Well can't you just find the ip address you want to change and then just change it.

i need to change the ip address in runtime..i need the coding....i m trying in VB.net..help me....
dataset1.ReadXMLSchema( " c:\service.wsdl")
i tried the above line..but i cant..help me....

I don't get what you mean. Sorrie. runtime? What difference does it make if you change it at runtime or later?

my coding is ...

dim ds as new dataset
ds.readxmlschema("c:\website2\sample\App_webreference\service.wsdl")
when i run the above coding in vb.net...i m getting the error "the supplied xmlinstance is a schema or contains an inline schema.this class cannot infer a schema for a schema"..help me plz

Erm is your wsdl file valid xml scheme?

ERM means? my file is not an xmlschema...its wsdl file..which i got when i "add web reference" in vb.net.... the wsdl file has two ip address.i want to change that ip address during runtime.......help me...

Can you post the contents of your wsdl file and hightlight the ip address you need to change.

<?xmlversion="1.0"encoding="utf-8"?>
<wsdl:definitionsxmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"xmlns:tm="http://microsoft.com/wsdl/mime/textMatching/"xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/"xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/"xmlns:tns="http://tempuri.org/"xmlns:s="http://www.w3.org/2001/XMLSchema"xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/"xmlns:http="http://schemas.xmlsoap.org/wsdl/http/"targetNamespace="http://tempuri.org/"xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">
<wsdl:types>
<s:schemaelementFormDefault="qualified"targetNamespace="http://tempuri.org/">
<s:elementname="file_send">
<s:complexType>
<s:sequence>
<s:elementminOccurs="0"maxOccurs="1"name="sam"type="s:string" />
</s:sequence>
</s:complexType>
</s:element>
<s:elementname="file_sendResponse">
<s:complexType>
<s:sequence>
<s:elementminOccurs="0"maxOccurs="1"name="file_sendResult">
<s:complexType>
<s:sequence>
<s:elementref="s:schema" />
<s:any />
</s:sequence>
</s:complexType>
</s:element>
</s:sequence>
</s:complexType>
</s:element>
<s:elementname="ListOfFile">
<s:complexType>
<s:sequence>
<s:elementminOccurs="0"maxOccurs="1"name="getfile"type="s:string" />
</s:sequence>
</s:complexType>
</s:element>
<s:elementname="ListOfFileResponse">
<s:complexType>
<s:sequence>
<s:elementminOccurs="0"maxOccurs="1"name="ListOfFileResult">
<s:complexType>
<s:sequence>
<s:elementref="s:schema" />
<s:any />
</s:sequence>
</s:complexType>
</s:element>
</s:sequence>
</s:complexType>
</s:element>
<s:elementname="file_receive_store">
<s:complexType>
<s:sequence>
<s:elementminOccurs="0"maxOccurs="1"name="ds1">
<s:complexType>
<s:sequence>
<s:elementref="s:schema" />
<s:any />
</s:sequence>
</s:complexType>
</s:element>
<s:elementminOccurs="0"maxOccurs="1"name="str"type="s:string" />
</s:sequence>
</s:complexType>
</s:element>
<s:elementname="file_receive_storeResponse">
<s:complexType>
<s:sequence>
<s:elementminOccurs="0"maxOccurs="1"name="file_receive_storeResult"type="s:string" />
</s:sequence>
</s:complexType>
</s:element>
</s:schema>
</wsdl:types>
<wsdl:messagename="file_sendSoapIn">
<wsdl:partname="parameters"element="tns:file_send" />
</wsdl:message>
<wsdl:messagename="file_sendSoapOut">
