当我没有在线上放任何图片时，我收到错误。 [英] I get an error when I don't put any pictures on the line.

问题描述

byte [] bimage =（byte []）（new ImageConverter（）。ConvertTo（dataGridView1 [i，j] .Value，typeof （byte []）））;







//放入时所有行都没有显示错误图片，但如果我没有放置镇流器的图片，则会出错。



我尝试过的事情：

byte[] bimage = (byte[])(new ImageConverter().ConvertTo(dataGridView1[i, j].Value, typeof(byte[])));



//all the rows show no error when putting the picture but if I do not put a picture of the ballast, it gives an error.

What I have tried:

private void button5_Click（object sender，EventArgs e）

{

{

Microsoft.Office.Interop.Excel.Application uyg = new Microsoft.Office.Interop.Excel.Application（）;

uyg.Visible = true;

Microsoft.Office.Interop.Excel.Workbook kitap = uyg.Workbooks.Add（System.Reflection.Missing.Value）;

Microsoft。 Office.Interop.Excel.Worksheet sheet1 =（Microsoft.Office.Interop.Excel.Worksheet）kitap.Sheets [1];

Microsoft.Office.Interop.Excel.Range m yRange;

for（int i = 0;我< dataGridView1.Columns.Count; i ++）

{

myRange =（Microsoft.Office.Interop.Excel.Range）sheet1.Cells [1，i + 1];

myRange.Value2 = dataGridView1.Columns [i] .HeaderText;

for（int j = 0; j< dataGridView1.Rows.Count; j ++）

{

myRange =（Microsoft.Office.Interop.Excel.Range）sheet1.Cells [j + 2，i + 1];



if （dataGridView1 [i，j] .GetType（）== typeof（DataGridViewImageCell））

{

if（dataGridView1 [i，j] .Value！= null）

{

byte [] bimage =（byte []）（new ImageConverter（）。ConvertTo（dataGridView1 [i，j] .Value，typeof（byte []）） ）;



MemoryStream ms = new MemoryStream（bimage）;

Image image = Image.FromStream（ms）;

image.Save（@D：\ dosya.jpg）;

float Left =（float）（myRange .Left）;

float Top =（float）（myRange.Top）;

const float ImageSize = 32;

sheet1.Shapes。 AddPicture（@D：\ dosya.jpg，Microsoft.Office.Core.MsoTriState.msoFalse，Microsoft.Office.Core.MsoTriState.msoCTrue，Left，Top，ImageSize，ImageSize）;

myRange.RowHeight = ImageSize + 2;

File.Delete（@D：\ dosya.jpg）;



}

else {

myRange.Value2 = dataGridView1 [i，j] .Value;}

}

}

}

}

}

private void button5_Click(object sender, EventArgs e)
{
{
Microsoft.Office.Interop.Excel.Application uyg = new Microsoft.Office.Interop.Excel.Application();
uyg.Visible = true;
Microsoft.Office.Interop.Excel.Workbook kitap = uyg.Workbooks.Add(System.Reflection.Missing.Value);
Microsoft.Office.Interop.Excel.Worksheet sheet1 = (Microsoft.Office.Interop.Excel.Worksheet)kitap.Sheets[1];
Microsoft.Office.Interop.Excel.Range myRange;
for (int i = 0; i < dataGridView1.Columns.Count; i++)
{
myRange = (Microsoft.Office.Interop.Excel.Range)sheet1.Cells[1, i + 1];
myRange.Value2 = dataGridView1.Columns[i].HeaderText;
for (int j = 0; j < dataGridView1.Rows.Count; j++)
{
myRange = (Microsoft.Office.Interop.Excel.Range)sheet1.Cells[j + 2, i + 1];

if (dataGridView1[i, j].GetType() == typeof(DataGridViewImageCell))
{
if (dataGridView1[i, j].Value != null)
{
byte[] bimage = (byte[])(new ImageConverter().ConvertTo(dataGridView1[i, j].Value, typeof(byte[])));

MemoryStream ms = new MemoryStream(bimage);
Image image = Image.FromStream(ms);
image.Save(@"D:\dosya.jpg");
float Left = (float)(myRange.Left);
float Top = (float)(myRange.Top);
const float ImageSize = 32;
sheet1.Shapes.AddPicture(@"D:\dosya.jpg", Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoCTrue, Left, Top, ImageSize, ImageSize);
myRange.RowHeight = ImageSize + 2;
File.Delete(@"D:\dosya.jpg");

}
else {
myRange.Value2 = dataGridView1[i, j].Value;}
}
}
}
}
}

推荐答案

您已经在当我没有在线上放任何图片时出现错误。 [ ^ ]。你仍然没有告诉我们错误是什么。

You already posted this at I get an error when I don't put any pictures on the line.[^]. And you are still not telling us what the error is.

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