如何转换并将字符串/字符串值分配给Windows窗体中的列表？ [英] How to convert and assign string/String value to list in Windows Forms?

问题描述

我想将字符串值转换为List.How转换为。

这是我的代码。

Hi,
I want to convert string value to List.How to Convert this.
Here is My Code.

private void TestGridData_CellContentClick(object sender, DataGridViewCellEventArgs e)
   {
                   DataGridViewRow row = new DataGridViewRow();
                   List<string> TestName = new List<string>();
                   int I = TestGridData.CurrentCell.ColumnIndex;
                   string Head = TestGridData.Columns[I].Name;
                   if (Head == "check")
                   {
                       row = TestGridData.CurrentRow;
                       int row2 = row.Index;
                       TestCost = Convert.ToInt32(TestGridData[2, row2].Value);
                       string Name = TestGridData[1, row2].Value.ToString();
                   }

                  // TestName=Name as List<string>;

                   sum = sum + TestCost;
                   txtcost.Text = sum.ToString();

   }

存储在名称和列表中的字符串值存储在TestName中。如何将此名称转换为List.In这是我试过的注释行，但是没有得到正确的输出。



请帮我输出正确的输出

And the string value stored in Name and list stored in TestName.How to convert this Name to List.In this the commented line i tried but i didn't get correct output.

Please help me to get correct output

推荐答案

单个字符串不是列表（它是一个字符集，每个字符都可以通过索引器访问），因此将单个字符串转换为列表并不是大多数人所做的事情。

您可以通过将字符串添加到现有列表来实现：

A single string isn't a list (it's a Collection of characters, each of which you can access with an indexer) so converting a single string into a list isn't something most people do.
You can do it by adding the string to your existing list:

if (Head == "check")
    {
    row = TestGridData.CurrentRow;
    int row2 = row.Index;
    TestCost = Convert.ToInt32(TestGridData[2, row2].Value);
    string Name = TestGridData[1, row2].Value.ToString();
    TestName.Add(Name)
    }

你好，

如果你想添加一个项目在列表然后

Hello ,
If you want to add an item in List then

TestName.Add(Name)

和一件事，你必须< b>将范围列为范围，以便它可以包含不同的项目。

有关List（t）.Add方法的更多信息，请按照

列出< t> .Add方法

and one thing , you have to declare the List out side the scope ,so that it can contain different item .
For more information about List(t).Add method follow
List<t>.Add Method

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