c# - 更改数据网格中特定行的颜色 C# windows ce compact framework

Question

我正在使用 compact framework 2.0 在我的 windows ce handheld 上开发一个 c# 应用程序。我有一个像下面这样的网格

name        location  
----------------------
John          US
Flex          UK    

我使用数据网格来形成网格。注意:DataGrid(new System.Windows.Forms.DataGrid()) 不是 DataGridView。网格上方有一个文本框。如果用户在文本框中输入 uk，我必须更改数据网格中第二行的颜色。我如何实现它？？

 private System.Windows.Forms.DataGrid scnDataGrd = new System.Windows.Forms.DataGrid();

我添加了一个名为 status 的列。我想在那里显示一张图片。如果文本框中的文本匹配。

向表格添加列并根据 csv 填充值:

if (data.StartsWith("Coloumns"))
        data = data.Substring(index + 1, data.Length - (index + 1));
    data = data.Trim(); 
    string[] values = data.Split(',');
    // Add the index on the column on which data is stored in csv
    List<int> csvIndex = new List<int>();
    for (int i = 0; i < values.Length; i++)
    {
        values[i] = values[i].Trim();
        if (values[i] != "Status")
            csvIndex.Add(csvHeaders.IndexOf(values[i]));                        
    }

    rfidindex = (csvHeaders.IndexOf("RFID") == -1) ? csvHeaders.IndexOf("rfid") : csvHeaders.IndexOf("RFID");
    //Image myImage = new Bitmap(Assembly.GetExecutingAssembly().GetManifestResourceStream("search.png"));
     //ImageConverter imageConverter = new ImageConverter();
    Image img = AssetGatherMobileQuickTraQ.Properties.Resources.search;
        //Properties.Resources.my_image;
    string csvdata = strRdr.ReadToEnd();
    csvdata = csvdata.Replace('\r', ' ');
    string[] tagDets = csvdata.Split(new char[] { '\n' });
    csvItems = new Hashtable();
    DataTable dataTable1 = (DataTable)scnDataGrd.DataSource;

    for (int i = 0; i < tagDets.Length; i++)
    {
        string[] individTagDet = tagDets[i].Split(new char[] { ',' });

        if (individTagDet.Length <= 1)
            break;

        csvItems.Add(individTagDet[rfidindex].Replace("\"", string.Empty).Trim(), individTagDet);                                                                       
        DataRow row = dataTable1.NewRow();
        row.BeginEdit();
        //System.Drawing.Image imgTest = System.Drawing.Image. FromFile("C:\\Test.jpg");
        //System.Drawing.Image img = System.Drawing.Image.ReferenceEquals
        //dataTable1.Columns
        Bitmap image1 = new System.Drawing.Bitmap(System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase) + "\\search.png");


        //scnDataGrd.Dara
        row[0] = image1;
        //DataGrid
        for (int j = 0; j < 3; j++)
        {
            row[j+1] = individTagDet[csvIndex[j]].Replace("\"",string.Empty).Trim();                            
        }
        //scnDataGrd.TableStyles

        csvRfidList.Add(individTagDet[rfidindex].Replace("\"", string.Empty).Trim());
        missingTagList.Add(individTagDet[rfidindex].Replace("\"", string.Empty).Trim());

        row.EndEdit();
        dataTable1.Rows.Add(row);
        scnDataGrd.DataSource = dataTable1;
    }

如果文本经过处理，它会到达这里:

DataTable dataTable = (DataTable)scnDataGrd.DataSource;
int index1 = -1;
bool found = false;
DataGridTableStyle ts = new DataGridTableStyle();


foreach (DataRow dr in dataTable.Rows)
{
    index1++;
    if (dr[tableColIndex].ToString() == textValue)
    {
        scnDataGrd.Select(index1);
        scnDataGrd.SelectionForeColor = Color.Red;
        break;
    }
    else {

        dr[0] = "Not Found";
    }
}

在 Status Coloumn 中，它显示为 System.Data.Bitmap 而不是图像

Answer 1

你不能像那样提供图像，你必须为此制作自定义 ImageView ，但如果你想要 thisfrom 复选框，你可以这样实现:

if (data.StartsWith("Coloumns"))
    data = data.Substring(index + 1, data.Length - (index + 1));
data = data.Trim(); 
string[] values = data.Split(',');
// Add the index on the column on which data is stored in csv
List<int> csvIndex = new List<int>();
for (int i = 0; i < values.Length; i++)
{
    values[i] = values[i].Trim();
    if (values[i] != "Status")
        csvIndex.Add(csvHeaders.IndexOf(values[i]));                        
}

rfidindex = (csvHeaders.IndexOf("RFID") == -1) ? csvHeaders.IndexOf("rfid") : csvHeaders.IndexOf("RFID");
//Image myImage = new Bitmap(Assembly.GetExecutingAssembly().GetManifestResourceStream("search.png"));
 //ImageConverter imageConverter = new ImageConverter();
Image img = AssetGatherMobileQuickTraQ.Properties.Resources.search;
    //Properties.Resources.my_image;
string csvdata = strRdr.ReadToEnd();
csvdata = csvdata.Replace('\r', ' ');
string[] tagDets = csvdata.Split(new char[] { '\n' });
csvItems = new Hashtable();
DataTable dataTable1 = (DataTable)scnDataGrd.DataSource;

for (int i = 0; i < tagDets.Length; i++)
{
    string[] individTagDet = tagDets[i].Split(new char[] { ',' });

    if (individTagDet.Length <= 1)
        break;

    csvItems.Add(individTagDet[rfidindex].Replace("\"", string.Empty).Trim(), individTagDet);                                                                       
    DataRow row = dataTable1.NewRow();
    row.BeginEdit();
    //System.Drawing.Image imgTest = System.Drawing.Image. FromFile("C:\\Test.jpg");
    //System.Drawing.Image img = System.Drawing.Image.ReferenceEquals
    //dataTable1.Columns
    Bitmap image1 = new System.Drawing.Bitmap(System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase) + "\\search.png");


    //scnDataGrd.Dara
    row[0] = image1;
    //DataGrid
    for (int j = 0; j < 3; j++)
    {
        row[j+1] = individTagDet[csvIndex[j]].Replace("\"",string.Empty).Trim();                            
    }
    //scnDataGrd.TableStyles

    csvRfidList.Add(individTagDet[rfidindex].Replace("\"", string.Empty).Trim());
    missingTagList.Add(individTagDet[rfidindex].Replace("\"", string.Empty).Trim());



    row.EndEdit();
    dataTable1.Rows.Add(row);

    DataColumn cCurrent = new DataColumn("Current", typeof(bool));
    dataTable1.Rows.Add(cCurrent);
    scnDataGrd.DataSource = dataTable1;
}

在您的标准中，您可以像这样实现条件..

 DataTable dataTable = (DataTable)scnDataGrd.DataSource;
        int index1 = -1;
        bool found = false;
        DataGridTableStyle ts = new DataGridTableStyle();


        foreach (DataRow dr in dataTable.Rows)
        {
            index1++;
            if (dr[tableColIndex].ToString() == textValue)
            {
                scnDataGrd.Select(index1);
                scnDataGrd.SelectionForeColor = Color.Red;

                dr["Current"] = true;
                break;
            }
            else
            {

                dr[0] = "Not Found";
            }
        }

电流在

dr["Current"] = true;

是我们之前在倒数第三行实现的 DataColumn。在以前的代码上。