[英]Only approve the row that is checked from asp gridview
我有一個看起來像這樣的gridview,其中我有幾行:姓名,聯系方式,公司名稱等,並且我包括了一個復選框,因此我可以選擇要批准或不批准的行。
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
CssClass="table table-hover table-striped" EnableViewState="False"
onselectedindexchanged="GridView1_SelectedIndexChanged">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="chkRow" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="Username" HeaderText="Username"
SortExpression="Username" />
<asp:BoundField DataField="LastName" HeaderText="LastName"
SortExpression="LastName" />
<asp:BoundField DataField="FirstName" HeaderText="FirstName"
SortExpression="FirstName" />
<asp:BoundField DataField="CompanyName" HeaderText="CompanyName"
SortExpression="CompanyName" />
<asp:BoundField DataField="EmailAddress" HeaderText="EmailAddress"
SortExpression="EmailAddress" />
<asp:BoundField DataField="CompanyAddress" HeaderText="CompanyAddress"
SortExpression="CompanyAddress" />
<asp:BoundField DataField="IncomeRange" HeaderText="IncomeRange"
SortExpression="IncomeRange" />
<asp:BoundField DataField="CreditRequest" HeaderText="CreditRequest"
SortExpression="CreditRequest" />
<asp:BoundField DataField="ContactNumber" HeaderText="ContactNumber" SortExpression="ContactNumber" />
<%--<asp:TemplateField>
<ItemTemplate>--%>
<%--</ItemTemplate>
</asp:TemplateField>--%>
<asp:CheckBoxField />
<asp:CheckBoxField />
</Columns>
</asp:GridView>
<asp:Button ID="Button1" runat="server" Text="Approve" onclick="Button1_Click" />
我想發生的是,當我單擊批准按鈕時,選中的唯一行將執行后面的代碼。
這是我的代碼背后:
protected void Button1_Click(object sender, EventArgs e)
{
using (SqlConnection scn = new SqlConnection("Data Source = 'PAULO'; Initial Catalog=ShoppingCartDB;Integrated Security =True"))
{
scn.Open();
SqlCommand cmd = new SqlCommand(@"UPDATE UserData SET CreditRequest = CAST(REPLACE(c.CreditRequest, ',', '') as int) FROM CreditRequests c INNER JOIN Userdata u on c.username=u.username Where c.Username=@Username", scn);
cmd.Parameters.Add("@Username", SqlDbType.NVarChar).Value = DSession["New"];
cmd.ExecuteNonQuery();
}
}
UPDATE(我嘗試過此操作,它沒有錯誤,但Approve函數未執行)
protected void Approve(string Username)
{
using (SqlConnection scn = new SqlConnection("Data Source = 'PAULO'; Initial Catalog=ShoppingCartDB;Integrated Security =True"))
{
scn.Open();
SqlCommand cmd = new SqlCommand(@"UPDATE UserData SET CreditRequest = CAST(REPLACE(c.CreditRequest, ',', '') as int) FROM CreditRequests c INNER JOIN Userdata u on c.username=u.username Where c.Username=@Username", scn);
cmd.Parameters.Add("@Username", SqlDbType.NVarChar).Value = Session["New"];
cmd.ExecuteNonQuery();
}
}
protected void Button1_Click(object sender, EventArgs e)
{
foreach (GridViewRow grow in GridView1.Rows)
{
//Searching CheckBox("chkDel") in an individual row of Grid
CheckBox chkdel = (CheckBox)grow.FindControl("chkDel");
//If CheckBox is checked than delete the record with particular empid
if (chkdel.Checked)
{
string Username = grow.Cells[1].Text;
Approve(Username);
}
}
//Displaying the Data in GridView
bindgrid();
}
在Gridview HTML
添加DataKeyNames="ur Primary column"
。 在后面的代碼中,只需遍歷GridView中的所有行,如下所示。
//Loop through all the rows in gridview
foreach (GridViewRow grv in grdEmp.Rows)
{
//Finiding checkbox control in gridview for particular row
CheckBox chk = (CheckBox)grv.FindControl("chkDel");
if (chk.Checked)
{
//get EmpId from DatakeyNames from gridview
int empid = Convert.ToInt32(grdEmp.DataKeys[grv.RowIndex].Value);
cmd = new SqlCommand("Update_Sp", con); //Put ur Inline query here
cmd.Parameters.Add("@Username", SqlDbType.Int).Value = Username; //use as per ur requirments
cmd.CommandType = CommandType.StoredProcedure;
cmd.ExecuteNonQuery();
}
}
grdEmp.EditIndex = -1;
BindEmpGrid();
使用此代碼:
foreach (GridViewRow row in GridView1.Rows)
{
if (row.RowType == DataControlRowType.DataRow)
{
System.Web.UI.WebControls.CheckBox chkrow = (row.Cells[0].FindControl("chkrow") as System.Web.UI.WebControls.CheckBox);
if (chkrow.Checked)
{
string Username = dgvshow.Rows[row.RowIndex].Cells[1].Text.ToString()
Approve(Username);
}
}
}
並在加載網格的頁面加載中使用!ispostback
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