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c# - 隐藏打印页面中的特定列c#

转载 作者:太空宇宙 更新时间:2023-11-03 21:35:54 25 4
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我想在打印页面中隐藏该列。

这是显示 ID 列仍然可见的图像:

enter image description here

我想隐藏 ID 列。

这是我正在使用的代码,我已经声明了 this.dataGridView.Columns["ID"].Visible = false ,但是 ID 列是仍然可见。

private void PrintPreview(object sender, EventArgs e)
{
PrintPreviewDialog _PrintPreview = new PrintPreviewDialog();
printDocument1.DefaultPageSettings.Landscape = true;
_PrintPreview.Document = printDocument1;
((Form)_PrintPreview).WindowState = FormWindowState.Maximized;
_PrintPreview.ShowDialog();

this.dataGridView1.Columns["ID"].Visible = false;
}

private void printDocument1_BeginPrint(object sender, PrintEventArgs e)
{
try
{
strFormat = new StringFormat();
strFormat.Alignment = StringAlignment.Center;
strFormat.LineAlignment = StringAlignment.Center;
strFormat.Trimming = StringTrimming.EllipsisCharacter;

arrColumnLefts.Clear();
arrColumnWidths.Clear();
iCellHeight = 0;
iRow = 0;
bFirstPage = true;
bNewPage = true;

iTotalWidth = 0;

foreach (DataGridViewColumn dgvGridCol in dataGridView1.Columns)
{
iTotalWidth += dgvGridCol.Width;
}
}

catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}

private void printDocument1_PrintPage(object sender, PrintPageEventArgs e)
{
try
{
//Set the left margin
int iLeftMargin = e.MarginBounds.Left;

//Set the top margin
int iTopMargin = e.MarginBounds.Top;

//Whether more pages have to print or not
bool bMorePagesToPrint = false;

int iTmpWidth = 0;

int width = 500;

int height = 90;

//For the first page to print set the cell width and header height
if (bFirstPage)
{
foreach (DataGridViewColumn GridCol in dataGridView1.Columns)
{
iTmpWidth = (int)(Math.Floor((double)((double)GridCol.Width / (double)iTotalWidth * (double)iTotalWidth * ((double)e.MarginBounds.Width / (double)iTotalWidth))));

iHeaderHeight = (int)(e.Graphics.MeasureString(GridCol.HeaderText, GridCol.InheritedStyle.Font, iTmpWidth).Height) + 11;

// Save width and height of headres
arrColumnLefts.Add(iLeftMargin);
arrColumnWidths.Add(iTmpWidth);
iLeftMargin += iTmpWidth;
}
}

//Loop till all the grid rows not get printed
while (iRow <= dataGridView1.Rows.Count - 1)
{
DataGridViewRow GridRow = dataGridView1.Rows[iRow];

//Set the cell height
iCellHeight = GridRow.Height + 5;

int iCount = 0;

//Check whether the current page settings allo more rows to print
if (iTopMargin + iCellHeight >= e.MarginBounds.Height + e.MarginBounds.Top)
{
bNewPage = true;
bFirstPage = false;
bMorePagesToPrint = true;
break;
}

else
{
if (bNewPage)
{
//Draw Header
e.Graphics.DrawString("Database Summary", new Font(dataGridView1.Font, FontStyle.Bold), Brushes.Black, e.MarginBounds.Left, e.MarginBounds.Top - e.Graphics.MeasureString("Database Summary", new Font(dataGridView1.Font, FontStyle.Bold), e.MarginBounds.Width).Height - 13);

String strDate = DateTime.Now.ToLongDateString() + " " + DateTime.Now.ToShortTimeString();

//Draw Date
e.Graphics.DrawString(strDate, new Font(dataGridView1.Font, FontStyle.Regular), Brushes.Black, e.MarginBounds.Left + (e.MarginBounds.Width - e.Graphics.MeasureString(strDate, new Font(dataGridView1.Font, FontStyle.Regular), e.MarginBounds.Width).Width), e.MarginBounds.Top - e.Graphics.MeasureString("Database Summary", new Font(new Font(dataGridView1.Font, FontStyle.Regular), FontStyle.Regular), e.MarginBounds.Width).Height - 13);

