Disable install button when selected nothing

components/application-mgt/org.wso2.carbon.device.application.mgt.store.ui/react-app/src/components/apps/release/install/DeviceInstall.js

@@ -106,9 +106,6 @@ class DeviceInstall extends React.Component {
         }),
     };
 
-
-
-
     componentDidMount() {
         this.fetch();
     }

components/application-mgt/org.wso2.carbon.device.application.mgt.store.ui/react-app/src/components/apps/release/install/GroupInstall.js

@@ -110,7 +110,7 @@ class GroupInstall extends React.Component {
                     ))}
                 </Select>
                 <div style={{paddingTop:10, textAlign:"right"}}>
-                    <Button htmlType="button" type="primary" onClick={this.install}>Install</Button>
+                    <Button disabled={value.length===0} htmlType="button" type="primary" onClick={this.install}>Install</Button>
                 </div>
             </div>
         );

components/application-mgt/org.wso2.carbon.device.application.mgt.store.ui/react-app/src/components/apps/release/install/RoleInstall.js

@@ -110,7 +110,7 @@ class RoleInstall extends React.Component {
                     ))}
                 </Select>
                 <div style={{paddingTop:10, textAlign:"right"}}>
-                    <Button htmlType="button" type="primary" onClick={this.install}>Install</Button>
+                    <Button disabled={value.length===0} htmlType="button" type="primary" onClick={this.install}>Install</Button>
                 </div>
             </div>
         );

components/application-mgt/org.wso2.carbon.device.application.mgt.store.ui/react-app/src/components/apps/release/install/UserInstall.js

@@ -86,7 +86,6 @@ class UserInstall extends React.Component {
     };
 
     render() {
-
         const {fetching, data, value} = this.state;
 
         return (
@@ -110,7 +109,7 @@ class UserInstall extends React.Component {
                     ))}
                 </Select>
                 <div style={{paddingTop: 10, textAlign: "right"}}>
-                    <Button htmlType="button" type="primary" onClick={this.install}>Install</Button>
+                    <Button disabled={value.length===0} htmlType="button" type="primary" onClick={this.install}>Install</Button>
                 </div>
             </div>
         );