＆QUOT;不能被分配​​到 - 它只＆QUOT读取;在ConditionEx pression错误 [英] "cannot be assigned to -- it is read only" error on ConditionExpression

问题描述

我要创造条件日之间。

在我写的是这样的：

ConditionExpression modifiedOnCondition = new ConditionExpression();
modifiedOnCondition.AttributeName = "modifiedon";
modifiedOnCondition.Operator = ConditionOperator.Between;
modifiedOnCondition.Values = new Object[] { startDate, endDate };

的startDate 和结束日期是的DateTime 。我得到了 modifiedOnCondition.Values​​ 错误。它说：

startDate and endDate are DateTime. I got an error on modifiedOnCondition.Values. It says:

属性或索引Microsoft.Xrm.Sdk.Query.ConditionEx pression.Values​​'不能被分配​​到 - 它是只读的。

Property or indexer 'Microsoft.Xrm.Sdk.Query.ConditionExpression.Values' cannot be assigned to -- it is read only

我该如何解决这个问题？

How can I fix it?

推荐答案

您不能更改值属性对象被创建之后，只是把它作为参数 ConditionEx pression 构造器：

You can't change Values property after object has been created, just pass it as parameter in ConditionExpression constructor:

var modifiedOnCondition = new ConditionExpression(
    "modifiedon",
    ConditionOperator.Between,
    new Object[] { startDate, endDate });

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