Spread被鼠标单击选中的行设置为蓝色怎么做？

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本帖最后由 dapsjj 于 2016-11-4 16:52 编辑

Spread被鼠标单击选中的行设置为蓝色怎么做？代码怎么写呢？
想要达到图片中的效果。

dexteryao · dexteryao

您好，您可以重写 SelectionRenderer

public class SelectionRenderer : FarPoint.Win.Spread.ISelectionRenderer
{
   public void PaintSelection(Graphics g, int x, int y, int width, int height)
   {
      SolidBrush selectionBrush = new SolidBrush(Color.Blue);
      g.FillRectangle(selectionBrush, x, y, width, height);
      selectionBrush.Dispose();
   }
}

SelectionRenderer sr = new SelectionRenderer();
fpSpread1.SelectionRenderer = sr;

dapsjj · dapsjj

本帖最后由 dapsjj 于 2016-11-4 19:22 编辑

dexteryao 发表于 2016-11-4 17:57
您好，您可以重写 SelectionRenderer

您好，我用的是C#,请问这个代码要新建一个.cs的类去写还是写到Form1.Designer.cs？还是说在前面属性栏的动作里有这个方法，双击后自动进入这个方法去写？

dapsjj · dapsjj

本帖最后由 dapsjj 于 2016-11-7 09:03 编辑

dexteryao 发表于 2016-11-4 17:57
您好，您可以重写 SelectionRenderer

您好，我代码按照您说的重写了SelectionRenderer，但是没有生效，请问哪里不对呢？33，34行。213-221行是变背景色的代码。
代码如下：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Runtime.Remoting.Messaging;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using MY.BLL;
using MY.Common;
namespace PcSystemMain
{
public partial class frmGetActualProduction : Form
{
#region
private string connPCDB = null;
private CommonPara cp = new CommonPara();
private string flag = "";//初始化被选中的记录的标志位空
private int checked_count = 0;//计算被选中的checkbox的数量
private int bin = -1;
#endregion
private delegate bool DoWorkDelegate();
public frmGetActualProduction()
{
InitializeComponent();
this.loadingPanel1.OnRotateStateChanged += new LoadingPanel.RotateStateChangedHandler(loadingPanel1_OnRotateStateChanged);
SelectionRenderer sr = new SelectionRenderer();
sprshow.SelectionRenderer = sr;
}
private void cmdExit_Click(object sender, EventArgs e)
{
this.Close();
}
private void frmGetActualProduction_Load(object sender, EventArgs e)
{
try
{
connPCDB = cp.GetConString();
SqlHelper sh = new SqlHelper(connPCDB);
DataSet ds = sh.ExecuteDatasetSQL("SELECT c1,c2,0 as c3, c4 FROM tabel1 ");
setSpreadData(ds.Tables[0]);
}
catch (Exception)
{
}
}
private void setSpreadData(DataTable spdt)
{
if (this.sprshow.ActiveSheet.RowCount > 0)
{
this.sprshow.ActiveSheet.Rows.Count = 0;
}
this.sprshow.ActiveSheet.Rows.Count = spdt.Rows.Count;
DataRowCollection rows = spdt.Rows;
int rowCount = rows.Count;
int nowRow = 0;
for (int i = 0; i < rowCount; i++)
{
sprshow.ActiveSheet.Cells[nowRow, 0].Value = rows[i]["A"].ToString();
sprshow.ActiveSheet.Cells[nowRow, 1].Value = rows[i]["B"].ToString();
sprshow.ActiveSheet.Cells[nowRow, 2].Value = rows[i]["C"].ToString();
sprshow.ActiveSheet.Cells[nowRow, 3].Value = rows[i]["D"].ToString();
nowRow++;
}
}
private void sprshow_ButtonClicked(object sender, FarPoint.Win.Spread.EditorNotifyEventArgs e)
{
checked_count = 0;
for (int i = 0; i < sprshow.Sheets[0].Rows.Count; i++)
{
if (checked_count <= 1)
{
flag = sprshow.Sheets[0].Cells[i, 2].Value.ToString();//复选框是否被选中
if (flag == "True")//"True"为选中,"0"为未选中。
{
int col4_value = int.Parse(sprshow.Sheets[0].Cells[i, 3].Value.ToString());//第4列
if (col4_value == 1)
{
sprshow.Sheets[0].Cells[i, 2].Value = 0;//清除被选的状态
bin = int.Parse(sprshow.Sheets[0].Cells[i, 0].Value.ToString());
MessageBox.Show(bin);
break;
}
else
{
checked_count++;
}
}
}
else
{
MessageBox.Show("只能选一个.");
checked_count = 0;
break;
}
}
}
void loadingPanel1_OnRotateStateChanged()
{
this.Invoke(new Action(delegate()
{
this.sprshow.Visible = !this.sprshow.Visible;
this.Cmdchace.Enabled = !this.Cmdchace.Enabled;
this.cmdGetActualProduction.Enabled = !this.cmdGetActualProduction.Enabled;
this.cmdExit.Enabled = !this.cmdExit.Enabled;
}));
}
private bool DoWork()
{
System.Threading.Thread.Sleep(10000);
return true;
}
private void DoWorkCallBack(IAsyncResult ar)
{
AsyncResult result = (AsyncResult)ar;
DoWorkDelegate caller = (DoWorkDelegate)result.AsyncDelegate;
bool bResult = caller.EndInvoke(ar);
this.loadingPanel1.Stop();
}
private void cmdGetActualProduction_Click(object sender, EventArgs e)
{
if (MessageBox.Show("", MessageBoxButtons.OKCancel, MessageBoxIcon.Question) == DialogResult.Cancel)
{
return;
}
else { //点击的是"OK"按钮
int count = 0;//计算被选择的复选框数量
string status = "";
for (int i = 0; i < sprshow.Sheets[0].Rows.Count; i++)
{
status = sprshow.Sheets[0].Cells[i, 2].Value.ToString();//复选框是否被选中
if (status == "True")//"True"为选中,"0"为未选中。
{
count++;
}
}
if (count == 0)
{
MessageBox.Show("请选择.");
return;
}
else if (count > 1)
{
MessageBox.Show("只能选一个.");
return;
}
else//count == 1
{
try
{
connPCDB = cp.GetConString();
SqlHelper sh = new SqlHelper(connPCDB);
sh.Param = sh.GetNewParam();
sh.Param.AddParam("@intBin", SqlDbType.Int, bin);
DataSet ds = sh.ExecuteDatasetSP("AcquireMeterActualResults", ref sh.Param, 3000);
}
catch (Exception)
{
}
}
}
}
private void Cmdchace_Click(object sender, EventArgs e)
{
for (int i = 0; i < sprshow.Sheets[0].Rows.Count; i++) {
int col4_value = int.Parse(sprshow.Sheets[0].Cells[i, 3].Value.ToString());//第4列
if (col4_value==1)
{
for (int j = 0; j <= i;j++ )
{
sprshow.Sheets[0].Cells[j, 2].Value = 0;
}
MessageBox.Show("不能全选.");
break;
}
sprshow.Sheets[0].Cells[i, 2].Value = true;
}
}
}
public class SelectionRenderer : FarPoint.Win.Spread.ISelectionRenderer
{
public void PaintSelection(Graphics g, int x, int y, int width, int height)
{
SolidBrush selectionBrush = new SolidBrush(Color.Blue);
g.FillRectangle(selectionBrush, x, y, width, height);
selectionBrush.Dispose();
}
}
}