2 Dimensional Dynamic Listview With Textbox - wpf

Question

This a dynamic listview with dynamic header and rows. But the problem here is wen i try to use a textbox as
xaml = "<DataTemplate><TextBox VerticalAlignment=\"Center\" TextChanged=\"{Binding " + propName + "}\" > " + propName + "</TextBox></DataTemplate>";
instead of a checkbox with a binding in the method CreateDataTemplate the values can't be extratcted after the btn is clicked.
Here is the code with CheckBox. So can anybody plz help me out. and i also need the values which will be inside the textbox. Thank you in advance
<Window x:Class="WpfListView.SalesPerson_SalesRegion_Association"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="SalesPerson_SalesRegion_Association" Height="500" Width="500">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition Height="Auto"></RowDefinition>
</Grid.RowDefinitions>
<ListView Name="listView1" Width="400" Height="300" Margin="20" HorizontalAlignment="Left">
<ListView.View>
<GridView></GridView>
</ListView.View>
</ListView>
<Button Grid.Row="1" HorizontalAlignment="Left"
Content="ShowSelectedMapping"
Name="btnShow" Width="150" Margin="0,10,0,0" Click="btnShow_Click"></Button>
<TextBlock Name="textBlock1" Grid.Row="2"
HorizontalAlignment="Left" Margin="0,10,0,0"></TextBlock>
</Grid>
public partial class SalesPerson_SalesRegion_Association : Window
{
public SalesPerson_SalesRegion_Association()
{
InitializeComponent();
AddColumnsToListView();
DataTable dt = DataHelper.GetRegionPersonAssociation();
listView1.ItemsSource = dt.DefaultView;
}
private void btnShow_Click(object sender, RoutedEventArgs e)
{
DataView view = listView1.ItemsSource as DataView;
DataTable userSelectionTbl = view.ToTable();
DataTable idTable = DataHelper.GetRegionIdPersonIdMatrix();
List<SalesRegion> lstRegion = SalesRegion.GetRegions();
string selectedRegion = string.Empty;
string msg = string.Empty;
DataRow dRow=null;
int totRows = userSelectionTbl.Rows.Count;
int totCols = lstRegion.Count-1;
string strTempMsg = string.Empty;
bool isColChecked = false;
for (int rowIndex = 0; rowIndex < totRows; rowIndex++)
{
dRow = userSelectionTbl.Rows[rowIndex];
strTempMsg = dRow[0].ToString() + "(" + idTable.Rows[rowIndex][0].ToString() + ")" + " : ";
string rgnId="";
isColChecked = false;
foreach (SalesRegion region in lstRegion)
{
if (((bool)dRow[region.RegionName]) == true)
{
rgnId = idTable.Rows[rowIndex][region.RegionName].ToString();
strTempMsg += region.RegionName + "(" + rgnId + ")";
isColChecked = true; }
}
if (isColChecked == false)
{
strTempMsg += " : No region selected";
}
strTempMsg += Environment.NewLine;
msg += strTempMsg;
}
textBlock1.Text = msg;
string tt = "t";
}
private void AddColumnsToListView()
{
List<SalesRegion> lstSalesRegion = SalesRegion.GetRegions();
List<SalesPerson> lstSalesPerson = SalesPerson.GetSalesPersons();
GridViewColumn colSalesPerson = new GridViewColumn();
colSalesPerson.Header = "Sales Person";
colSalesPerson.DisplayMemberBinding = new Binding("SalesPersonName");
colSalesPerson.Width = 150;
GridView grdView = listView1.View as GridView;
grdView.Columns.Add(colSalesPerson);
//Since columns are dynamic we need a data template per column
// in which we bind the checkBox's checked property with
//appropriate columnName
Dictionary<string, DataTemplate> dict = GetDataTemplates(lstSalesRegion);
foreach (SalesRegion region in lstSalesRegion)
{
GridViewColumn col1 = new GridViewColumn();
col1.Header = region.RegionName;
DataTemplate dTempl = dict[region.RegionName];
col1.CellTemplate = dTempl;
grdView.Columns.Add(col1);
}
}
private Dictionary<string, DataTemplate> GetDataTemplates(List<SalesRegion> lstSalesRegion)
{
Dictionary<string, DataTemplate> dict = new Dictionary<string, DataTemplate>();
foreach (SalesRegion region in lstSalesRegion)
{
DataTemplate dTemplate = CreateDataTemplate(region.RegionName);
dict.Add(region.RegionName, dTemplate);
}
return dict;
}
private DataTemplate CreateDataTemplate(string propName)
{
MemoryStream sr = null;
