C#为datagridview行中的相同值着色
假设我有一个充满行的datagridview。 现在,为了使某些数据更清晰,我想给某些单元格的背景上色。 不过有一些警告,我想在其中着色的列的数量可能会有所不同。 为了让事情更清楚,我将绘制一个假的数据网格:C#为datagridview行中的相同值着色,c#,datagridview,colors,C#,Datagridview,Colors,假设我有一个充满行的datagridview。 现在,为了使某些数据更清晰,我想给某些单元格的背景上色。 不过有一些警告,我想在其中着色的列的数量可能会有所不同。 为了让事情更清楚,我将绘制一个假的数据网格: Name Thing2 col1 col2 col3 tes test 1 1 2 t2t ers 3 3 3 der zoef 2 3 1 现在,col1-col3单元格需要着色,这取决于它们的值。第一列中的单元格将始
Name Thing2 col1 col2 col3
tes test 1 1 2
t2t ers 3 3 3
der zoef 2 3 1
现在,col1-col3单元格需要着色,这取决于它们的值。第一列中的单元格将始终为绿色(根据惯例),与之不同的单元格将被染成红色。 因此,第一行将有col1和col2颜色为绿色,col3颜色为红色等等。
有什么好办法解决这个问题吗?我建议使用CellFormating事件
/// <summary>
/// Applies coloring to the result rows in the dataGrid
/// </summary>
private void ApplyColoring()
{
if (dataGridView1.DataSource != null)
{
// hardmap a color to a column
IDictionary<Int32, Color> colorDictionary = new Dictionary<Int32, Color>();
colorDictionary.Add(6, Color.FromArgb(194, 235, 211));
colorDictionary.Add(7, Color.Salmon);
colorDictionary.Add(8, Color.LightBlue);
colorDictionary.Add(9, Color.LightYellow);
colorDictionary.Add(10, Color.LightGreen);
colorDictionary.Add(11, Color.LightCoral);
colorDictionary.Add(12, Color.Blue);
colorDictionary.Add(13, Color.Yellow);
colorDictionary.Add(14, Color.Green);
colorDictionary.Add(15, Color.White);
IList<String> checkedValues = new List<String>();
// first we loop through all the rows
foreach (DataGridViewRow gridRow in dataGridView1.Rows)
{
IDictionary<String, Int32> checkedVal = new Dictionary<String, Int32>();
// then we loop through all the data columns
int maxCol = dnsList.Count + 6;
for (int columnLoop = 6; columnLoop < maxCol; columnLoop++)
{
gridRow.Cells[columnLoop].Style.BackColor = Color.FromArgb(194, 235, 211);
string current = gridRow.Cells[columnLoop].Value.ToString();
for (int checkLoop = 6; checkLoop < maxCol; checkLoop++)
{
string check = gridRow.Cells[checkLoop].Value.ToString();
if (!current.Equals(check))
{
if (checkedVal.Keys.Contains(current))
{
gridRow.Cells[columnLoop].Style.BackColor = colorDictionary[checkedVal[current]];
}
else
{
gridRow.Cells[columnLoop].Style.BackColor = colorDictionary[columnLoop];
checkedVal.Add(current, columnLoop);
}
}
}
}
}
}
}
首先使用e.RowIndex
获取与当前行关联的对象,然后根据当前列(e.ColumnIndex
)和对象的属性为当前单元格着色
private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
if (e.RowIndex >= customerBindingSource.Count)
return;
switch (e.ColumnIndex)
{
case 3:
Customer customer = (Customer)customerBindingSource[e.RowIndex];
if (customer.Salary > 1000)
e.CellStyle.BackColor = Color.Red;
break;
}
}
我建议使用CellFormating事件
/// <summary>
/// Applies coloring to the result rows in the dataGrid
/// </summary>
private void ApplyColoring()
{
if (dataGridView1.DataSource != null)
{
// hardmap a color to a column
IDictionary<Int32, Color> colorDictionary = new Dictionary<Int32, Color>();
colorDictionary.Add(6, Color.FromArgb(194, 235, 211));
colorDictionary.Add(7, Color.Salmon);
colorDictionary.Add(8, Color.LightBlue);
colorDictionary.Add(9, Color.LightYellow);
colorDictionary.Add(10, Color.LightGreen);
colorDictionary.Add(11, Color.LightCoral);
colorDictionary.Add(12, Color.Blue);
colorDictionary.Add(13, Color.Yellow);
colorDictionary.Add(14, Color.Green);
colorDictionary.Add(15, Color.White);
IList<String> checkedValues = new List<String>();
// first we loop through all the rows
