Fatal编程技术网
  • csharp/
  • C# 如何解决System.ArgumentOutOfRangeException异常？

C# 如何解决System.ArgumentOutOfRangeException异常？

c# asp.net gridview

C# 如何解决System.ArgumentOutOfRangeException异常？,c#,asp.net,gridview,C#,Asp.net,Gridview,我有一个带有多个数据列的网格和一个带有复选框的列。有一个名为appnumber的列，其中包含数字。现在我想选择选中行中的数字，并将它们放入数组中。我怎么做 <asp:GridView ID="gvAppeals" runat="server" BackColor="White" BorderColor="#CC9966" BorderStyle="None" BorderWidth="1px" CellPadding="4" Width="665px" AutoGenerateCo

我有一个带有多个数据列的网格和一个带有复选框的列。有一个名为appnumber的列，其中包含数字。现在我想选择选中行中的数字，并将它们放入数组中。我怎么做

<asp:GridView ID="gvAppeals" runat="server" BackColor="White" BorderColor="#CC9966" BorderStyle="None" BorderWidth="1px" CellPadding="4"
    Width="665px" AutoGenerateColumns="False" OnSelectedIndexChanged="gvAppeals_SelectedIndexChanged1"
    AllowPaging="True" PageSize="10" OnPageIndexChanging="gvAppeals_PageIndexChanging" OnRowDataBound="gvAppeals_RowDataBound">
    <Columns>
        <asp:BoundField DataField="App_no" HeaderText="APP NO">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:BoundField DataField="EMP_FULLNAME" HeaderText="FULL NAME">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:BoundField DataField="EMP_NIC_NO" HeaderText="NIC">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:BoundField DataField="EMP_BIRTHDAY" HeaderText="BIRTH DATE" DataFormatString="{0:yyyy-MM-dd}">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:TemplateField>
            <%--<HeaderTemplate>
                            <asp:CheckBox ID="chkHeader" runat="server" AutoPostBack="true" />
                        </HeaderTemplate>--%>
            <ItemTemplate>
                <asp:CheckBox ID="chkSelect" runat="server" />
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
    <FooterStyle BackColor="#FFFFCC" ForeColor="#330099" />
    <HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="White" HorizontalAlign="Left" />
    <PagerStyle BackColor="#FFFFCC" ForeColor="#330099" HorizontalAlign="Center" />
    <RowStyle BackColor="White" ForeColor="Black" />
    <SelectedRowStyle BackColor="#FFCC66" Font-Bold="True" ForeColor="#663399" />
    <SortedAscendingCellStyle BackColor="#FEFCEB" />
    <SortedAscendingHeaderStyle BackColor="#AF0101" />
    <SortedDescendingCellStyle BackColor="#F6F0C0" />
    <SortedDescendingHeaderStyle BackColor="#7E0000" />
</asp:GridView>

protected void btnConfirm_Click(object sender, EventArgs e)
    {
        //DataSet ds = new DataSet();
        int[] numbers;
        numbers = new int[gvAppeals.Rows.Count];
        int noOfRowsChecked = 0;

        foreach (GridViewRow row in gvAppeals.Rows)
        {
            int rowIndex = row.RowIndex;
            CheckBox chkrow = (CheckBox)row.FindControl("chkSelect");

            if (chkrow.Checked == true)
            {
                numbers[noOfRowsChecked] = Int32.Parse(gvAppeals.DataKeys[rowIndex]["App_no"].ToString());
                noOfRowsChecked++;
            }

            //update the dept by checking the selected appeal numbers 
            if (noOfRowsChecked > 0)
            {
                for (int i = 0; i < numbers.Length; i++)
                {
                    int appNo = numbers[i];
                    dba.confirmAppeal(appNo);
                }
            }
            else
            {
                WebMsgBox.Show("Please select an application to confirm");
            }
        }
    }
这是我到目前为止所做的代码

