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4
Answers
Get item text id and value to save in database
onais ahmer
6y
604
1
Reply
MY WHOLE CODE
public
class
HomeController : Controller
{
string
constr =
"Connection String"
;
public
ActionResult Index()
{
return
View();
}
public
ActionResult GetAllTableNames()
{
SqlConnection con =
new
SqlConnection(constr);
SqlCommand cmd =
new
SqlCommand(
"select CountryName,CountryId from Countries"
, con);
SqlDataAdapter da =
new
SqlDataAdapter(cmd);
DataTable dt =
new
DataTable();
da.Fill(dt);
var data = dt.AsEnumerable().Select(k => k[
"CountryName"
].ToString());
return
Json(data);
}
//public ActionResult GetAllColumnNames(string tbl)
//{
// SqlConnection con = new SqlConnection(constr);
// SqlCommand cmd = new SqlCommand("SELECT c.CountryId, c.CountryName, s.CityId,s.CityName FROM (Countries c INNER JOIN Cities s ON c.CountryId = s.StateId) where c.CountryName= @tbl ", con);
// SqlDataAdapter da = new SqlDataAdapter(cmd);
// cmd.Parameters.AddWithValue("@tbl", tbl);
// DataTable dt = new DataTable();
// da.Fill(dt);
// var data = dt.AsEnumerable().Select(k => k["CityName"].ToString());
// return Json(data);
//}
//Your c# code should be
public
ActionResult GetAllColumnNames(
string
tbl)
// At this tbl I get the country name i also want to get Country ID
{
SqlConnection con =
new
SqlConnection(constr);
SqlCommand cmd =
new
SqlCommand(
"SELECT c.CountryId, c.CountryName, s.CityId,s.CityName FROM (Countries c INNER JOIN Cities s ON c.CountryId = s.StateId) where c.CountryName= @tbl "
, con);
SqlDataAdapter da =
new
SqlDataAdapter(cmd);
cmd.Parameters.AddWithValue(
"@tbl"
, tbl);
DataTable dt =
new
DataTable();
da.Fill(dt);
var data = from p
in
dt.AsEnumerable()
select
new
{
CountryId = p.Field<
int
>(
"CountryId"
),
CountryName = p.Field<
string
>(
"CountryName"
)
};
return
Json(data);
}
public
ActionResult GetTableData(
string
tableName,
string
columnNames)
{
SqlConnection con =
new
SqlConnection(constr);
SqlCommand cmd =
new
SqlCommand(
"select "
+ columnNames +
" from "
+ tableName, con);
SqlDataAdapter da =
new
SqlDataAdapter(cmd);
DataTable dt =
new
DataTable();
da.Fill(dt);
string
data = JsonConvert.SerializeObject(dt);
return
Json(data);
}
}
}
SCRIPT CODE
$(
function
() {
$.ajax({
url:
'@Url.Action("GetAllTableNames", "home")'
,
data: {},
type:
'post'
,
contentType:
"application/json; charset=utf-8"
,
dataType:
"json"
,
success:
function
(data) {
var
ddl = $(
'#ddlTableNames'
);
var
options = [];
for
(
var
i = 0, len = data.length; i < len; ++i)
options.push(
'<option value="'
+ data[i] +
'">'
+ data[i] +
'</option>'
);
ddl.append(options.join(
''
));
},
error:
function
(a, b, c) {
console.log(a, b, c);
}
});
});
function
populateColumns(ddl){
var
table = ddl.value;
$.ajax({
url:
'@Url.Action("GetAllColumnNames", "home")'
,
data: JSON.stringify({
'tbl'
:table}),
type:
'post'
,
contentType:
"application/json; charset=utf-8"
,
dataType:
"json"
,
success:
function
(data) {
var
ddl = $(
'#ddlColumnNames'
);
ddl.empty();
var
options = [];
for
(
var
i = 0, len = data.length; i < len; ++i)
options.push(
'<option value="'
+ data[i] +
'">'
+ data[i] +
'</option>'
);
ddl.append(options.join(
''
));
},
error:
function
(a, b, c) {
console.log(a, b, c);
}
});
}
function
getdata() {
var
table = $(
'#ddlTableNames'
).val();
var
columns = $(
'#ddlColumnNames'
).val().join(
','
);
debugger
;
$.ajax({
url:
'@Url.Action("GetTableData", "home")'
,
data: JSON.stringify({
'tableName'
: table,
'columnNames'
:columns }),
type:
'post'
,
contentType:
"application/json; charset=utf-8"
,
dataType:
"json"
,
success:
function
(data) {
debugger
;
var
json = JSON.parse(data);
generateTable(json)
},
error:
function
(a, b, c) {
console.log(a, b, c);
}
});
}
function
generateTable(json) {
var
$table = $(
'#tblDynamic'
);
$table.find(
'thead'
).empty()
$table.find(
'tbody'
).empty()
if
(json && json.length > 0) {
var
header = json[0];
var
columns = [];
for
(
var
col
in
header) {
columns.push(
'<th>'
+ col +
'</th>'
);
}
$table.find(
'thead'
).append(
'<tr>'
+ columns.join(
''
) +
'</tr>'
);
var
rows = [];
for
(
var
i = 0; i < json.length; i++) {
var
row = json[i];
var
tds = [];
for
(
var
col
in
row) {
tds.push(
'<td>'
+ row[col] +
'</td>'
);
}
rows.push(
'<tr>'
+ tds.join() +
'</tr>'
);
}
$table.find(
'tbody'
).append(rows.join(
''
));
}
}
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