如何解决如何用DataTable C#
如何用特殊字符之间的值替换字符串 并且应该与列名和 msgtemplate 文件名匹配。 我在下面试过。但它重复相同的味精值。
DataTable dtResponsesOUTBox = objDataAccess.getoutBox();
dtResponsesOUTBox.Columns.Add("NewmsgTemplate",typeof(System.String));
DataTable dtrecords = dtResponsesOUTBox.copy();
foreach (DaTarow row1 in dtResponsesOUTBox.Rows)
{
string Item = dtResponsesOUTBox.Rows[2]["Item"].ToString().Trim();
string trandate = dtResponsesOUTBox.Rows[3]["trndate"].ToString().Trim();
string result = Regex.Replace(strValue,"@@Item.*?@@",Item);
result = Regex.Replace(result,"@@trndate.*?@@",trandate);
row1["NewmsgTemplate"] = result;
}
dtrecords = dtResponsesOUTBox.copy();
输入:
项目交付日期 msgTemplate
笔记本电脑 12/2/2020 您的@@item@@ 交付地址为@@deLeverdate@@
书籍 10/2/2020 您的@@item@@ 是在@@deLeverdate@@ 交付的,
Abc 10/2/2020 您的@@item@@ 是在@@deLeverdate@@ 交付的,
预期输出:
NewmsgTemplateColumn 谢谢您的笔记本电脑于 12/02/2020 交付 谢谢 您的书已于 10/02/2020 交付 谢谢您的 ABC 已于 10/02/2020 交付
解决方法
你的问题没有描述清楚,所以我猜你想要得到下表。
Item | deleiverdate | msgTemplate | NewmsgTemplate
laptop | 12/2/2020 | Your @@item@@ is deliver at @@deleverdate@@ | Thank you Your laptop is deliver at 12/2/2020
books | 10/2/2020 | Your @@item@@ is deliver at @@deleverdate@@ | Thank you Your books is deliver at 10/2/2020
Abc | 10/2/2020 | Your @@item@@ is deliver at @@deleverdate@@ | Thank you Your Abc is deliver at 10/2/2020
我试图从你的代码中实现它:
string msgTemplate = "Your @@item@@ is deliver at @@deleverdate@@";
DataTable dtResponsesOUTBOX = new DataTable();
dtResponsesOUTBOX.Columns.Add("Item",typeof(System.String));
dtResponsesOUTBOX.Columns.Add("deleiverdate",typeof(System.String));
dtResponsesOUTBOX.Columns.Add("NewmsgTemplate",typeof(System.String));
dtResponsesOUTBOX.Rows.Add("laptop","12/2/2020");
dtResponsesOUTBOX.Rows.Add("books","10/2/2020");
dtResponsesOUTBOX.Rows.Add("Abc","10/2/2020");
foreach (DataRow row1 in dtResponsesOUTBOX.Rows)
{
string Item = row1["Item"].ToString();
string deleiverdate = row1["deleiverdate"].ToString();
string newmsg = Regex.Replace(msgTemplate,"@@item@@",Item);
newmsg = Regex.Replace(newmsg,"@@deleverdate@@",deleiverdate);
row1["NewmsgTemplate"] = newmsg;
Console.WriteLine("Thank you " + row1["NewmsgTemplate"]);
}
会有如下输出:
Thank you Your laptop is deliver at 12/2/2020
Thank you Your books is deliver at 10/2/2020
Thank you Your Abc is deliver at 10/2/2020
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