<asp:GridView ID="gvAppeals" runat="server" BackColor="White" BorderColor="#CC9966" BorderStyle="None" BorderWidth="1px" CellPadding="4"
    Width="665px" AutoGenerateColumns="False" OnSelectedIndexChanged="gvAppeals_SelectedIndexChanged1"
    AllowPaging="True" PageSize="10" OnPageIndexChanging="gvAppeals_PageIndexChanging" OnRowDataBound="gvAppeals_RowDataBound">
    <Columns>
        <asp:BoundField DataField="App_no" HeaderText="APP NO">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:BoundField DataField="EMP_FULLNAME" HeaderText="FULL NAME">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:BoundField DataField="EMP_NIC_NO" HeaderText="NIC">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:BoundField DataField="EMP_BIRTHDAY" HeaderText="BIRTH DATE" DataFormatString="{0:yyyy-MM-dd}">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:TemplateField>
            <%--<HeaderTemplate>
                            <asp:CheckBox ID="chkHeader" runat="server" AutoPostBack="true" />
                        </HeaderTemplate>--%>
            <ItemTemplate>
                <asp:CheckBox ID="chkSelect" runat="server" />
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
    <FooterStyle BackColor="#FFFFCC" ForeColor="#330099" />
    <HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="White" HorizontalAlign="Left" />
    <PagerStyle BackColor="#FFFFCC" ForeColor="#330099" HorizontalAlign="Center" />
    <RowStyle BackColor="White" ForeColor="Black" />
    <SelectedRowStyle BackColor="#FFCC66" Font-Bold="True" ForeColor="#663399" />
    <SortedAscendingCellStyle BackColor="#FEFCEB" />
    <SortedAscendingHeaderStyle BackColor="#AF0101" />
    <SortedDescendingCellStyle BackColor="#F6F0C0" />
    <SortedDescendingHeaderStyle BackColor="#7E0000" />
</asp:GridView>

protected void btnConfirm_Click(object sender, EventArgs e)
    {
        //DataSet ds = new DataSet();
        int[] numbers;
        numbers = new int[gvAppeals.Rows.Count];
        int noOfRowsChecked = 0;

        foreach (GridViewRow row in gvAppeals.Rows)
        {
            int rowIndex = row.RowIndex;
            CheckBox chkrow = (CheckBox)row.FindControl("chkSelect");

            if (chkrow.Checked == true)
            {
                numbers[noOfRowsChecked] = Int32.Parse(gvAppeals.DataKeys[rowIndex]["App_no"].ToString());
                noOfRowsChecked++;
            }

            //update the dept by checking the selected appeal numbers 
            if (noOfRowsChecked > 0)
            {
                for (int i = 0; i < numbers.Length; i++)
                {
                    int appNo = numbers[i];
                    dba.confirmAppeal(appNo);
                }
            }
            else
            {
                WebMsgBox.Show("Please select an application to confirm");
            }
        }
    }
C#代码

<asp:GridView ID="gvAppeals" runat="server" BackColor="White" BorderColor="#CC9966" BorderStyle="None" BorderWidth="1px" CellPadding="4"
    Width="665px" AutoGenerateColumns="False" OnSelectedIndexChanged="gvAppeals_SelectedIndexChanged1"
    AllowPaging="True" PageSize="10" OnPageIndexChanging="gvAppeals_PageIndexChanging" OnRowDataBound="gvAppeals_RowDataBound">
    <Columns>
        <asp:BoundField DataField="App_no" HeaderText="APP NO">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:BoundField DataField="EMP_FULLNAME" HeaderText="FULL NAME">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:BoundField DataField="EMP_NIC_NO" HeaderText="NIC">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:BoundField DataField="EMP_BIRTHDAY" HeaderText="BIRTH DATE" DataFormatString="{0:yyyy-MM-dd}">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:TemplateField>
            <%--<HeaderTemplate>
                            <asp:CheckBox ID="chkHeader" runat="server" AutoPostBack="true" />
                        </HeaderTemplate>--%>
            <ItemTemplate>
                <asp:CheckBox ID="chkSelect" runat="server" />
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
    <FooterStyle BackColor="#FFFFCC" ForeColor="#330099" />
    <HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="White" HorizontalAlign="Left" />
    <PagerStyle BackColor="#FFFFCC" ForeColor="#330099" HorizontalAlign="Center" />
    <RowStyle BackColor="White" ForeColor="Black" />
    <SelectedRowStyle BackColor="#FFCC66" Font-Bold="True" ForeColor="#663399" />
    <SortedAscendingCellStyle BackColor="#FEFCEB" />
    <SortedAscendingHeaderStyle BackColor="#AF0101" />
    <SortedDescendingCellStyle BackColor="#F6F0C0" />
    <SortedDescendingHeaderStyle BackColor="#7E0000" />
</asp:GridView>

protected void btnConfirm_Click(object sender, EventArgs e)
    {
        //DataSet ds = new DataSet();
        int[] numbers;
        numbers = new int[gvAppeals.Rows.Count];
        int noOfRowsChecked = 0;

        foreach (GridViewRow row in gvAppeals.Rows)
        {
            int rowIndex = row.RowIndex;
            CheckBox chkrow = (CheckBox)row.FindControl("chkSelect");

            if (chkrow.Checked == true)
            {
                numbers[noOfRowsChecked] = Int32.Parse(gvAppeals.DataKeys[rowIndex]["App_no"].ToString());
                noOfRowsChecked++;
            }

