我需要在按钮上弹出确认点击使用c＃从asp.net gridview删除行。 下面是按钮单击以从gridview中删除行的代码。在删除之前我需要弹出确认。
这是代码
protected void annDelete_Click(object sender, EventArgs e)
{
foreach (GridViewRow row in GridView1.Rows)
{
CheckBox cb = (CheckBox)row.FindControl("chk_delete");
if (cb.Checked && cb != null)
{
{
int ID_No = Convert.ToInt32(GridView1.DataKeys[row.RowIndex].Value);
MySqlCommand com = new MySqlCommand();
com.CommandText = "Delete from announcement where id = '" + ID_No + "'";
com.Connection = con;
//con.Open();
com.ExecuteNonQuery();
con.Close();
GridView1.DataSource = null;
}
}
}
LoadIssueData();
}
答案 0 :(得分：2)
这适用于gridview中的删除按钮： HTML：
<asp:GridView ID="gv" runat="server" AutoGenerateColumns="False"
AllowPaging="True" AllowSorting="True"
onpageindexchanging="gv_PageIndexChanging"
onsorting="gv_Sorting" GridLines="None" DataKeyNames="ID"
PageSize="20" onrowdeleting="gv_RowDeleting"
onrowdatabound="gv_RowDataBound" >
<PagerSettings FirstPageText="First" LastPageText="Last"
Mode="NumericFirstLast" NextPageText="Next" PageButtonCount="5"
PreviousPageText="Previous" />
<Columns>
<asp:BoundField DataField="SECURITIES_NAME" HeaderText="Securities Name"
SortExpression="SECURITIES" />
<asp:BoundField DataField="FIN_YEAR" HeaderText="Financial Year"
SortExpression="FIN_YEAR" />
<asp:BoundField DataField="RECORD_DATE" HeaderText="Record Date"
SortExpression="RECORD_DATE" />
<asp:BoundField DataField="AGM_DATE" HeaderText="AGM Date"
SortExpression="AGM_DATE" />
<asp:BoundField DataField="CA_SEQ_NO" HeaderText="CA SEQ NO"
SortExpression="CA_SEQ_NO" />
<asp:TemplateField HeaderText="Action">
<ItemTemplate>
<div class="actions">
<asp:LinkButton ID="lbView" runat="server" CausesValidation="True" CommandName="Select" Text="View"></asp:LinkButton>
<asp:LinkButton ID="lbEdit" runat="server" CausesValidation="True" CommandName="Edit" Text="Edit"></asp:LinkButton>
<asp:LinkButton ID="lbDelete" runat="server" OnClientClick="return confirm('Are you sure want to delete the Corporate Action?')" CausesValidation="False"
CommandName="Delete" Text="Delete"></asp:LinkButton>
</div>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<PagerStyle CssClass="pagination-flickr" BorderStyle="None" />
<HeaderStyle BorderStyle="None" />
<AlternatingRowStyle CssClass="altrow" />
</asp:GridView>
the codebehind cs:
protected void Page_Load(object sender, EventArgs e)
{
IsAuthenticated.CheckSession();
if (!IsPostBack)
{
if (Session["setFlash"] != null)
{
if (Session["setFlash"].ToString() == "1")
{
ltrMsg.Text = @"<div class='message-green'>Save Successfully</div>";
Session["setFlash"] = null;
}
else
{
ltrMsg.Text = @"<div class='message'>Not Save Successfully</div>";
Session["setFlash"] = null;
}
}
common.gv(@"Select SECURITIES_ID,BO_FNC_GET_SECURITIES_NAME(SECURITIES_ID) SECURITIES_NAME,
CA_SEQ_NO,FIN_YEAR,RECORD_DATE,AGM_DATE,SETUP_DATE,ID,ROWID From CA_MST", gv);
ViewState["sortingOrder"] = string.Empty;
DataBindGrid("", "");
}
}
protected void gv_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
string wh = "ID='" + gv.DataKeys[e.RowIndex].Values[0].ToString() + "'";
DataProcess.Save("CA_MST", wh);
common.gv(@"Select SECURITIES_ID,BO_FNC_GET_SECURITIES_NAME(SECURITIES_ID) SECURITIES_NAME,
CA_SEQ_NO,FIN_YEAR,RECORD_DATE,AGM_DATE,SETUP_DATE,ID,ROWID FROM CA_MST", gv);
}
protected void gv_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
gv.PageIndex = e.NewPageIndex;
common.gv(@"Select SECURITIES_ID,BO_FNC_GET_SECURITIES_NAME(SECURITIES_ID) SECURITIES_NAME,
CA_SEQ_NO,FIN_YEAR,RECORD_DATE,AGM_DATE,SETUP_DATE,ID,ROWID FROM CA_MST", gv);
}
private void DataBindGrid(string sortExpr, string sortOrder)
{
// GetDataTable returns a filled table
DataTable dt = DataProcess.getDataTable(@"Select SECURITIES_ID,BO_FNC_GET_SECURITIES_NAME(SECURITIES_ID) SECURITIES_NAME,
CA_SEQ_NO,FIN_YEAR,RECORD_DATE,AGM_DATE,SETUP_DATE,ID,ROWID FROM CA_MST");
// any check to validate dt
if (dt != null)
{
DataView dv = dt.DefaultView;
if (sortExpr != string.Empty)
dv.Sort = sortExpr + " " + sortOrder;
this.gv.DataSource = dv;
this.gv.DataBind();
}
else
{
this.gv.DataSource = null;
this.gv.DataBind();
}
}
protected void gv_Sorting(object sender, GridViewSortEventArgs e)
{
DataBindGrid(e.SortExpression, sortingOrder);
}
public string sortingOrder
{
get
{
if (ViewState["sortingOrder"].ToString() == "desc")
ViewState["sortingOrder"] = "asc";
else
ViewState["sortingOrder"] = "desc";
return ViewState["sortingOrder"].ToString();
}
set
{
ViewState["sortingOrder"] = value;
}
}
protected void gv_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
LinkButton lbv = (LinkButton)e.Row.FindControl("lbView");
lbv.PostBackUrl = "CaMstVw.aspx?rid=" + gv.DataKeys[e.Row.RowIndex].Values[0].ToString();
LinkButton lb = (LinkButton)e.Row.FindControl("lbEdit");
lb.PostBackUrl = "CaMstIns.aspx?rid=" + gv.DataKeys[e.Row.RowIndex].Values[0].ToString() ;
}
}
答案 1 :(得分：1)
假设annDelete是一个asp.net按钮控件，您可以输入以下代码来询问客户确认：
HTML：
<asp:Button ID="annDelete" OnClientClick="if(!confirm('Confirm delete?')) return false;"></asp:Button>
return false将避免服务器端命中。
答案 2 :(得分：0)
我们假设你有一个<asp:Button>控件。
只需添加OnClientClick事件，例如：
<asp:Button id="btnDelete" OnClick="annDelete_Click"
OnClientClick="return confirm('Are you sure?');" />
confirm javascript调用将打开OK / Cancel警报，如果用户按下true，则会返回OK，否则您将返回按钮。< / p>
只有在您返回__Post时，该按钮才会继续调用true事件。
答案 3 :(得分：0)
您可以添加OnClientClick属性：
<asp:Button ID="annDelete" OnClientClick="return confirm('do you really want to delete?');" runat="server" Text="Button" OnClick="annDelete_Click" />
如果用户选择 ok ，确认功能将返回 true 并且将调用__doPostBack（）函数，否则 - 不会。