为什么我的确认框没有显示onclientclick按钮 [英] why my confirm box not showing when onclientclick of button

问题描述

我需要帮助，目前我有gridview with checkbox，我想显示确认框，当我点击按钮没有选中复选框。我已经尝试了一些东西，因为它没有显示onclientclick，它只显示功能里面的内容点击事件。



作为参考请在我的代码下方找到，

i need help, currently i have gridview with checkbox, i want to show confirm box when i click button with no of checkbox checked.already i try something according that its not showing the onclientclick, its only showing the function what inside the click event.

for reference pls find below my code,

<ItemTemplate>
 <asp:CheckBox ID="chkSelect" runat="server" OnCheckedChanged="chk_OnCheckedChanged" AutoPostBack="true" />
</ItemTemplate>

c＃c​​ode

c# code

protected void btnReturn_Click(object sender, EventArgs e)
        {
            lblMsg.Text = string.Empty;

            List<int> selectedIds = GetSelectedIds();
            if (selectedIds.Count > 0)
            {
                for (int i = 0; i < selectedIds.Count; i++)
                {
                    Loan obj = engine.GetLoan(selectedIds[i]);
                    if (obj != null)
                    {
                        obj.LoanStatusDate = DateTime.Now;
                        obj.Status = LoanStatus.RETURNED.ToString();
                        obj.ProcessedBy = ConvertEngine.GetInteger(Session[SessionNames.CurrentUserID.ToString()].ToString());
                        obj.Remarks = "File is returned to Registry.";

                        if (engine.ReturnLoan(obj))
                            lblMsg.Text += WebEngine.GenerateMessage(obj.FileInfo.FRN + Constants.SuccessfulReturnedMessage, string.Empty, MessageType.Normal);
                        else
                            lblMsg.Text += WebEngine.GenerateMessage(obj.FileInfo.FRN + Constants.ErrorReturningMessage, string.Empty, MessageType.Error);
                    }
                }
            }

            BindGrid(0);


            Session[stateList] = null;
        }

        private List<int> GetSelectedIds()
        {
            List<int> selectedIds = new List<int>();
            for (int i = 0; i < gvList.Rows.Count; i++)
            {
                GridViewRow row = gvList.Rows[i];
                bool isChecked = ((CheckBox)row.FindControl("chkSelect")).Checked;

                if (isChecked)
                {
                    selectedIds.Add(ConvertEngine.GetInteger(gvList.DataKeys[i].Value.ToString()));
                }
            }

            if (selectedIds.Count == 0)
                lblMsg.Text = WebEngine.GenerateMessage(Constants.ValidationRequiredSelectionMessage, string.Empty, MessageType.Info);

            return selectedIds;
        }

        protected void chk_OnCheckedChanged(object sender, EventArgs e)
        {
            int j = 0;
            for (int i = 0; i < gvList.Rows.Count; i++)
            {
                GridViewRow row = gvList.Rows[i];
                bool isChecked = ((CheckBox)row.FindControl("chkSelect")).Checked;

                if (isChecked)
                {
                    j = j + 1;
                }
            }

            btnReturn.Attributes["OnClientClick"] = "javascript : return confirm('you selected " + j.ToString() + " checkboxes.')";
            
        }

现在，如果我点击按钮控件显示点击功能，但它没有显示onclientclick确认。



希望很快得到帮助:)



谢谢各位朋友



Renga

now if i click button control display the click function, but its not showing the onclientclick confirmbox.

Hope will get help soon :)

Thanks friends

Renga

推荐答案

您没有在按钮点击事件中显示任何显示确认消息的内容。

I相信你不需要写很多东西来显示复选框检查计数。

检查以下答案以使用JQuery实现类似功能

在gridview中计算选中的复选框 [ ^ ]



希望，它帮助。如果这不能解决您的问题，请告诉我：）

You haven't written anything for showing confirmation message in button click event.
I believe you don't need write so many things to show checkbox checked count.
Check the below answer to implement the similar functionality using JQuery
Count the checked checkboxes in gridview[^]

Hope, it helps. In case this doesn't resolve your problem, let me know :)

使用它..

Use it..

btnReturn.OnClientClick = "return confirm('you selected " + j.ToString() + " checkboxes.');";

谢谢&此致，

AARIF SHAIKH

Thanks & Regards,
AARIF SHAIKH

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