[英]Binding multiple values to different variables in c# using for loop
我应该如何在不使用索引号的情况下绑定值。 如上所述,如果可能的话,如何在这里使用 forLoop 。 在查询中我 gor 14 行和 4 列。
public class SLRInvestmentPrev
{
[DbCol("BOOK_VALUE")]
public double BOOK_VALUE { get; set; }
[DbCol("INSTRUMENT_ID")]
public int instrument_id { get; set; }
}
Public void Compute()
{
var slrinvestmentPrev = Database.BindList<SLRInvestmentPrev>(Transaction, @"Query here");
View["BOOK_VALUE_HTM0"] = slrinvestmentPrev[0].BOOK_VALUE;
View["BOOK_VALUE_HTM1"] = slrinvestmentPrev[1].BOOK_VALUE;
View["BOOK_VALUE_HTM2"] = slrinvestmentPrev[2].BOOK_VALUE;
View["BOOK_VALUE_HTM3"] = slrinvestmentPrev[3].BOOK_VALUE;
View["BOOK_VALUE_HFT1"] = slrinvestmentPrev[4].BOOK_VALUE;
View["BOOK_VALUE_HFT2"] = slrinvestmentPrev[5].BOOK_VALUE;
View["BOOK_VALUE_HFT3"] = slrinvestmentPrev[6].BOOK_VALUE;
View["BOOK_VALUE_HFT4"] = slrinvestmentPrev[7].BOOK_VALUE;
View["BOOK_VALUE_HFT5"] = slrinvestmentPrev[8].BOOK_VALUE;
View["BOOK_VALUE_AFS1"] = slrinvestmentPrev[9].BOOK_VALUE;
View["BOOK_VALUE_AFS2"] = slrinvestmentPrev[10].BOOK_VALUE;
View["BOOK_VALUE_AFS3"] = slrinvestmentPrev[11].BOOK_VALUE;
View["BOOK_VALUE_AFS4"] = slrinvestmentPrev[12].BOOK_VALUE;
View["BOOK_VALUE_AFS5"] = slrinvestmentPrev[13].BOOK_VALUE;
}
鉴于你的书是 HTM0 到 AFS5,你可以做类似的事情
List<String> booklist = new List<string>(new String[] { "BOOK_VALUE_HTM0", "BOOK_VALUE_HTM1", "BOOK_VALUE_HTM2",<.....> "BOOK_VALUE_AFS5" } ); // or populate from some other means
int index = 0;
foreach (String sbook in booklist)
{
View[sbook] = slrinvestmentPrev[index].BOOK_VALUE;
index++
}
如何使用 for 循环将右侧索引值绑定到不同的变量,或者如果假设行数小于硬编码索引值,是否有任何方法可以使代码简短且无错误?
所以你需要一种将你的名字绑定到索引的方法,一种使用Dictionary
:
var nameIndexes = new Dictionary<int, string>()
{
{ 0, "BOOK_VALUE_HTM0" }, { 1, "BOOK_VALUE_HTM1" }, { 2, "BOOK_VALUE_HTM2" }, { 3, "BOOK_VALUE_HTM3" },
{ 4, "BOOK_VALUE_HFT1" }, { 5, "BOOK_VALUE_HFT2" }, { 6, "BOOK_VALUE_HFT3" }, { 7, "BOOK_VALUE_HFT4" }, { 8, "BOOK_VALUE_HFT5" },
{ 9, "BOOK_VALUE_AFS1" }, { 10, "BOOK_VALUE_AFS2" }, { 11, "BOOK_VALUE_AFS3" }, { 12, "BOOK_VALUE_AFS4" }, { 13, "BOOK_VALUE_AFS5" }
};
for(int i = 0; i < slrinvestmentPrev.Count; i++)
{
View[nameIndexes[i]] = slrinvestmentPrev[i].BOOK_VALUE;
}
如果索引总是从 0 开始并且没有间隙,您还可以使用List<string>
或string[]
。
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