AJax calls not working in mvc

aditya immadi

10y822.NET

hai all,while i m calling ajax calls i not able to call methos in my controller here is my code

ViewCompanyProfile

UsersDAL obj = new UsersDAL();

List CompanyName = new List();

DataTable dtCompanyDetails = obj.ShowCompany();

foreach (DataRow row in dtCompanyDetails.Rows)

{

CompanyName.Add(new SelectListItem { Value = row["CompanyId"].ToString(), Text = row["CompanyName"].ToString() });

}

@using (Html.BeginForm())

{

@Html.ValidationSummary(true)

Select Company

@Html.DropDownListFor(Model => Model.CompanyName,CompanyName ,"Select", new {@id="Company_Name",@onchange="ShowCompany(this)" })

}

and in my controller

public ActionResult ViewCompanyProfile()

{

return View();

}

[HttpPost]

public ActionResult ShowCompany(int CompanyId)---------This one is not calling

{

DataTable dt = _objDAL.GetShowCompany(CompanyId);

int rowcount = dt.Columns.Count;

string[] strarray=new string[rowcount];

for (int i = 0; i < rowcount; i++)

{

strarray[i] = dt.Rows[0][i].ToString();

}

return Json(strarray,JsonRequestBehavior.AllowGet);

}

any suggestions are highly appreaciated

TIA

4 Replies

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Pawan Vaish10y ago
Hi,
The error is in below highlighted text -
document.getElementById("table")
Here you are finding a html element by its id and setting its inner html property.
The error you got while inspecting is because of above line. If the element is not present on the page then it will return null and you can't set the property of null element.
Make sure that you have a html element with id tableon your page.
+1
aditya immadi10y ago
Thanks for your rply sir...I tried that one also sir,but still my action method is not calling...if i inspect i get the error like cannot set the property innerHTMl off Null.i think if my action method calls then it wont be null then i ll not get like this..
0
Ravi Patel10y ago
Hi,
you can try this also
create viewModel class which contain CompanyId property
public class CompanyVm
{
public int CompanyId { get; set; }
}
[HttpPost]
public ActionResult ShowCompany(CompanyVm model)
{
DataTable dt = _objDAL.GetShowCompany(model.CompanyId);
int rowcount = dt.Columns.Count;
string[] strarray=new string[rowcount];
for (int i = 0; i < rowcount; i++)
{
strarray[i] = dt.Rows[0][i].ToString();
}
return Json(strarray,JsonRequestBehavior.AllowGet);
}
}
0
Ravi Patel10y ago
Hi ,
try this
//change your Controller action method
[HttpGet]
public ActionResult ShowCompany(int CompanyId)
{
DataTable dt = _objDAL.GetShowCompany(CompanyId);
int rowcount = dt.Columns.Count;
string[] strarray=new string[rowcount];
for (int i = 0; i < rowcount; i++)
{
strarray[i] = dt.Rows[0][i].ToString();
}
return Json(strarray,JsonRequestBehavior.AllowGet);
}
}
0