PASS and Read XML to Webservice

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Hi,

How to create a webservice which reads XML file, And how to passes XML to this webservice.

When i pass as string its giving below error

System.Web.HttpRequestValidationException: A potentially dangerous Request.Form value was detected from the client (OrderSummaryID="<AllPlayers><Player ...").

Posted 18-Feb-15 6:31am

Sanju TV

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TheKarateKid 18-Feb-15 12:51pm

The XML string you are trying to pass is a XML Fragment or XML Document?
you can have WebMethod/OperationContract with DataSet or DataTable as a method parameter. pass the DataSet or DataTable directly to WebMethod while invoking it from proxy

Sanju TV 18-Feb-15 13:06pm

can i have any sample application

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TheKarateKid · Answer 1 · 2015-02-18T07:49:00

You can create something like following, this is quick and dirty, with basicHttpBinding

On the service side :

[ServiceContract]
public interface ICrudService
{
[OperationContract]
DataTable GetEmployeeData();

[OperationContract]
bool DoWork(DataTable empData);
}

public class CrudService : ICrudService
{

public bool DoWork(DataTable empData)
{
//Perform any db activities

return true;
}

public DataTable GetEmployeeData()
{
DataTable dtEmp = new DataTable("EmpData");

dtEmp.Columns.Add("ID");
dtEmp.Columns.Add("FirstName");
dtEmp.Columns.Add("LastName");
dtEmp.Columns.Add("Salary");

for (int i = 0; i < 10; i++)
{
Random r = new Random(10);

DataRow row = dtEmp.NewRow();
row["ID"] = i + 1;
row["FirstName"] = "John " + (i + 1).ToString();
row["LastName"] = "Doe";
row["Salary"] = 10000.00 + r.Next();

dtEmp.Rows.Add(row);
}
dtEmp.AcceptChanges();

return dtEmp;
}
}

and on the ASPX Page where you want to consume the service:

private CrudServiceClient _proxy = new CrudServiceClient("BasicHttpBinding_ICrudService");

public DataTable Employees
{
get
{
if (ViewState["Emp"] != null)
return (DataTable)ViewState["Emp"];
else
return null;
}
set
{
ViewState["Emp"] = value;
}
}

protected void Page_Load(object sender, EventArgs e)
{

}

protected void btnGet_Click(object sender, EventArgs e)
{
if (_proxy != null)
{
this.Employees = _proxy.GetEmployeeData();
}
else
{
_proxy = new CrudServiceClient();
this.Employees = _proxy.GetEmployeeData();
}

if (this.Employees != null)
{
lblMsg.Text = string.Format("Total {0} Employees in the System", this.Employees.Rows.Count.ToString());
btnUpdate.Enabled = true;
}
else
{
btnUpdate.Enabled = false;
}

}

protected void btnUpdate_Click(object sender, EventArgs e)
{
DataTable dtEmp = this.Employees.Clone();

if (this.Employees != null)
{
DataRow newEmp = dtEmp.NewRow();
newEmp["ID"] = 11;
newEmp["FirstName"] = "Jonny";
newEmp["LastName"] = "Jones";
newEmp["Salary"] = 50000;
dtEmp.Rows.Add(newEmp);
}

if (_proxy != null)
{
if (_proxy.DoWork(dtEmp))
{
lblMsg.Text = "Employee Updated Successfully";
}

}
else
{
_proxy = new CrudServiceClient();
if (_proxy.DoWork(dtEmp))
{
lblMsg.Text = "Employee Updated Successfully";
}

}

btnUpdate.Enabled = false;
btnGet.Enabled = true;
this.Employees = null;
}

HTH,
Thanks