從Gridview中獲取一個已選中復選框的值

Question

我有一個Gridview生成如下：

<asp:GridView ID="Cash_GridView" runat="server" CssClass="Grid" >
<Columns>
<asp:TemplateField>
     <ItemTemplate>
        <asp:CheckBox ID="MemberCheck" runat="server" />
     </ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="Loan_Acno" HeaderText="Loan A/C number" />
</Columns>
</asp:Gridview>
<asp:Button ID="CashPayButton" runat="server" Text="Pay Dividend" CssClass="bluesome" OnClick="CashPayButton_Click" />

並且當我點擊特定行上的復選框時，現在還有上面的按鈕點擊事件我希望整個行在后面的代碼中的按鈕點擊事件中得到計算

protected void CashPayButton_Click(object sender, EventArgs e)
 { }

Answer 1

這是你想要的嗎？

protected void CashPayButton_Click(object sender, EventArgs e)
{
    foreach (GridViewRow row in Cash_GridView.Rows)
    {
        if (row.RowType == DataControlRowType.DataRow)
        {
            CheckBox c = (CheckBox)row.FindControl("MemberCheck");
            if (c.Checked)
            {
                //do calculation with other controls in the row
            }
        }
    }           
}

（或者如果單擊復選框立即進行計算，那么這將不起作用）

Answer 2

假設這是您必須單擊進行計算的唯一按鈕，您可以執行以下操作（請注意我正在使用Load事件），當您單擊按鈕並發生回發時將調用它。

（由於回發而單擊按鈕時會發生計算）

    protected void Page_Load(object sender, EventArgs e)
    {
        if (IsPostBack)
        {
            ProcessRows();
        }
    }

    private  void ProcessRows()
    {
        foreach (GridViewRow oneRow in Cash_GridView.Rows)
        {
            CheckBox checkBoxControl = oneRow.FindControl("MemberCheck") as CheckBox;

            if (checkBoxControl != null && checkBoxControl.Checked)
            {
                // You have a row with a 'Checked' checkbox.

                // You can access other controls like I have accessed the checkbox
                // For example, If you have a textbox named "YourTextBox":
                TextBox textBoxSomething = oneRow.FindControl("YourTextBox") as TextBox;
                if (textBoxSomething != null)
                {
                    // Use the control value for whatever purpose you want.
                    // Example:
                    if (!string.IsNullOrWhiteSpace(textBoxSomething.Text))
                    {
                        int amount = 0;
                        int.TryParse(textBoxSomething.Text, out amount);

                        // Now you can use the amount for any calculation
                    }
                }
            }
        }
    }

Answer 3

使用以下代碼：

protected void CashPayButton_Click(object sender, EventArgs e)
{


    foreach(Gridviewrow gvr in Cash_GridView.Rows)
    {
       if(((CheckBox)gvr.findcontrol("MemberCheck")).Checked == true)
       {

          int uPrimaryid= gvr.cells["uPrimaryID"];
       }
    }
}

Answer 4

        foreach (GridViewRow r in GridView1.Rows)
        {
            if ((r.Cells[2].Controls.OfType<CheckBox>().ToList()[0]).Checked == true)
            {
               //your code.
            }
        }