本文介绍了如何使用C#格式化导出的Excel文件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
您好,我正在使用Visual C#,并且有一种将DataGridView导出到Excel文件的方法,我的问题是如何为Excel文件赋予格式,使其看起来更好,例如使标题看起来更好粗体,并用蓝色等着色.
我正在使用的方法是这样的:
Hi i''m working with Visual C# and i''ve a method that exports a DataGridView to an Excel File, my question is how can I give format to the Excel file so it looks better, like making the headers look bold, and coloured with blue, etc.
The method that i''m using is this:
/// <summary>
/// Exports a passed datagridview to an Excel worksheet.
/// If captions is true, grid headers will appear in row 1.
/// Data will start in row 2.
/// </summary>
/// <param name="datagridview"></param>
/// <param name="captions"></param>
public static void Excel(DataGridView datagridview, bool captions = true)
{
object objApp_Late;
object objBook_Late;
object objBooks_Late;
object objSheets_Late;
object objSheet_Late;
object objRange_Late;
object[] Parameters;
string[] headers = new string[datagridview.ColumnCount];
string[] columns = new string[datagridview.ColumnCount];
int i = 0;
int c = 0;
for (c = 0; c < datagridview.ColumnCount; c++)
{
headers[c] = datagridview.Rows[0].Cells[c].OwningColumn.Name.ToString();
i = c + 65;
columns[c] = Convert.ToString((char)i);
}
try
{
// Get the class type and instantiate Excel.
Type objClassType;
objClassType = Type.GetTypeFromProgID("Excel.Application");
objApp_Late = Activator.CreateInstance(objClassType);
//Get the workbooks collection.
objBooks_Late = objApp_Late.GetType().InvokeMember("Workbooks",
BindingFlags.GetProperty, null, objApp_Late, null);
//Add a new workbook.
objBook_Late = objBooks_Late.GetType().InvokeMember("Add",
BindingFlags.InvokeMethod, null, objBooks_Late, null);
//Get the worksheets collection.
objSheets_Late = objBook_Late.GetType().InvokeMember("Worksheets",
BindingFlags.GetProperty, null, objBook_Late, null);
//Get the first worksheet.
Parameters = new Object[1];
Parameters[0] = 1;
objSheet_Late = objSheets_Late.GetType().InvokeMember("Item",
BindingFlags.GetProperty, null, objSheets_Late, Parameters);
if (captions)
{
// Create the headers in the first row of the sheet
for (c = 0; c < datagridview.ColumnCount; c++)
{
//Get a range object that contains cell.
Parameters = new Object[2];
Parameters[0] = columns[c] + "1";
Parameters[1] = Missing.Value;
objRange_Late = objSheet_Late.GetType().InvokeMember("Range",
BindingFlags.GetProperty, null, objSheet_Late, Parameters);
//Write Headers in cell.
Parameters = new Object[1];
Parameters[0] = headers[c];
objRange_Late.GetType().InvokeMember("Value", BindingFlags.SetProperty,
null, objRange_Late, Parameters);
}
}
// Now add the data from the grid to the sheet starting in row 2
for (i = 0; i < datagridview.RowCount; i++)
{
for (c = 0; c < datagridview.ColumnCount; c++)
{
//Get a range object that contains cell.
Parameters = new Object[2];
Parameters[0] = columns[c] + Convert.ToString(i + 2);
Parameters[1] = Missing.Value;
objRange_Late = objSheet_Late.GetType().InvokeMember("Range",
BindingFlags.GetProperty, null, objSheet_Late, Parameters);
//Write Headers in cell.
Parameters = new Object[1];
Parameters[0] = datagridview.Rows[i].Cells[headers[c]].Value.ToString();
objRange_Late.GetType().InvokeMember("Value", BindingFlags.SetProperty,
null, objRange_Late, Parameters);
}
}
//Return control of Excel to the user.
Parameters = new Object[1];
Parameters[0] = true;
objApp_Late.GetType().InvokeMember("Visible", BindingFlags.SetProperty,
null, objApp_Late, Parameters);
objApp_Late.GetType().InvokeMember("UserControl", BindingFlags.SetProperty,
null, objApp_Late, Parameters);
}
catch (Exception theException)
{
String errorMessage;
errorMessage = "Error: ";
String.Format("{0} {1} {2}", theException.Message, "Line:", theException.Source);
MessageBox.Show(errorMessage, "Error");
}
}
提前谢谢.
最好的问候.
Thanks in advance.
Best Regards.
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