            //update the dept by checking the selected appeal numbers 
            if (noOfRowsChecked > 0)
            {
                for (int i = 0; i < numbers.Length; i++)
                {
                    int appNo = numbers[i];
                    dba.confirmAppeal(appNo);
                }
            }
            else
            {
                WebMsgBox.Show("Please select an application to confirm");
            }
        }
    }

protectedvoid btnConfirm\u单击（对象发送方，事件参数e）
{
//数据集ds=新数据集（）；
int[]数字；
数字=新整数[gv.Rows.Count]；
int noOfRowsChecked=0；
foreach（gridview.Rows中的行）
{
int rowIndex=row.rowIndex；
复选框chkrow=（复选框）row.FindControl（“chkSelect”）；
如果（chkrow.Checked==true）
{
numbers[noOfRowsChecked]=Int32.Parse（gv32.DataKeys[rowIndex][“App_no”].ToString（））；
noOfRowsChecked++；
}
//通过检查所选上诉编号更新部门
如果（noOfRowsChecked>0）
{
for（int i=0；i
只是一个温和的提醒，你需要在索引中减去一（-1）。这可能就是您获得System.ArgumentOutOfRangeException的原因。这只是一个温和的提醒，提醒您需要在索引中减去一（-1）。这可能就是您获取系统的原因。ArgumentOutOfRangeException

GridView中没有定义数据键，因此它总是超出范围。将
DataKeyNames
属性添加到GridView

<asp:GridView ID="gvAppeals" runat="server" BackColor="White" BorderColor="#CC9966" BorderStyle="None" BorderWidth="1px" CellPadding="4"
    Width="665px" AutoGenerateColumns="False" OnSelectedIndexChanged="gvAppeals_SelectedIndexChanged1"
    AllowPaging="True" PageSize="10" OnPageIndexChanging="gvAppeals_PageIndexChanging" OnRowDataBound="gvAppeals_RowDataBound">
    <Columns>
        <asp:BoundField DataField="App_no" HeaderText="APP NO">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:BoundField DataField="EMP_FULLNAME" HeaderText="FULL NAME">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:BoundField DataField="EMP_NIC_NO" HeaderText="NIC">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:BoundField DataField="EMP_BIRTHDAY" HeaderText="BIRTH DATE" DataFormatString="{0:yyyy-MM-dd}">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:TemplateField>
            <%--<HeaderTemplate>
                            <asp:CheckBox ID="chkHeader" runat="server" AutoPostBack="true" />
                        </HeaderTemplate>--%>
            <ItemTemplate>
                <asp:CheckBox ID="chkSelect" runat="server" />
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
    <FooterStyle BackColor="#FFFFCC" ForeColor="#330099" />
    <HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="White" HorizontalAlign="Left" />
    <PagerStyle BackColor="#FFFFCC" ForeColor="#330099" HorizontalAlign="Center" />
    <RowStyle BackColor="White" ForeColor="Black" />
    <SelectedRowStyle BackColor="#FFCC66" Font-Bold="True" ForeColor="#663399" />
    <SortedAscendingCellStyle BackColor="#FEFCEB" />
    <SortedAscendingHeaderStyle BackColor="#AF0101" />
    <SortedDescendingCellStyle BackColor="#F6F0C0" />
    <SortedDescendingHeaderStyle BackColor="#7E0000" />
</asp:GridView>

protected void btnConfirm_Click(object sender, EventArgs e)
    {
        //DataSet ds = new DataSet();
        int[] numbers;
        numbers = new int[gvAppeals.Rows.Count];
        int noOfRowsChecked = 0;

        foreach (GridViewRow row in gvAppeals.Rows)
        {
            int rowIndex = row.RowIndex;
            CheckBox chkrow = (CheckBox)row.FindControl("chkSelect");

            if (chkrow.Checked == true)
            {
                numbers[noOfRowsChecked] = Int32.Parse(gvAppeals.DataKeys[rowIndex]["App_no"].ToString());
                noOfRowsChecked++;
            }

            //update the dept by checking the selected appeal numbers 
            if (noOfRowsChecked > 0)
            {
                for (int i = 0; i < numbers.Length; i++)
                {
                    int appNo = numbers[i];
                    dba.confirmAppeal(appNo);
                }
            }
            else
            {
                WebMsgBox.Show("Please select an application to confirm");
            }
        }
    }

<asp:GridView ID="gvAppeals" runat="server" DataKeyNames="App_no" >
GridView中没有定义
数据键，因此它总是超出范围。将
DataKeyNames
属性添加到GridView


