How is the value of DateSet in JavaScript always undefined ???

hahahoho

var i = ds.table [0] .rows [0] ["city"]
alert (i)

Always warning undefined
Is there a syntax error? How can I write to get the value?

shenmue024

Where is ds ????? Client and DataSet?

maggic

Client, ds is not an object, look at table

hahahoho

Ajax, yes
if (response.value! = null)
{document.all ("DropDownList2"). length = 0;
Var ds = response.value;
if (ds! = null&&typeof (ds) == "object"&&ds.Tables! = null)
{
for (var i = 0; i <ds.Tables [0] .Rows.length; i ++)
{
Var var name = ds.Tables [0] .Rows [i] ["city"];
Alert (name)
Document.all ("DropDownList2"). Options.add (new Option (name, id));
}
}
}

ds.Tables [0] .Rows.length can get the value!

niaobiede

Get table object using document.getElementById ("idname") in javascript
Because the datagrid is converted into a table on the client

shenmue024

Ajax is unfamiliar and I don't know how the type of DS is defined on the client.

Can you check the case?
Or
ds.table [0] .rows [0] ["city"] Replace it with ds.table [0] .rows [0] [index] and see.
JavaScript generally doesn't seem to use string as the key value.

hahahoho

Not very clear, my DS is taken from the response, that is, var ds = response.value; and ds.Tables [0] .Rows.length can indeed get the number of rows of ds, then I want to get the corresponding field Value, how should the code be written?

niaobiede

var tableDate = document.getElementById ("tableid");
var cellDate = tableDate.rows [0] .cells [1];

xwgjyhl

Return a datatable object.
Then use var i = ds.rows [0] ["city"]

52110081

I can't use response.write directly in the cs file.