删除Asp.Net中的值的语法 [英] Syntax of deleting the values in Asp.Net
本文介绍了删除Asp.Net中的值的语法的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
先生！
asp.net网站中删除操作的语法是什么.我想从gridview中删除记录.
Sir !
What is the syntax of delete operation in asp.net website. I want to remove the records from the gridview.
推荐答案
请参阅以下链接:
CP文章:
在ASP.NET Gridview中插入，更新，删除，将数据源作为SQL服务器，MS Access(mdb/accdb)，XML和Framework为2.0/3.0/3.5/4.0(VS 2005/2008/2010) [使用Gridview插入，更新，删除...简单方法 [ ^ ]
带有Add_Update_Delete操作的GridView [在ASP.NET 2.0中可编辑GridView [ ^ ]
如何在网格视图中动态创建模板列 [ ^ ]
MSDN文章:
在GridView控件中使用TemplateFields [ ASP.NET的GridView示例:使用TemplateFields [
Refer the links below:
CP Articles:
Insert, Update, Delete in ASP.NET Gridview, DataSource as SQL Server, MS Access (mdb/accdb), XML and Framework as 2.0 / 3.0 / 3.5 / 4.0 (VS 2005/2008/2010)[^]
Insert, Update, Delete with Gridview ... Simple Way[^]
GridView with Add_Update_Delete Operations[^]
Editable GridView in ASP.NET 2.0[^]
How to create template columns dynamically in a grid view[^]
MSDN Articles:
Using TemplateFields in the GridView Control[^]
GridView Examples for ASP.NET: Working with TemplateFields[^]
--Amit
要删除记录，您可以这样尝试:
For deleting record u can try like that :
protected void gvDetails_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
// Find the unique column of row
Label lblId = (Label)gvDetails.Rows[e.RowIndex].FindControl("lblSno");
DataTable dt = new DataTable();
dt = Session["Rol"] as DataTable;
// delete the record from data table
for (int i = 0; i < dt.Rows.Count; i++)
{
//
if (dt.Rows[i][0].ToString() == lblId.Text)
{
// write the code for deleting row here .
}
}
dt.AcceptChanges();
Session["Rol"] = dt;
fnBindGrid();// function for binding grid otherwise u can bind here .
}
<asp:gridview id="grid_symptom" cssclass="grid" autogeneratecolumns="False" runat="server" xmlns:asp="#unknown">
DataKeyNames="symptom_id"
OnRowDeleting="grid__symptom_RowDeleting" OnRowEditing="grid_symptom_RowEditing"
OnRowCancelingEdit="grid_symptom_RowCancelingEdit" OnRowUpdating="grid_symptom_RowUpdating"
PageSize="3" AllowPaging="True"
OnPageIndexChanging="grid_symptom_PageIndexChanging">
<alternatingrowstyle backcolor="Beige" />
<pagerstyle cssclass="paging" horizontalalign="Center" />
<columns>
<asp:templatefield headertext="Symptoms">
<edititemtemplate>
<asp:textbox id="txt_edit_symptom" runat="server" text="<%#Eval ("symptom_name") %>"></asp:textbox>
</edititemtemplate>
<itemtemplate>
<asp:label id="lbl_item_symptom" runat="server" text="<%#Eval ("symptom_name") %>"></asp:label>
</itemtemplate>
</asp:templatefield>
<asp:templatefield headertext="Action">
<edititemtemplate>
<asp:imagebutton id="Imgbtn_symptom_Update" commandname="Update" runat="server" imageurl="~/Admin/images/update1.jpg">
ToolTip="Update" />
<asp:imagebutton id="Imgbtn_symptom_Cancel" runat="server" commandname="Cancel" imageurl="~/Admin/images/cancel1.jpg">
ToolTip="Cancel" />
</asp:imagebutton></asp:imagebutton></edititemtemplate>
<itemtemplate>
<asp:imagebutton id="Imgbtn_symptom_edit" commandname="Edit" tooltip="Edit" imageurl="~/Admin/images/edit2.png">
runat="server" />
<asp:imagebutton id="Imgbtn_symptom_delete" commandname="Delete" tooltip="Delete" imageurl="~/Admin/images/delete2.png">
OnClientClick="return confirm('Are you sure,Do you want to delete this Symptoms?');"
runat="server" />
</asp:imagebutton></asp:imagebutton></itemtemplate>
</asp:templatefield>
</columns>
<headerstyle cssclass="gridHeader" />
<footerstyle backcolor="Black" />
<rowstyle cssclass="gridRow" />
<pagersettings firstpagetext="<br" mode="hold" />
protected void grid__symptom_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
MessageHide();
int i = 0;
try
{
int symptomid = int.Parse(grid_symptom.DataKeys[e.RowIndex].Values[0].ToString());
bo.Symptom_id= symptomid;
i = bl.Deletesymptom(bo);
}
catch (Exception ex)
{
ex.ToString();
}
if (i > 0)
{
divDeleteSuc.Visible = true;
}
else
{
divDeleteUsuc.Visible = true;
}
bindgridsymptom();
}
protected void grid_symptom_RowEditing(object sender,GridViewEditEventArgs e)
{
grid_symptom.EditIndex = e.NewEditIndex;
MessageHide();
bindgridsymptom();
}
protected void grid_symptom_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
grid_symptom.EditIndex = -1;
MessageHide();
bindgridsymptom();
}
protected void grid_symptom_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
MessageHide();
int i = 0;
try
{
TextBox txtsymptom = (TextBox)grid_symptom.Rows[e.RowIndex].FindControl("txt_edit_symptom");
int symptomid= int.Parse(grid_symptom.DataKeys[e.RowIndex].Values[0].ToString());
bo.Symptom_id = symptomid;
bo.Symptom_nm = txtsymptom.Text;
i = bl.Updatesymptom(bo);
}
catch (Exception ex)
{
ex.ToString();
}
if (i > 0)
{
divGridUpdateSuc.Visible = true;
}
else
{
divGridUpdateUSuc.Visible = true;
}
grid_symptom.EditIndex = -1;
bindgridsymptom();
}
protected void grid_symptom_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
grid_symptom.PageIndex = e.NewPageIndex;
MessageHide();
bindgridsymptom();
}
这篇关于删除Asp.Net中的值的语法的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
