mvvm - WPF DataGrid binding -



mvvm - WPF DataGrid binding -

i came across issue when ilist bound datagrid.

the class construction is,

public class client { public virtual int customerid { get; set; } public virtual string name { get; set; } public virtual string addressline1 { get; set; } public virtual string addressline2 { get; set; } public virtual string addressline3 { get; set; } public virtual bool isactive { get; set; } public virtual salesline salesline { get; set; } public virtual int precedence { get; set; } } public class salesline { public virtual int saleslineid { get; set; } public virtual string name { get; set; } public virtual salesperson salesperson { get; set; } public virtual ilist<customer> customers { get; set; } }

i create new ilist of client class.

ilist<customer> customerlist = new ilist<customer>();

then "customerlist" populated. since client has salesline "saleslines" ilist populated sales lines in database.

now next xaml going bind customerlist datagrid,

<datagrid autogeneratecolumns="false" grid.column="1" grid.row="1" horizontalalignment="stretch" name="grdcustomers" verticalalignment="stretch" grid.columnspan="2" itemssource="{binding customerlist}" canuseraddrows="true"> <datagrid.columns> <datagridtextcolumn header="name" binding="{binding name}" width="250" /> <datagridtextcolumn header="address street" binding="{binding addressline1}" width="150" /> <datagridtextcolumn header="address town" binding="{binding addressline2}" width="150" /> <datagridtextcolumn header="address area" binding="{binding addressline3}" width="150" /> <datagridcheckboxcolumn header="is active" binding="{binding isactive}" width="75" /> <datagridcomboboxcolumn header="sales line" width="150" selecteditembinding="{binding salesline}" selectedvaluepath="saleslineid" displaymemberpath="name"> <datagridcomboboxcolumn.elementstyle> <style targettype="combobox"> <setter property="itemssource" value="{binding relativesource={relativesource findancestor, ancestortype={x:type usercontrol}}, path=datacontext.saleslinelist}"/> </style> </datagridcomboboxcolumn.elementstyle> <datagridcomboboxcolumn.editingelementstyle> <style targettype="combobox"> <setter property="itemssource" value="{binding relativesource={relativesource findancestor, ancestortype={x:type usercontrol}}, path=datacontext.saleslinelist}"/> </style> </datagridcomboboxcolumn.editingelementstyle> </datagridcomboboxcolumn> </datagrid.columns> </datagrid>

now display columns except sales line column.

even though have bound salesline column, not display current rows sales line name in grid. however, when click on dropdown box, dropdown populated.

please help me displaying sales line name on sales line column.

this because customer.salesline property not point object in saleslinelist

you need overwrite tostring() method in salesline class create 2 objects same if ids match. default, consider them same if reference exact same object in memoroy.

wpf mvvm

Comments

Post a Comment

Popular posts from this blog

iphone - Dismissing a UIAlertView -

iphone - Dismissing a UIAlertView - i set in app purchase app, , when user taps button, purchase started. basically, tap button, , depending on speed on net connection, waiting 10 seconds until new alert view comes asking if purchase product. user tap button multiple times since nil came up, , multiple purchase alert views come up. additionally, maybe seen user app bug. in end, problem. i want alert view come spinning wheel says "loading..." when users taps purchase button. problem is, how dismiss when new alert view comes asking user if want purchase product? if ([uialertview alloc] says: @"whatever apple's alert view says") { //dismiss "loading..." alert view here } i uncertainty work, input appreciated. thanks! you need have access alertview. can this. create alertview instance var in app delegate , when want show loading initialize instance var assign property , when want dismiss phone call [alertviewinstance d...
Read more

intellij idea - Update external libraries with intelij and java -

intellij idea - Update external libraries with intelij and java - simple plenty really. i'm using apache jars, i'll create changes jar's every often. these jars listed external libs in intelij (i.e classpath looking install dir of jar's). when create changes intelij doesn't seem know new implementation. have remove jar external library , re-ad it. does know have intelij picks changes automatically ? i've done clean , rebuild project had little effect. you can go preferences -> build, execution, deployment -> build tools -> maven -> importing , check box says import maven projects automatically . in mac, can command + shift + a , come in action reimport , click on reimport maven projects . intellij-idea
Read more

javascript - send data from a new window to previous window in php -

javascript - send data from a new window to previous window in php - i have image in main.php file : <img src="..\images\image.gif" class="cur" onclick="imgwin();"> when click on image below function has called : function imgwin() { imagewin=window.open("../pages/img.php","imagewin","toolbar=no,width=500,height=200,directories=no,menubar=no,scrollbars=yes"); } this function opens img.php in new window img.php file : <html> <head> <title>upload image</title> </head> <body> <form name="imgform" method="get" action="#"> address : <input type="file" name="imgurl" size="50"> description : <input type="text" name="description" size="50"> <input type="submit" value="sumbit...
Read more