foreach (DataGridViewRow gridRow in dataGridView1.Rows)
{
IDictionary<String, Int32> checkedVal = new Dictionary<String, Int32>();
// then we loop through all the data columns
int maxCol = dnsList.Count + 6;
for (int columnLoop = 6; columnLoop < maxCol; columnLoop++)
{
gridRow.Cells[columnLoop].Style.BackColor = Color.FromArgb(194, 235, 211);
string current = gridRow.Cells[columnLoop].Value.ToString();
for (int checkLoop = 6; checkLoop < maxCol; checkLoop++)
{
string check = gridRow.Cells[checkLoop].Value.ToString();
if (!current.Equals(check))
{
if (checkedVal.Keys.Contains(current))
{
gridRow.Cells[columnLoop].Style.BackColor = colorDictionary[checkedVal[current]];
}
else
{
gridRow.Cells[columnLoop].Style.BackColor = colorDictionary[columnLoop];
checkedVal.Add(current, columnLoop);
}
}
}
}
}
}
}
首先使用e.RowIndex
获取与当前行关联的对象,然后根据当前列(e.ColumnIndex
)和对象的属性为当前单元格着色
private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
if (e.RowIndex >= customerBindingSource.Count)
return;
switch (e.ColumnIndex)
{
case 3:
Customer customer = (Customer)customerBindingSource[e.RowIndex];
if (customer.Salary > 1000)
e.CellStyle.BackColor = Color.Red;
break;
}
}
如果将数据添加到网格视图后,您可以遍历行/列并编程各种检查,然后根据需要指定背景色
foreach(DatGridViewEow row in datagridview1.Rows)
{
for(int i=3;i<5;i++)
{
DataGridViewCell cell = row.cells[i];
cell.style.backcolor = Color.Red;
}
}
foreach(datagridview1.Rows中的DatGridViewEow行)
{
对于(int i=3;i如果在将数据添加到网格视图后,您可以迭代行/列并编程各种检查,然后根据需要指定背景色
foreach(DatGridViewEow row in datagridview1.Rows)
{
for(int i=3;i<5;i++)
{
DataGridViewCell cell = row.cells[i];
cell.style.backcolor = Color.Red;
}
}
foreach(datagridview1.Rows中的DatGridViewEow行)
{
for(int i=3;i希望稍微改变@Petr响应。使用此选项,您可以为行设置唯一的颜色,即使您有数千行。对于每个唯一值,它们都是与其关联的颜色。只需传递一个不超过32位的int值
private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
switch (e.ColumnIndex)
{
case 3:
Customer customer = (Customer)customerBindingSource[e.RowIndex];
e.CellStyle.BackColor = Color.FromArgb(customer.Salary); // set unique color for each value
break;
}
}
希望稍微改变@Petr响应。使用此选项,您可以为行设置唯一的颜色,即使您有数千行。对于每个唯一值,它们都是与其关联的颜色。只需传递一个不超过32位的int值
private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
switch (e.ColumnIndex)
{
case 3:
Customer customer = (Customer)customerBindingSource[e.RowIndex];
e.CellStyle.BackColor = Color.FromArgb(customer.Salary); // set unique color for each value
break;
}
}
所有的建议都帮助我找到了下面的解决方案,尽管Petr会得到V,因为他是第一个了解我使用cellformatting事件的人
/// <summary>
/// Applies coloring to the result rows in the dataGrid
/// </summary>
private void ApplyColoring()
{
if (dataGridView1.DataSource != null)
{
// hardmap a color to a column
IDictionary<Int32, Color> colorDictionary = new Dictionary<Int32, Color>();
colorDictionary.Add(6, Color.FromArgb(194, 235, 211));
colorDictionary.Add(7, Color.Salmon);
colorDictionary.Add(8, Color.LightBlue);
colorDictionary.Add(9, Color.LightYellow);
colorDictionary.Add(10, Color.LightGreen);
colorDictionary.Add(11, Color.LightCoral);
colorDictionary.Add(12, Color.Blue);
colorDictionary.Add(13, Color.Yellow);
colorDictionary.Add(14, Color.Green);
colorDictionary.Add(15, Color.White);
IList<String> checkedValues = new List<String>();
// first we loop through all the rows
foreach (DataGridViewRow gridRow in dataGridView1.Rows)
{
IDictionary<String, Int32> checkedVal = new Dictionary<String, Int32>();