<wsdl:partname="parameters"element="tns:file_sendResponse" />
</wsdl:message>
<wsdl:messagename="ListOfFileSoapIn">
<wsdl:partname="parameters"element="tns:ListOfFile" />
</wsdl:message>
<wsdl:messagename="ListOfFileSoapOut">
<wsdl:partname="parameters"element="tns:ListOfFileResponse" />
</wsdl:message>
<wsdl:messagename="file_receive_storeSoapIn">
<wsdl:partname="parameters"element="tns:file_receive_store" />
</wsdl:message>
<wsdl:messagename="file_receive_storeSoapOut">
<wsdl:partname="parameters"element="tns:file_receive_storeResponse" />
</wsdl:message>
<wsdl:portTypename="ServiceSoap">
<wsdl:operationname="file_send">
<wsdl:inputmessage="tns:file_sendSoapIn" />
<wsdl:outputmessage="tns:file_sendSoapOut" />
</wsdl:operation>
<wsdl:operationname="ListOfFile">
<wsdl:inputmessage="tns:ListOfFileSoapIn" />
<wsdl:outputmessage="tns:ListOfFileSoapOut" />
</wsdl:operation>
<wsdl:operationname="file_receive_store">
<wsdl:inputmessage="tns:file_receive_storeSoapIn" />
<wsdl:outputmessage="tns:file_receive_storeSoapOut" />
</wsdl:operation>
</wsdl:portType>
<wsdl:bindingname="ServiceSoap"type="tnserviceSoap">
<soap:bindingtransport="http://schemas.xmlsoap.org/soap/http" />
<wsdl:operationname="file_send">
<soap:operationsoapAction="http://tempuri.org/file_send"style="document" />
<wsdl:input>
<soap:bodyuse="literal" />
</wsdl:input>
<wsdl:output>
<soap:bodyuse="literal" />
</wsdl:output>
</wsdl:operation>
<wsdl:operationname="ListOfFile">
<soap:operationsoapAction="http://tempuri.org/ListOfFile"style="document" />
<wsdl:input>
<soap:bodyuse="literal" />
</wsdl:input>
<wsdl:output>
<soap:bodyuse="literal" />
</wsdl:output>
</wsdl:operation>
<wsdl:operationname="file_receive_store">
<soap:operationsoapAction="http://tempuri.org/file_receive_store"style="document" />
<wsdl:input>
<soap:bodyuse="literal" />
</wsdl:input>
<wsdl:output>
<soap:bodyuse="literal" />
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:bindingname="ServiceSoap12"type="tnserviceSoap">
<soap12:bindingtransport="http://schemas.xmlsoap.org/soap/http" />
<wsdl:operationname="file_send">
<soap12:operationsoapAction="http://tempuri.org/file_send"style="document" />
<wsdl:input>
<soap12:bodyuse="literal" />
</wsdl:input>
<wsdl:output>
<soap12:bodyuse="literal" />
</wsdl:output>
</wsdl:operation>
<wsdl:operationname="ListOfFile">
<soap12:operationsoapAction="http://tempuri.org/ListOfFile"style="document" />
<wsdl:input>
<soap12:bodyuse="literal" />
</wsdl:input>
<wsdl:output>
<soap12:bodyuse="literal" />
</wsdl:output>
</wsdl:operation>
<wsdl:operationname="file_receive_store">
<soap12:operationsoapAction="http://tempuri.org/file_receive_store"style="document" />
<wsdl:input>
<soap12:bodyuse="literal" />
</wsdl:input>
<wsdl:output>
<soap12:bodyuse="literal" />
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:servicename="Service">
<wsdl:portname="ServiceSoap"binding="tnserviceSoap">
<soap:addresslocation="http://172.31.15.70/testwebserver/Service.asmx" />
</wsdl:port>
<wsdl:portname="ServiceSoap12"binding="tnserviceSoap12">
<soap12:addresslocation="http://172.31.15.70/testwebserver/Service.asmx" />
</wsdl:port>
</wsdl:service>
</wsdl:definitions>

"http://172.31.15.70/testwebserver/Service.asmx"...want to change this whole address to "http://170.30.19.45/destination/Service.asmx"

Er, have you heard of string.replace?