ParserContext pc = null;
string xaml = string.Empty;
xaml = "<DataTemplate><CheckBox VerticalAlignment=\"Center\" IsChecked=\"{Binding " + propName + "}\"></CheckBox></DataTemplate>";
sr = new MemoryStream(Encoding.ASCII.GetBytes(xaml));
pc = new ParserContext();
pc.XmlnsDictionary.Add("", "http://schemas.microsoft.com/winfx/2006/xaml/presentation");
pc.XmlnsDictionary.Add("x", "http://schemas.microsoft.com/winfx/2006/xaml");
DataTemplate datatemplate = (DataTemplate)XamlReader.Load(sr, pc);
return datatemplate;
}
} // class ends here
} // DataHelper classes
public class SalesPerson
{
public int SalesPersonId
{ get; set; }
public string SalesPersonName
{ get; set; }
public SalesPerson(int salesPersonId, string salesPersonName)
{
this.SalesPersonId = salesPersonId;
this.SalesPersonName = salesPersonName;
}
public static List<SalesPerson> GetSalesPersons()
{
List<SalesPerson> lst = new List<SalesPerson>();
lst.Add(new SalesPerson(101, "SalesPerson1"));
lst.Add(new SalesPerson(201, "SalesPerson2"));
lst.Add(new SalesPerson(301, "SalesPerson3"));
lst.Add(new SalesPerson(401, "SalesPerson4"));
lst.Add(new SalesPerson(501, "SalesPerson5"));
return lst;
}
} // class SalesPerson ends here
public class SalesRegion
{
public int RegionId
{ get; set; }
public string RegionName
{ get; set; }
public SalesRegion(int regionId, string regionName)
{
this.RegionId = regionId;
this.RegionName = regionName;
}
public static List<SalesRegion> GetRegions()
{
List<SalesRegion> lst = new List<SalesRegion>();
lst.Add(new SalesRegion(501,"North"));
lst.Add(new SalesRegion(502, "South"));
lst.Add(new SalesRegion(503, "East"));
lst.Add(new SalesRegion(504, "West"));
lst.Add(new SalesRegion(505, "MyRegion"));
return lst;
}
} // class SalesRegion ends here
public class DataHelper
{
public static DataTable GetRegionPersonAssociation()
{
DataTable dt = new DataTable();
//Create data table structure
// SalesPerson Region1 Region2 Region3 ....
DataColumn colSalesPerson = new DataColumn("SalesPersonName", typeof(string));
dt.Columns.Add(colSalesPerson);
List<SalesRegion> lstRegions = SalesRegion.GetRegions();
DataColumn colRegion = null;
foreach (SalesRegion region in lstRegions)
{
colRegion = new DataColumn(region.RegionName, typeof(bool));
dt.Columns.Add(colRegion);
}
//Fill data into the data table
List<SalesPerson> personList = SalesPerson.GetSalesPersons();
DataRow dRow = null;
foreach (SalesPerson sp in personList)
{
dRow = dt.NewRow();
dRow["SalesPersonName"] = sp.SalesPersonName;
foreach (SalesRegion sr in lstRegions)
{
dRow[sr.RegionName] = false;
}
dt.Rows.Add(dRow);
}
return dt;
}
public static DataTable GetRegionIdPersonIdMatrix()
{
DataTable dt = new DataTable();
//Create data table structure
// SalesPerson Region1 Region2 Region3 ....
DataColumn colSalesPerson = new DataColumn("SalesPersonId", typeof(int));
dt.Columns.Add(colSalesPerson);
List<SalesRegion> lstRegions = SalesRegion.GetRegions();
DataColumn colRegion = null;
foreach (SalesRegion region in lstRegions)
{
colRegion = new DataColumn(region.RegionName, typeof(int));
dt.Columns.Add(colRegion);
}
//Fill data into the data table
List<SalesPerson> personList = SalesPerson.GetSalesPersons();
DataRow dRow = null;
foreach (SalesPerson sp in personList)
{
dRow = dt.NewRow();
dRow["SalesPersonId"] = sp.SalesPersonId;
foreach (SalesRegion sr in lstRegions)
{
dRow[sr.RegionName] = sr.RegionId;
}
dt.Rows.Add(dRow);
}
return dt;
} } // class DataHelper ends here

Answer 1

use a textbox data template like this
xaml = "<DataTemplate><TextBox VerticalAlignment=\"Center\" Tag=\"{Binding " + propName + ", Mode=TwoWay}\" > " + propName + "</TextBox></DataTemplate>";
add a style for textboxes to your listview.resources
<Style TargetType="{x:Type TextBox}">
<EventSetter Event="TextChanged" Handler="TextBox_TextChanged"></EventSetter>
</Style>
add the handler to your codebehind
private void TextBox_TextChanged(object sender, TextChangedEventArgs e)
{
(sender as TextBox).Tag = true;
}
this will behave like your checkbox example.