xaml：
<Grid x:Name="LayoutRoot" Background="White">
<Grid.ColumnDeFinitions>
<ColumnDeFinition></ColumnDeFinition>
</Grid.ColumnDeFinitions>
<Grid.RowDeFinitions>
<RowDeFinition Height="20"></RowDeFinition>
<RowDeFinition Height="20"></RowDeFinition>
<RowDeFinition></RowDeFinition>
</Grid.RowDeFinitions>
<Button x:Name="btnSave" Grid.Column="0" Grid.Row="0" Content="保存" Click="btnSave_Click" />
<data:DataGrid Grid.Row="2" Grid.Column="0" Name="dg" AutoGenerateColumns="True"/>
</Grid>
后台：
public MainPage()
{
InitializeComponent();
this.Loaded += new RoutedEventHandler(MainPage_Loaded);
}
void MainPage_Loaded(object sender,RoutedEventArgs e)
{
List<DataTest> lists =new List<DataTest>();
lists.Add(new Datatest() { coloum1 = "213",coloum2 = "123213",coloum3 = "123213",coloum4 = "123" });
lists.Add(new Datatest() { coloum1 = "213",coloum4 = "123" });
dg.ItemsSource = lists;
}
private void btnSave_Click(object sender,RoutedEventArgs e)
{
string data = AppCode.ExportDataGrid(true,this.dg,true);
SaveFileDialog sfd = new SaveFileDialog();
sfd.DefaultExt = "csv";
sfd.Filter = "CSV Files (*.csv)|*.csv|All files (*.*)|*.*";
sfd.FilterIndex = 1;
if (sfd.ShowDialog() == true)
{
using (Stream stream = sfd.OpenFile())
{
//用utf8编码
Byte[] fileContent = System.Text.UTF8Encoding.UTF8.GetBytes(data);
stream.Write(fileContent,fileContent.Length);
stream.Close();
}
}
}
}
/--------------------
public class DataTest
{
public string coloum1
{
get;
set;
}
public string coloum2
{
get;
set;
}
public string coloum3
{
get;
set;
}
public string coloum4
{
get;
set;
}
/-------------------
/// <summary>
/// CSV格式化
/// </summary>
/// <param name="data">数据</param>
/// <returns>格式化数据</returns>
private static string FormatCSVField(string data)
{
return String.Format("\"{0}\"",data.Replace("\"","\"\"\"").Replace("\n","").Replace("\r",""));
}
/// <summary>
/// 导出DataGrid数据到Excel
/// </summary>
/// <param name="withHeaders">是否需要表头</param>
/// <param name="grid">DataGrid</param>
/// <returns>Excel内容字符串</returns>
public static string ExportDataGrid(bool withHeaders,DataGrid grid)
{
string colPath; System.Reflection.PropertyInfo propInfo;
System.Windows.Data.Binding binding;
System.Text.StringBuilder strBuilder = new System.Text.StringBuilder();
System.Collections.IList source = (grid.ItemsSource as System.Collections.IList);
if (source == null) return "";
List<string> headers = new List<string>();
grid.Columns.ToList().ForEach(col =>
{
if (col is DataGridBoundColumn)
{ headers.Add(FormatCSVField(col.Header.ToString())); }
});
strBuilder.Append(String.Join(",",headers.ToArray())).Append("\r\n");
foreach (Object data in source)
{
List<string> csvRow = new List<string>();
foreach (DataGridColumn col in grid.Columns)
{
if (col is DataGridBoundColumn)
{
binding = (col as DataGridBoundColumn).Binding;
colPath = binding.Path.Path;
propInfo = data.GetType().GetProperty(colPath);
if (propInfo != null)
{
csvRow.Add(FormatCSVField(propInfo.GetValue(data,null).ToString()));
}
}
}
strBuilder.Append(String.Join(",csvRow.ToArray())).Append("\r\n");
}
return strBuilder.ToString();
}
/// <summary>
/// 导出DataGrid数据到Excel
/// </summary>
/// <param name="withHeaders">是否需要表头</param>
/// <param name="grid">DataGrid</param>
/// <returns>Excel内容字符串</returns>
public static string ExportDataGrid(bool withHeaders,DataGrid grid,bool dataBind)
{
string colPath;
System.Reflection.PropertyInfo propInfo;
System.Windows.Data.Binding binding;
System.Text.StringBuilder strBuilder = new System.Text.StringBuilder();
System.Collections.IList source = (grid.ItemsSource as System.Collections.IList);
if (source == null) return "";
List<string> headers = new List<string>();
grid.Columns.ToList().ForEach(col =>
{
if (col is DataGridTextColumn)
{
if (col.Header != null)
{
headers.Add(FormatCSVField(col.Header.ToString()));
}
else
{
headers.Add(string.Empty);
}
}
});
strBuilder.Append(String.Join(",headers.ToArray())).Append("\r\n");
foreach (Object data in source)
{
List<string> csvRow = new List<string>();
foreach (DataGridColumn col in grid.Columns)
{
if (col is DataGridTextColumn)
{
FrameworkElement cellContent = col.GetCellContent(data);
TextBlock block = cellContent as TextBlock;
if (block != null)
{
csvRow.Add(FormatCSVField(block.Text));
}
}
}
strBuilder.Append(String.Join(",csvRow.ToArray())).Append("\r\n");
}
return strBuilder.ToString();
}
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