// then we loop through all the data columns
int maxCol = dnsList.Count + 6;
for (int columnLoop = 6; columnLoop < maxCol; columnLoop++)
{
gridRow.Cells[columnLoop].Style.BackColor = Color.FromArgb(194, 235, 211);
string current = gridRow.Cells[columnLoop].Value.ToString();
for (int checkLoop = 6; checkLoop < maxCol; checkLoop++)
{
string check = gridRow.Cells[checkLoop].Value.ToString();
if (!current.Equals(check))
{
if (checkedVal.Keys.Contains(current))
{
gridRow.Cells[columnLoop].Style.BackColor = colorDictionary[checkedVal[current]];
}
else
{
gridRow.Cells[columnLoop].Style.BackColor = colorDictionary[columnLoop];
checkedVal.Add(current, columnLoop);
}
}
}
}
}
}
}
//
///将着色应用于dataGrid中的结果行
///
私有void ApplyColoring()
{
if(dataGridView1.DataSource!=null)
{
//将颜色硬映射到列
IDictionary colorDictionary=新字典();
添加(6,Color.FromArgb(194235 211));
颜色字典。添加(7,颜色。三文鱼);
颜色字典。添加(8,颜色。浅蓝色);
颜色字典。添加(9,颜色。浅黄色);
颜色字典。添加(10,颜色。浅绿色);
添加(11,Color.LightCoral);
颜色字典。添加(12,颜色。蓝色);
颜色字典。添加(13,颜色。黄色);
颜色字典。添加(14,颜色。绿色);
颜色字典。添加(15,颜色。白色);
IList checkedValues=新列表();
//首先,我们遍历所有行
foreach(DataGridViewRow gridRow在dataGridView1.Rows中)
{
IDictionary checkedVal=新字典();
//然后我们循环遍历所有的数据列
int maxCol=dnsList.Count+6;
for(int columnLoop=6;columnLoop
编辑:1月20日,带颜色的字典映射到(可能)可以着色的列。在我的应用程序中,我们永远不会得到超过10个列,但您可以通过使用MOD操作或w/e轻松地重新开始。所有建议都帮助我找到了以下解决方案,尽管Petr会得到V,因为他是第一个了解我使用cellformatting的人t
/// <summary>
/// Applies coloring to the result rows in the dataGrid
/// </summary>
private void ApplyColoring()
{
if (dataGridView1.DataSource != null)
{
// hardmap a color to a column
IDictionary<Int32, Color> colorDictionary = new Dictionary<Int32, Color>();
colorDictionary.Add(6, Color.FromArgb(194, 235, 211));
colorDictionary.Add(7, Color.Salmon);
colorDictionary.Add(8, Color.LightBlue);
colorDictionary.Add(9, Color.LightYellow);
colorDictionary.Add(10, Color.LightGreen);
colorDictionary.Add(11, Color.LightCoral);
colorDictionary.Add(12, Color.Blue);
colorDictionary.Add(13, Color.Yellow);
colorDictionary.Add(14, Color.Green);
colorDictionary.Add(15, Color.White);
IList<String> checkedValues = new List<String>();
// first we loop through all the rows
foreach (DataGridViewRow gridRow in dataGridView1.Rows)
{
IDictionary<String, Int32> checkedVal = new Dictionary<String, Int32>();
// then we loop through all the data columns
int maxCol = dnsList.Count + 6;
for (int columnLoop = 6; columnLoop < maxCol; columnLoop++)
{
gridRow.Cells[columnLoop].Style.BackColor = Color.FromArgb(194, 235, 211);
string current = gridRow.Cells[columnLoop].Value.ToString();
for (int checkLoop = 6; checkLoop < maxCol; checkLoop++)
{
string check = gridRow.Cells[checkLoop].Value.ToString();
if (!current.Equals(check))
{
if (checkedVal.Keys.Contains(current))
{
gridRow.Cells[columnLoop].Style.BackColor = colorDictionary[checkedVal[current]];
}
else
{
gridRow.Cells[columnLoop].Style.BackColor = colorDictionary[columnLoop];
checkedVal.Add(current, columnLoop);
}
}
}
}
}
}
}
//
///将着色应用于dataGrid中的结果行
///
私有void ApplyColoring()
{
if(dataGridView1.DataSource!=null)
{
//将颜色硬映射到列
IDictionary colorDictionary=新字典();
添加(6,Color.FromArgb(194235 211));
颜色字典。添加(7,颜色。三文鱼);
颜色字典。添加(8,颜色。浅蓝色);
颜色字典。添加(9,颜色。浅黄色);
颜色字典。添加(10,颜色。浅绿色);
添加(11,Color.LightCoral);
颜色字典。添加(12,颜色。蓝色);
颜色字典。添加(13,颜色。黄色);
颜色字典。添加(14,颜色。绿色);
颜色字典。添加(15,颜色。白色);
IList checkedValues=新列表();
//首先,我们遍历所有行