行值的加法 [英] Addition of row values

问题描述

我在GridView中取了checkbox并成功显示了已检查的值，但我想添加该数字.
我不明白我将附加编码放在哪里，那是什么?

I have taken checkbox within GridView and succeeded to display the checked value but i want to add that numbers.
I can''t understand where will I put addition coding and what is that?

StringBuilder str = new StringBuilder();
       // Select the checkboxes from the GridView control
       for (int i = 0; i < GridView2.Rows.Count; i++)
       {
           GridViewRow row = GridView2.Rows[i];
           bool isChecked = ((CheckBox)row.FindControl("CheckBox1")).Checked;
           if (isChecked)
           {
               // Column 1 is the "Rate" column of price
               str.Append(GridView2.Rows[i].Cells[1].Text);
           }
       }
       // prints out the result
       Response.Write(str.ToString());

推荐答案

从您的问题中还不清楚您遇到了什么问题-我认为英语不是您的母语?因此，我必须做出一些假设:
1)您有一个GridView，它显示两列或更多列.
2)其中之一是一个复选框，称为"CheckBox1"，并且用户(或您的代码)检查某些CheckBoxes，而不检查其他CheckBoxes.
3)如果选中了CheckBox，则将Rate列的值(第1列，或GridView中的第二列)包括在运行总计中.

如果正确，则:

It isn''t too clear from your question what problem you are having - I assume that English is not your native language? So, I will have to make some assumptions:
1) You have a GridView, which displays two or more columns.
2) One of these is a Checkbox, called "CheckBox1", and the user (or your code) checks some CheckBoxes, and not others.
3) If a CheckBox is checked, include the value of the Rate column (Column 1, or the second column in the GridView) in a running total.

If this is correct, then:

// Select the checkboxes from the GridView control
int totalRate = 0;
for (int i = 0; i < GridView2.Rows.Count; i++)
{
    GridViewRow row = GridView2.Rows[i];
    bool isChecked = ((CheckBox)row.FindControl("CheckBox1")).Checked;
    if (isChecked)
    {
        // Column 1 is the "Rate" column of price
        totalRate += int.Parse(GridView2.Rows[i].Cells[1].Text);
    }
}
// prints out the result
Response.Write(totalRate.ToString());

您可能需要将int更改为另一种数据类型-如果这样，请不要忘记在两个地方都进行更改！

如果这不正确，那么您要做什么?

You may need to change the int to another data type - if so do not forget to change in in both places!

If this is not correct, then what are you trying to do?

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