没文化真可怕--Silverlight 列冻结

　　今天接到一个需求，需要由于表格（封装的DataGrid）中的列太多，下面有滚动条，用户要求冻结前几列，便于数据查看，就像Excel那个冻结效果一新。

　　由于以前在“ComponnetOne”这个第方插件中见过，不知道怎么想的就以为DataGrid 不能实现,就去网上找实现的方式，当然说什么的都有，就是没有比较理想的解决方案...

　　一个偶然的发现:   DataGrid居然有"FrozenColumnCount"属性...,这货居然有这个属性。决定试一把..

　　XAML：

<UserControl x:Class="SilverlightApplication1.SilverlightControl1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:sdk="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="400">

    <Grid x:Name="LayoutRoot" Background="White">

        <StackPanel>

            <Button x:Name="Button1" Content="FillData" Click="Button1_Click" Height="30" Width="75" Margin="20, 10, 0, 20"/>

            <sdk:DataGrid x:Name="DataGrid1"  FrozenColumnCount="2" AutoGenerateColumns="False">
                <sdk:DataGrid.Columns>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=FirstName}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=FirstName}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=FirstName}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=FirstName}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=FirstName}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=LastName}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="121" Binding="{Binding Path=Age}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=IsActive}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=LastName}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=Age}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=IsActive}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=LastName}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=Age}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=IsActive}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=LastName}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=Age}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=IsActive}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=LastName}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=Age}"></sdk:DataGridTextColumn>
                    <sdk:DataGridTextColumn Width="120" Binding="{Binding Path=IsActive}"></sdk:DataGridTextColumn>
                </sdk:DataGrid.Columns>
            </sdk:DataGrid>

        </StackPanel>
    </Grid>
</UserControl>

 后台代码

　　

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace SilverlightApplication1
{
    public partial class SilverlightControl1 : UserControl
    {
        public SilverlightControl1()
        {
            InitializeComponent();
            DataGrid dg = new DataGrid();
            dg.FrozenColumnCount = 1;

        }
        public void Button1_Click(object sender, RoutedEventArgs e)
        {

            FillData();
        }
        private void FillData()
        {

            IList<Person> list = new List<Person>();



            Person p = new Person
            {

                Age = 1,

                FirstName = "Joe",

                LastName = "Elan",

                IsActive = true

            };

            Person p1 = new Person

            {

                Age = 15,

                FirstName = "Mike",

                LastName = "Bull",

                IsActive = true

            };

            Person p2 = new Person

            {

                Age = 51,

                FirstName = "Mukul",

                LastName = "Alwa",

                IsActive = true

            };

            Person p3 = new Person

            {

                Age = 31,

                FirstName = "Sheo",

                LastName = "Narayan",

                IsActive = true

            };

            list.Add(p);

            list.Add(p1);

            list.Add(p2);

            list.Add(p3);

            DataGrid1.ItemsSource = list;

        }

        public class Person
        {

            public string FirstName { get; set; }

            public string LastName { get; set; }

            public int Age { get; set; }

            public bool IsActive { get; set; }

        } 
    }
}

 效果:

　　

居然实现了……，白白浪费了半天时间，以后有问题多思考，然后再网络！