<asp:GridView ID="gvAppeals" runat="server" BackColor="White" BorderColor="#CC9966" BorderStyle="None" BorderWidth="1px" CellPadding="4"
    Width="665px" AutoGenerateColumns="False" OnSelectedIndexChanged="gvAppeals_SelectedIndexChanged1"
    AllowPaging="True" PageSize="10" OnPageIndexChanging="gvAppeals_PageIndexChanging" OnRowDataBound="gvAppeals_RowDataBound">
    <Columns>
        <asp:BoundField DataField="App_no" HeaderText="APP NO">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:BoundField DataField="EMP_FULLNAME" HeaderText="FULL NAME">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:BoundField DataField="EMP_NIC_NO" HeaderText="NIC">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:BoundField DataField="EMP_BIRTHDAY" HeaderText="BIRTH DATE" DataFormatString="{0:yyyy-MM-dd}">
            <HeaderStyle HorizontalAlign="Left" />
            <ItemStyle Font-Size="Small" HorizontalAlign="Left" VerticalAlign="Middle" />
        </asp:BoundField>
        <asp:TemplateField>
            <%--<HeaderTemplate>
                            <asp:CheckBox ID="chkHeader" runat="server" AutoPostBack="true" />
                        </HeaderTemplate>--%>
            <ItemTemplate>
                <asp:CheckBox ID="chkSelect" runat="server" />
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
    <FooterStyle BackColor="#FFFFCC" ForeColor="#330099" />
    <HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="White" HorizontalAlign="Left" />
    <PagerStyle BackColor="#FFFFCC" ForeColor="#330099" HorizontalAlign="Center" />
    <RowStyle BackColor="White" ForeColor="Black" />
    <SelectedRowStyle BackColor="#FFCC66" Font-Bold="True" ForeColor="#663399" />
    <SortedAscendingCellStyle BackColor="#FEFCEB" />
    <SortedAscendingHeaderStyle BackColor="#AF0101" />
    <SortedDescendingCellStyle BackColor="#F6F0C0" />
    <SortedDescendingHeaderStyle BackColor="#7E0000" />
</asp:GridView>



protected void btnConfirm_Click(object sender, EventArgs e)
    {
        //DataSet ds = new DataSet();
        int[] numbers;
        numbers = new int[gvAppeals.Rows.Count];
        int noOfRowsChecked = 0;

        foreach (GridViewRow row in gvAppeals.Rows)
        {
            int rowIndex = row.RowIndex;
            CheckBox chkrow = (CheckBox)row.FindControl("chkSelect");

            if (chkrow.Checked == true)
            {
                numbers[noOfRowsChecked] = Int32.Parse(gvAppeals.DataKeys[rowIndex]["App_no"].ToString());
                noOfRowsChecked++;
            }

            //update the dept by checking the selected appeal numbers 
            if (noOfRowsChecked > 0)
            {
                for (int i = 0; i < numbers.Length; i++)
                {
                    int appNo = numbers[i];
                    dba.confirmAppeal(appNo);
                }
            }
            else
            {
                WebMsgBox.Show("Please select an application to confirm");
            }
        }
    }



<asp:GridView ID="gvAppeals" runat="server" DataKeyNames="App_no" >





我会把
int[]numbers
变成一个列表
list numbers=new list（）
然后用
numbers.Add（）
我现在就试试。我会把
int[]numbers
变成一个列表
list numbers=new list（）
然后用
numbers.Add（）
我现在就试试。这取决于用法。如果在
for
循环中减去
-1
，像这样
for（int i=0；i<（numbers.Length-1）；i++）
它将永远不会到达最后一个元素。请尝试在代码上添加断点，并检查得到错误的行。在下面的行中获取错误------->numbers[noOfRowsChecked]=Int32。解析（gvApps.DataKeys[rowIndex][“应用程序编号”].ToString（））；如果这是您获得
System.ArgumentOutOfRangeException
，请尝试将其更改为数字[NoofRowChecked]=
Int32.Parse（gvApps.DataKeys[rowIndex-1][“应用程序编号”].ToString(‌​));这取决于用法。如果在
-1
for
循环中减去
-1
，像这样
for（int i=0；i<（numbers.Length-1）；i++）
它将永远不会到达最后一个元素。尝试在代码上添加断点，并检查得到错误的行。在下面的行中获取错误------->numbers[noOfRowsChecked]=Int32.Parse（gvwatches.DataKeys[rowIndex][“App_-no”].ToString（））；如果这是您获得的
System.ArgumentOutOfRangeException
，请尝试将其更改为数字[noOfRowsChecked]=
Int32.Parse（gvwatches.DataKeys[rowIndex-1][“App_-no”].ToString(‌​));