[英]delete row from gridview sql
我希望能夠在單擊該網格視圖上的刪除按鈕時刪除一行。 我有aspx頁面和后面的代碼以及應用程序代碼。 DeletePaymentCondition運行存儲過程以刪除該行。 但是總的代碼不起作用
aspx
<asp:GridView ID="gridview1" runat="server" HorizontalAlign="left" AutoGenerateColumns="false" CssClass="table table-bordered " GridLines="None"
AllowSorting="True" OnRowDeleting="OnRowDeleting">
<Columns>
<asp:TemplateField ItemStyle-HorizontalAlign="left" HeaderText="Payment Condition" HeaderStyle-CssClass="OGColor" HeaderStyle-ForeColor="white" SortExpression="monthToQuarters">
<ItemTemplate>
<span style="font-size:12px; color: #2980b9; text-align:left">
<asp:Label ID="lblUserId" runat="server" Visible="true" Text="<%# bind('payConditionId')%>"/>
</span>
</ItemTemplate>
</asp:TemplateField>
<asp:CommandField ButtonType="Link" ShowEditButton="true" ShowDeleteButton="true" ItemStyle-Width="150"/>
</Columns>
</asp:GridView>
cs
protected void OnRowDeleting(object sender, GridViewDeleteEventArgs e)
{
Label lblEmpID = (Label)gridPayment.Rows[e.RowIndex].FindControl("lblUserId"); //This is Table Id load on Label1
int id = Convert.ToInt32(lblEmpID.Text.ToString());
dsPayment = objcommission.Delete(id);
gridPayment.DataSource = dsPayment.Tables[0];
gridPayment.DataBind();
}
應用程式碼
public DataSet DeletePayment(int id)
{
DataSet dsGetAllPayment;
dsGetAllPaymentCondition = SqlHelper.ExecuteDataset(OGconnection, CommandType.Text, "Delete FROM tblPay where pay ='" + id + "'");
return dsGetAllPayment;
}
您應該執行兩種不同的SQL,一種用於刪除,另一種用於選擇,以檢索新數據。
DELETE
應該在NonQuery
使用來執行,因為它不返回行(僅返回受影響的行數)。
public DataSet DeletePaymentCondition(int ids)
{
int rowsAffected = SqlHelper.ExecuteNonQuery(OGconnection, CommandType.Text, "Delete FROM [Accounting].[dbo].[tblPayConditions] where payConditionId ='" + ids + "'");
DataSet dsGetAllPaymentCondition = SqlHelper.ExecuteDataSet(OGconnection, CommandType.Text, "Select * FROM [Accounting].[dbo].[tblPayConditions]");
return dsGetAllPaymentCondition;
}
作為一個好習慣,您應該考慮將其更改為參數化查詢。 在這種情況下,由於整數轉換是安全的,但是在帶有字符串參數的類似代碼中,您將容易受到SQL Injection攻擊
我找到了解決方案。 我對CS文件以及bradbury9提供的代碼進行了更改。
protected void OnRowDeleting(object sender, GridViewDeleteEventArgs e)
{
int index = Convert.ToInt32(gridPaymentCondition.DataKeys[e.RowIndex].Value.ToString());
dsPaymentCondition = objcommission.DeletePaymentCondition(index);
gridPaymentCondition.DataSource = dsPaymentCondition.Tables[0];
updatePaymentConditionsWithoutRefresh();
}
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