字符串数组赋值出错！
源代码如下public string strID;
public string strNum;
public string strType;
public string strCount;
public string strProdution;
public string strData;
public string strPlace;
public string strBranch;
public string strBackup;
public string strCharge;
public string strName;
public string strSql;
public static int intCount = 0;//控制数据组索引
public string [] strScoure = new string [9];//定义查询字符串数组
public int intAdd;//用来判断SQL语句数组数量
public void DatetimeJudge()
{
if (dateTimePicker1.Value > dateTimePicker2.Value)
{
MessageBox.Show("生产日期选择出错，请检查！");
}
if (dateTimePicker1.Value < dateTimePicker2.Value)
{
strData = "生产日期 between'"+dateTimePicker1.Value.Date+"'and'"+dateTimePicker2.Value.Date+"'";
}
if (dateTimePicker1.Value == dateTimePicker2.Value)
strData = "生产日期='" + dateTimePicker1.Value.Date + "'";
}
public void GetScoure(string strSql)
{
if (p == 1)
{
MyMean.OpenCon();
SqlCommand command4 = new SqlCommand(strSql, MyMean.MyCon);
dataGridView1.Rows.Clear();
SqlDataReader p_dataReader = command4.ExecuteReader();
while (p_dataReader.Read())
{
dataGridView1.Rows.Add(p_dataReader[0].ToString(),p_dataReader[1].ToString(),p_dataReader[2].ToString(),p_dataReader[3].ToString(),p_dataReader[4].ToString(),p_dataReader[5].ToString(),p_dataReader[6].ToString(),p_dataReader[7].ToString(),p_dataReader[8].ToString(),p_dataReader[9].ToString(),p_dataReader[10].ToString(),p_dataReader[11].ToString());
}
MyMean.CloseCon();
}
}
private void button6_Click(object sender, EventArgs e)
{
if (p == 1)
{
intCount = 0;
if (textBox1.Text != "")
{
strName = "name like '%" + //定义SQL字符串
textBox1.Text + "%'";
strCount[intCount] = strName;
intCount++;
}
if (textBox2.Text != "")
{
strNum = "编号 like '%" + //定义SQL字符串
textBox2.Text + "%'";
strCount[intCount] = strNum;
intCount++;
}
if (textBox3.Text != "")
{
strType = "型号 like '%" + //定义SQL字符串
textBox3.Text + "%'";
strCount[intCount] = strType;
intCount++;
}
if (textBox4.Text != "")
{
strProdution = "生产厂商 like '%" + //定义SQL字符串
textBox4.Text + "%'";
strCount[intCount] = strProdution;
intCount++;
}
if (textBox5.Text != "")
{
strPlace = "安装地点 like '%" + //定义SQL字符串
textBox5.Text + "%'";
strCount[intCount] = strPlace;
intCount++;
}
if (textBox6.Text != "")
{
strBranch = "所属部门 like '%" + //定义SQL字符串
textBox6.Text + "%'";
strCount[intCount] = strBranch;
intCount++;
}
if (textBox7.Text != "")
{
strCharge = "负责人 like '%" + //定义SQL字符串
textBox7.Text + "%'";
strCount[intCount] = strCharge;
intCount++;
}
if (comboBox1.Text != "")
{
strBackup = "生产厂商 like '%" + //定义SQL字符串
comboBox1.Text + "%'";
strCount[intCount] = strBackup;
intCount++;
}
if (checkBox1.Checked = true)
{
DatetimeJudge();
strCount[intCount] = strData;
intCount++;
}
for (int i = 0; i < strScoure.Length; i++)//遍历字符串集合
{
if (strScoure[i] != null)//判断字符是否为空
{
strSql += strScoure[i];//组合查询字符串
intAdd++;//开始记数
}
}
switch (intAdd)//使用多路选择语句组合查询语句
{
case 0:
strSql = "select * from 设备设施信息表";
