内存在的 item.ModuleName
。
当函数成功时,该值也显示未定义。
public List<ViewRoleModules> GetRoleModulesViews(int id)
{
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["Admin"].ConnectionString))
{
List<ViewRoleModules> EmpList = new List<ViewRoleModules>();
SqlCommand com = new SqlCommand("MEDEIL_Modules_SelectDomainModules", conn);
com.CommandType = CommandType.StoredProcedure;
com.Parameters.AddWithValue("@DomainID", id);
SqlDataAdapter da = new SqlDataAdapter(com);
DataTable dt = new DataTable();
conn.Open();
da.Fill(dt);
conn.Close();
foreach (DataRow dr in dt.Rows)
{
EmpList.Add(
new ViewRoleModules
{
ModuleID = Convert.ToInt32(dr["ModuleID"]),
CompanyTypeID = Convert.ToInt32(dr["CompanyTypeID"]),
DomainID = Convert.ToInt32(dr["DomainID"]),
ParentModuleID = Convert.ToInt32(dr["ParentModuleID"]),
ModuleName = Convert.ToString(dr["ModuleName"]),
FolderName = Convert.ToString(dr["FolderName"] == DBNull.Value ? null : dr["FolderName"].ToString()),
Url = Convert.ToString(dr["Url"]),
TabOrder = Convert.ToInt32(dr["TabOrder"]),
Style = Convert.ToString(dr["Style"]),
Status = Convert.ToString(dr["Status"]),
IsTab = Convert.ToString(dr["IsTab"]),
ApprovalProcess = Convert.ToString(dr["ApprovalProcess"]),
CreatedBy = Convert.ToInt32(dr["CreatedBy"] == DBNull.Value ? null : dr["CreatedBy"].ToString()),
CreatedDate = Convert.ToDateTime(dr["CreatedDate"]),
ModifiedBy = Convert.ToInt32(dr["ModifiedBy"] == DBNull.Value ? null : dr["ModifiedBy"].ToString()),
ModifiedDate = Convert.ToDateTime(dr["ModifiedDate"] == DBNull.Value ? null : dr["ModifiedDate"].ToString())
}
);
}
return EmpList;
}
}
最佳答案
试试这个
public ActionResult ViewModules(int id)
{
Domain_Bind();
userType type = new userType();
List<ViewRoleModules> EmpList = type.GetRoleModulesViews(id);
return Json(EmpList, JsonRequestBehavior.AllowGet);
}
提供返回类型而不是使用动态
关于javascript - 如何使用asp.net mvc从返回JSON值中查看表,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/47667937/