• DataGridView


    DataGridView

    首先,绑定数据

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    Page_Lode事件

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    一、绑定数据库字段

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    二、传值

    (1) 绑定HyperlinkFirld字段传值

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    (2) 自定义绑定超级链接传值

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    三、分页

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    四、编辑、更新、取消

     1    //编辑
    2 protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
    3 {
    4 GridView1.EditIndex = e.NewEditIndex;
    5 ShowBind();
    6 }
    7
    8
    9
    10 //取消
    11 protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
    12 {
    13 GridView1.EditIndex = -1;
    14 ShowBind();
    15 }


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    //更新

    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

    {

    string id = GridView1.DataKeys[e.RowIndex].Value.ToString();

    string product_name = ((TextBox)GridView1.Rows[e.RowIndex].Cells[1].Controls[0]).Text;

    string amount = ((TextBox)GridView1.Rows[e.RowIndex].Cells[2].Controls[0]).Text;

    string price = ((TextBox)GridView1.Rows[e.RowIndex].Cells[3].Controls[0]).Text;

    string barcode = ((TextBox)GridView1.Rows[e.RowIndex].Cells[4].Controls[0]).Text;

    string sql = "update products set product_name='" + product_name + "',amount='"

    + amount + "',price='" + price + "',barcode='" + barcode + "' where id=" + id;

    SqlConnection conn = new SqlConnection("server=.;database=SuperMarket;uid=sa;pwd=sa");

    SqlCommand cmd = new SqlCommand(sql, conn);

    if (conn.State == ConnectionState.Closed)

    {

    conn.Open();

    cmd.ExecuteNonQuery();

    conn.Close();

    }

    GridView1.EditIndex = -1;

    ShowBind();

    }

    五、删除

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    //更新

    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

    {

    string id = GridView1.DataKeys[e.RowIndex].Value.ToString();

    string product_name = ((TextBox)GridView1.Rows[e.RowIndex].Cells[1].Controls[0]).Text;

    string amount = ((TextBox)GridView1.Rows[e.RowIndex].Cells[2].Controls[0]).Text;

    string price = ((TextBox)GridView1.Rows[e.RowIndex].Cells[3].Controls[0]).Text;

    string barcode = ((TextBox)GridView1.Rows[e.RowIndex].Cells[4].Controls[0]).Text;

    string sql = "update products set product_name='" + product_name + "',amount='"

    + amount + "',price='" + price + "',barcode='" + barcode + "' where id=" + id;

    SqlConnection conn = new SqlConnection("server=.;database=SuperMarket;uid=sa;pwd=sa");

    SqlCommand cmd = new SqlCommand(sql, conn);

    if (conn.State == ConnectionState.Closed)

    {

    conn.Open();

    cmd.ExecuteNonQuery();

    conn.Close();

    }

    GridView1.EditIndex = -1;

    ShowBind();

    }

    删除对话框

    第一种,

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    //删除提示框

    //============= 第一种 ==============

    //*事件(在对行进行数据绑定后的激发)

    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

    {

    if (e.Row.RowType == DataControlRowType.DataRow)

    {

    e.Row.Cells[7].Attributes.Add("onclick", "return confirm('你确认要删除吗?')");

    }

    }

    第二种,事件

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    //删除提示框

    //============= 第二种 ==============

    protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)

    {

    //e.Row.RowType判断gridview的数据行,而不是页眉和页脚

    if (e.Row.RowType == DataControlRowType.DataRow)

    {

    //e.Row.Cells[7].Controls.Count > 0 判断单元格7内是否有控件,如果没有则不进行任何操作,注意点击编辑按钮时,删除按钮不可见

    if (e.Row.Cells[7].Controls.Count > 0)

    {

    if (((LinkButton)(e.Row.Cells[7].Controls[0])).Text == "删除")

    {

    ((LinkButton)(e.Row.Cells[7].Controls[0])).Attributes.Add("onclick", "return confirm('你确认要删除吗?')");

    //e.Row.Cells[7].Attributes.Add("onclick", "return confirm('你确认要删除吗?')");

    }

    }

    }

    }

    六、模版

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  • 原文地址:https://www.cnblogs.com/tangge/p/2212028.html
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