C# 无法将“System.Data.DataRowView”类型的对象转换为“System.IConvertible”类型
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Unable to cast object of type 'System.Data.DataRowView' to type 'System.IConvertible'
提问by forum
I m using in C# Code
我在 C# 代码中使用
int i = Convert.ToInt32(ddlDivisionId.SelectedValue);
at that time this type of error accrued..
当时产生了这种类型的错误..
Unable to cast object of type 'System.Data.DataRowView' to type 'System.IConvertible'
how can i solve it ?
我该如何解决？
Please help
请帮忙
回答by Chris
It looks like your ddlDivisionId.SelectedValueis returning a DataRowView. I assume you bound a DataTable or similar to your dropdown list (assuming that is what we are looking at).
看起来您ddlDivisionId.SelectedValue正在返回一个DataRowView. 我假设您绑定了一个 DataTable 或类似于您的下拉列表（假设这是我们正在查看的）。
In this case you will need to treat the ddlDivisionId.SelectedValueas a DataRowView (probably casting to that object first) to get the value out of it... I assume something like:
在这种情况下，您需要将ddlDivisionId.SelectedValue视为 DataRowView （可能首先转换为该对象）以从中获取值......我假设如下：
int i = Convert.ToInt32(((DataRowView)ddlDivisionId.SelectedValue)["id"]);
Here you should replace "id" with whatever the name of your field is in your datatable that you want to get out as an integer.
在这里，您应该将“id”替换为您想要作为整数输出的数据表中的任何字段名称。
回答by malik saifullah
int i = Convert.ToInt32(ddlDivisionId.SelectedValue.ToString());
add .ToString in last it will work
最后添加 .ToString 它将起作用
