C# IMEMODE屬性說明

http://www.codeguru.cn/database/Microsoft.Access.Visual.Basic.Reference/html/acproIMEMode.htm

 

 

【C#】只允許在文字框中輸入數字，以及將全形數字轉換為半形數字

 

//檢查所輸入的資料是否僅為數字或有效符號，以及將全形數字變為半形
        private void textBox3_KeyPress(object sender, KeyPressEventArgs e)
        {

            e.Handled = (e.KeyChar < '0' || e.KeyChar > '9') & (e.KeyChar < '０' || e.KeyChar > '９') && e.KeyChar != '/b';
            //e.Handled 在為true的時候，文字框中什麼都不輸入也不顯示。當所輸入的字元統統不在允許輸入的字元內時，e.Handled 就為true。
            if (e.KeyChar >= '０' & e.KeyChar <= '９')
            {
                e.KeyChar = quanbianban(e.KeyChar);
            }

        }
        //------------全形數字變半形數字-----------------

        public char quanbianban(char quan)
        {
            switch (quan)
            {

                case '０':
                    return '0';
                   
                case '１':
                    return '1';
                 
                case '２':
                    return '2';
                 
                case '３':
                    return '3';
               
                case '４':
                    return '4';
                
                case '５':
                    return '5';
               
                case '６':
                    return '6';
              
                case '７':
                    return '7';
                  
                case '８':
                    return '8';
                 
                case '９':
                    return '9';
                  
                default:
                    return '9';               

            }
        }
——本文來自暮鼓晨鐘-河工論壇『www.hgbbs.com』原帖地址：http://www.hgbbs.com/bbs/viewthread.php?tid=111015&fromuid=0