从字符串“＆amp; search”转换为“Integer”类型

Question

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtsearch.Click

Dim SearchData = Search.StoredProcedure4(txtsearch.Text)
DataGridView1.DataSource = SearchData

End Sub

从字符串“＆amp; search”转换为“Integer”类型无效...如何将字符串转换为整数？

Answer 1

Dim SearchData = Search.StoredProcedure4(txtsearch.Text)
int SearchDataInt = Convert.ToInt32(SearchData ) //or (int)SearchData 
DataGridView1.DataSource = SearchDataInt

只需在定义和显示之间添加此行。

Answer 2

string s = "&search";
foreach( char c in s)
{
Console.WriteLine(System.Convert.ToInt32(c));
}

Answer 3

您提取错误值的错误不是吗？ ＆amp; search看起来像是URL中的参数名称，而不是参数值。

int.TryParse（stringValue，out intValue）是将字符串解析为整数的方法。