break;
case 1:
strSql = "select * from 设备设施信息表 where " + strScoure[0];
break;
case 2:
strSql = "select * from 设备设施信息表 where " + strScoure[0] +
" and " + strScoure[1];
break;
case 3:
strSql = "select * from 设备设施信息表 where " + strScoure[0] +
" and " + strScoure[1] + " and " + strScoure[2];
break;
case 4:
strSql = "select * from 设备设施信息表 where " + strScoure[0] +
" and " + strScoure[1] + " and " + strScoure[2] +
" and " + strScoure[3] + " and " + strScoure[4];
break;
case 5:
strSql = "select * from 设备设施信息表 where " + strScoure[0] +
" and " + strScoure[1] + " and " + strScoure[2] +
" and " + strScoure[3] + " and " + strScoure[4] + " and " + strScoure[5];
break;
case 6:
strSql = "select * from 设备设施信息表 where " + strScoure[0] +
" and " + strScoure[1] + " and " + strScoure[2] +
" and " + strScoure[3] + " and " + strScoure[4] + " and " + strScoure[5] + " and " + strScoure[6];
break;
case 7:
strSql = "select * from 设备设施信息表 where " + strScoure[0] +
" and " + strScoure[1] + " and " + strScoure[2] +
" and " + strScoure[3] + " and " + strScoure[4] + " and " + strScoure[5] + " and " + strScoure[6] + " and " + strScoure[7];
break;
case 8:
strSql = "select * from 设备设施信息表 where " + strScoure[0] +
" and " + strScoure[1] + " and " + strScoure[2] +
" and " + strScoure[3] + " and " + strScoure[4] + " and " + strScoure[5] + " and " + strScoure[6] + " and " + strScoure[7] + " and " + strScoure[8];
break;
case 9:
strSql = "select * from 设备设施信息表 where " + strScoure[0] +
" and " + strScoure[1] + " and " + strScoure[2] +
" and " + strScoure[3] + " and " + strScoure[4] + " and " + strScoure[5] + " and " + strScoure[6] + " and " + strScoure[7] + " and " + strScoure[8] + " and " + strScoure[9];
break;
}
GetScoure(strSql);//查询数据库中数据
intAdd = 0;//记数器置0
intCount = 0;//记灵器置0
strSql = "";//重置SQL语句
for (int i = 0; i < strScoure.Length; i++)
{
if (strScoure[i] != null)
{
strScoure[i] = null;//清空字符串数组内容
}
}
}
}
private void checkBox1_CheckedChanged(object sender, EventArgs e)
{
if (checkBox1.Checked = true)
{
dateTimePicker1.Enabled = true;
dateTimePicker2.Enabled = true;
}
else
{
dateTimePicker1.Enabled = false;
dateTimePicker2.Enabled = false;
}
}
运行后报错
皆为
strCount[intCount] = XXXX;
intCount++;
处。
错误为：错误4无法对属性或索引器“string.this[int]”赋值 -- 它是只读的；错误5无法将类型“string”隐式转换为“char”
求高手解惑，在另外一个例子程序中，这段代码完全没有任何问题，很是困惑啊 --------------------编程问答-------------------- 太长了没看完，
1、估计是有属性不能赋值的，如果是你手写的是不没加get属性？
2、那就加强制转换为char不就行了 --------------------编程问答-------------------- 建议你加个try catch 把错误日志打出来再看是什么原因。 --------------------编程问答-------------------- strCount不是数组，是不是写错了。应该是strScoure。 --------------------编程问答-------------------- 哥们你的代码也太长了点，捡个重点的copy上来啥，你搞个try{}catch{}包装哈子 --------------------编程问答-------------------- 太长了，好好调试一下。
欢迎光临我的博客 --------------------编程问答-------------------- public string [] strScoure = new string [9];//定义查询字符串数组
public string strScoure = new string [9];
补充：.NET技术 , C#
