WPF获取选中单元格的内容-技术&分享

1.DataGrid动态添加一行数据

点击添加按钮时，DataGrid添加一行数据

代码如下

TempPackageConfig.xml文件

<?xml version="1.0" encoding="utf-8" ?>
<Mysoft.Config>
<PackageCollection>
<PackageVersion name="" maxId="">
</PackageVersion>
</PackageCollection>
</Mysoft.Config>

添加一行数据

private void AddButton_Click(object sender, RoutedEventArgs e)//添加更新包
{
XmlDocument xmlPackage = getTempConfigXml();

XmlElement element = xmlPackage.CreateElement("Details");
XmlNode node = xmlPackage.SelectSingleNode(@"/Mysoft.Config/PackageCollection/PackageVersion");
node.AppendChild(element);

element = xmlPackage.CreateElement("PackageName");
XmlNode DetailsNode= xmlPackage.SelectSingleNode(@"/Mysoft.Config/PackageCollection/PackageVersion").LastChild;
node = DetailsNode.AppendChild(element);
node.InnerText = PackageNameBox.Text;

element = xmlPackage.CreateElement("PackagePath");
node = DetailsNode.AppendChild(element);
node.InnerText = PackagePathBox.Text;

element = xmlPackage.CreateElement("Do");
node = DetailsNode.AppendChild(element);
node.InnerText = "删除";

xmlPackage.Save(AppDomain.CurrentDomain.BaseDirectory + "TempPackageConfig.xml");

XmlNodeList Nodelist = xmlPackage.SelectNodes(@"/Mysoft.Config/PackageCollection/PackageVersion/Details");
PackageDetailsGrid.ItemsSource = Nodelist;

}

总共定义了3个单元格：更新包名称PackageName、更新包路径PackagePath、操作Do

2.获取DataGrid选中行的内容

点击第一行最后一个单元格删除超链接时，想要获取到当前选中行的更新包单元格的内容（3123）



PackageDetailsGrid为DataGrid的名称

获取当前选中的行：PackageDetailsGrid.SelectedItem

获取当前选中行的索引：PackageDetailsGrid.SelectedIndex

获取到PackageDetailsGrid.SelectedItem为object类型，不知道怎么操作，所以将object(System.xml.XmlElement)转换为System.Xml.XmlLinkedNode

获取第一行第一列单元格PackageName的内容

((System.Xml.XmlLinkedNode)(PackageDetailsGrid.SelectedItem)).SelectSingleNode("PackageName").InnerText;