//Draw Image
e.Graphics.DrawImage(pb1.Image, new Rectangle(300, 0, width, height));

//Draw Columns
iTopMargin = e.MarginBounds.Top;

foreach (DataGridViewColumn GridCol in dataGridView1.Columns)
{
e.Graphics.FillRectangle(new SolidBrush(Color.Aqua), new Rectangle((int)arrColumnLefts[iCount], iTopMargin, (int)arrColumnWidths[iCount], iHeaderHeight));

e.Graphics.DrawRectangle(Pens.Black, new Rectangle((int)arrColumnLefts[iCount], iTopMargin, (int)arrColumnWidths[iCount], iHeaderHeight));

e.Graphics.DrawString(GridCol.HeaderText, GridCol.InheritedStyle.Font, new SolidBrush(GridCol.InheritedStyle.ForeColor), new RectangleF((int)arrColumnLefts[iCount], iTopMargin, (int)arrColumnWidths[iCount], iHeaderHeight), strFormat);

iCount++;
}

bNewPage = false;
iTopMargin += iHeaderHeight;
}

iCount = 0;

//Draw Columns Contents
foreach (DataGridViewCell Cel in GridRow.Cells)
{
if (Cel.Value != null)
{
e.Graphics.DrawString(Cel.Value.ToString(), Cel.InheritedStyle.Font, new SolidBrush(Cel.InheritedStyle.ForeColor = System.Drawing.Color.Blue), new RectangleF((int)arrColumnLefts[iCount], (float)iTopMargin, (int)arrColumnWidths[iCount], (float)iCellHeight), strFormat);
}

//Drawing Cells Borders
e.Graphics.DrawRectangle(Pens.Red, new Rectangle((int)arrColumnLefts[iCount], iTopMargin, (int)arrColumnWidths[iCount], iCellHeight));

iCount++;
}
}

iRow++;
iTopMargin += iCellHeight;
}

//If more lines exist, print another page.
if (bMorePagesToPrint)
{
e.HasMorePages = true;
}

else
{
e.HasMorePages = false;
}
}

catch (Exception exc)
{
MessageBox.Show(exc.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}

任何帮助我如何解决这个问题?

谢谢!

非常感谢您的回答!

最佳答案

我认为问题出在printDocument1_PrintPage:

foreach (DataGridViewColumn GridCol in dataGridView1.Columns)
{
e.Graphics.FillRectangle(new SolidBrush(Color.Aqua), new Rectangle((int)arrColumnLefts[iCount], iTopMargin, (int)arrColumnWidths[iCount], iHeaderHeight));

e.Graphics.DrawRectangle(Pens.Black, new Rectangle((int)arrColumnLefts[iCount], iTopMargin, (int)arrColumnWidths[iCount], iHeaderHeight));

e.Graphics.DrawString(GridCol.HeaderText, GridCol.InheritedStyle.Font, new SolidBrush(GridCol.InheritedStyle.ForeColor), new RectangleF((int)arrColumnLefts[iCount], iTopMargin, (int)arrColumnWidths[iCount], iHeaderHeight), strFormat);

iCount++;
}

您正在遍历 ALL 列并打印它们的值。所以你应该跳过 ID 列。请记住,将特定列的 Visible 属性更改为 false 不会将其从 dataGridView1.Columns 集合中隐藏。

无论如何,实现目标的一种简单方法:

foreach (DataGridViewColumn GridCol in dataGridView1.Columns)
{
if (GridCol.Name != "ID")
{
e.Graphics.FillRectangle(new SolidBrush(Color.Aqua), new Rectangle((int)arrColumnLefts[iCount], iTopMargin, (int)arrColumnWidths[iCount], iHeaderHeight));

e.Graphics.DrawRectangle(Pens.Black, new Rectangle((int)arrColumnLefts[iCount], iTopMargin, (int)arrColumnWidths[iCount], iHeaderHeight));

e.Graphics.DrawString(GridCol.HeaderText, GridCol.InheritedStyle.Font, new SolidBrush(GridCol.InheritedStyle.ForeColor), new RectangleF((int)arrColumnLefts[iCount], iTopMargin, (int)arrColumnWidths[iCount], iHeaderHeight), strFormat);

iCount++;
}
}

关于c# - 隐藏打印页面中的特定列c#,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/21902737/

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