我想创建一个程序,用户可以在datagridview中对单元格进行着色,然后将datagridview保存为图像。但是,当我按照需要生成我的datagridview时,我遇到了范围问题。保存超出范围C#
我想不出一种很好的(而且很快)的方式来重构这种方式是有道理的。如何避免我的datagridview超出范围在这种情况下?
谢谢!
public partial class Form2 : Form
{
bool erasing = false;
public Form2()
{
InitializeComponent();
}
private void Form2_Load(object sender, EventArgs e)
{
dataGridView1.ColumnCount = Properties.Settings.Default.Width;
dataGridView1.RowCount = Properties.Settings.Default.Height;
dataGridView1.RowHeadersVisible = false;
dataGridView1.ColumnHeadersVisible = false;
dataGridView1.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells;
dataGridView1.AutoSizeRowsMode = DataGridViewAutoSizeRowsMode.AllCells;
dataGridView1.AutoSize = true;
dataGridView1.ClearSelection();
dataGridView1.DefaultCellStyle.SelectionBackColor = Color.Black;
dataGridView1.CellClick += new DataGridViewCellEventHandler(dataGridView1_CellClick);
}
void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
{
if (erasing)
{
dataGridView1.DefaultCellStyle.SelectionBackColor = Color.White;
dataGridView1[e.ColumnIndex, e.RowIndex].Style.BackColor = Color.White;
}
else
{
dataGridView1.DefaultCellStyle.SelectionBackColor = Color.Black;
dataGridView1[e.ColumnIndex, e.RowIndex].Style.BackColor = Color.Black;
}
}
private void checkBox1_CheckedChanged(object sender, EventArgs e)
{
if (checkBox1.Checked)
{
erasing = true;
}
else
{
erasing = false;
}
}
private void savegviewImg()
{
Bitmap bmap = new Bitmap(DataGridView1.Bounds.Width, DataGridView1.Bounds.Height);
DataGridView1.DrawToBitmap(bmap, new Rectangle(1, 1, DataGridView1.Width, DataGridView1.Height));
bmap.Save("C:\\HelpMehStackOFlowYoureMyOnlyHope.jpeg", System.Drawing.Imaging.ImageFormat.Jpeg);
}
}
}
它在哪里创建,它在哪里超出范围? – nvoigt
你知道它是窗体的属性而不是局部变量,对吧?因此范围是整个班级。 –
那么我被告知“DataGridView1”不存在于它的当前上下文中。这是一个范围问题是不是?当我在saveviewImg方法 – Christopher