久经考验
private void button1_Click(object sender, EventArgs e)
{
object xlApp;
object xlWbCol;
object xlWb;
object xlSheet;
object xlRange;
object xlWsCol;
//~~> create new Excel instance
Type tp;
tp = Type.GetTypeFromProgID("Excel.Application");
xlApp = Activator.CreateInstance(tp);
object[] parameter = new object[1];
parameter[0] = true;
xlApp.GetType().InvokeMember("Visible", BindingFlags.SetProperty, null, xlApp, parameter);
xlApp.GetType().InvokeMember("UserControl", BindingFlags.SetProperty, null, xlApp, parameter);
//~~> Get the xlWb collection
xlWbCol = xlApp.GetType().InvokeMember("Workbooks", BindingFlags.GetProperty, null, xlApp, null);
//~~> Create a new xlWb
xlWb = xlWbCol.GetType().InvokeMember("Add", BindingFlags.InvokeMethod, null, xlWbCol, null);
//~~> Get the worksheet collection
xlWsCol = xlWb.GetType().InvokeMember("WorkSheets", BindingFlags.GetProperty, null, xlApp, null);
//~~> Create a new workxlSheet
xlSheet = xlWb.GetType().InvokeMember("Add", BindingFlags.InvokeMethod, null, xlWsCol, null);
//~~> Assign cell to xlRange object
xlRange = xlSheet.GetType().InvokeMember("Cells", BindingFlags.GetProperty, null, xlSheet, new object[2] { 1, 1 });
//~~> Write a date to cell
xlRange.GetType().InvokeMember("Value", BindingFlags.SetProperty, null, xlRange, new object[] { "1-1-2012" });
//~~> Get the column
object cols = xlRange.GetType().InvokeMember("Columns", BindingFlags.GetProperty, null, xlRange, null);
//~~> Autofit the column
cols.GetType().InvokeMember("AutoFit", BindingFlags.InvokeMethod, null, cols, null);
//~~> Format the entire Column
cols.GetType().InvokeMember("NumberFormat", BindingFlags.SetProperty, null, cols, new object[1] { "DD/MM/YYYY" });
//~~> Release the object
//System.Runtime.InteropServices.Marshal.ReleaseComObject(xlApp);
}
注意:using System.Reflection;
在顶部添加
跟进
对于usedrange
此作品的 Autofit
private void button1_Click(object sender, EventArgs e)
{
object xlApp;
object xlWbCol;
object xlWb;
object xlSheet;
object xlRangeUsdRng;
object xlRange;
object xlWsCol;
//~~> create new Excel instance
Type tp;
tp = Type.GetTypeFromProgID("Excel.Application");
xlApp = Activator.CreateInstance(tp);
object[] parameter = new object[1];
parameter[0] = true;
xlApp.GetType().InvokeMember("Visible", BindingFlags.SetProperty, null, xlApp, parameter);
xlApp.GetType().InvokeMember("UserControl", BindingFlags.SetProperty, null, xlApp, parameter);
//~~> Get the xlWb collection
xlWbCol = xlApp.GetType().InvokeMember("Workbooks", BindingFlags.GetProperty, null, xlApp, null);
//~~> Create a new xlWb
xlWb = xlWbCol.GetType().InvokeMember("Add", BindingFlags.InvokeMethod, null, xlWbCol, null);
//~~> Get the worksheet collection
xlWsCol = xlWb.GetType().InvokeMember("WorkSheets", BindingFlags.GetProperty, null, xlApp, null);
//~~> Create a new workxlSheet
xlSheet = xlWb.GetType().InvokeMember("Add", BindingFlags.InvokeMethod, null, xlWsCol, null);
//~~> Assign cell F5 to xlRange object for testing purpose
xlRange = xlSheet.GetType().InvokeMember("Cells", BindingFlags.GetProperty, null, xlSheet, new object[2] {5, 6 });
xlRange.GetType().InvokeMember("Value", BindingFlags.SetProperty, null, xlRange, new object[] { "1-1-2012" });
//~~> Assign UsedRange
xlRangeUsdRng = xlSheet.GetType().InvokeMember("UsedRange", BindingFlags.GetProperty, null, xlSheet, null);
//~~> Get the Columns
object cols = xlRangeUsdRng.GetType().InvokeMember("EntireColumn", BindingFlags.GetProperty, null, xlRangeUsdRng, null);
//~~> Autofit
cols.GetType().InvokeMember("AutoFit", BindingFlags.InvokeMethod, null, cols, null);
}