repeater 动态添加一行

最新推荐文章于 2018-12-04 14:42:30 发布

转载最新推荐文章于 2018-12-04 14:42:30 发布 · 371 阅读

本文介绍如何使用 ASP.NET 中的 Repeater 控件创建一个动态更新的表格，包括初始化表格结构、绑定数据源、生成测试数据及通过按钮点击事件添加新行。

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protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
BindData();
}
}

#region 绑定数据源
/// <summary>
/// 绑定repeater的数据源
/// </summary>
private void BindData()
{
DataTable dt = DefineDataTableSchema(hfRptColumns.Value);
LoadTestData(dt);
rptTest.DataSource = dt;
rptTest.DataBind();
}

/// <summary>
/// 生成测试数据
/// </summary>
/// <param name="dt"></param>
private void LoadTestData(DataTable dt)
{
//默认显示5行
for (int i = 0; i < 5; i++)
{
DataRow row = dt.NewRow();
dt.Rows.Add(row);
}

//为第一行加载一些数据
DataRow row0 = dt.Rows[0];
row0["receiver"] = "Mike.Jiang";
row0["expense_amount"] = "1000";
row0["cut_payment_amount"] = "300";
row0["acutal_amount"] = "700";
row0["bank_no"] = "325222222232522";
row0["bank_name"] = "建设银行";
}

/// <summary>
/// 根据repeater相对应的列名，定义数据源datatable的schema
/// </summary>
/// <param name="columns">列名</param>
/// <returns></returns>
public DataTable DefineDataTableSchema(string columns)
{
DataTable dt = new DataTable();
string[] columnsAry = columns.Split(',');
foreach (string str in columnsAry)
{
dt.Columns.Add(str);
}
return dt;
}
#endregion

#region 添加一行
protected void btnAddNewRow_Click(object sender, EventArgs e)
{
//首先，恢复数据源
DataTable dt = DefineDataTableSchema(hfRptColumns.Value);
foreach (RepeaterItem item in rptTest.Items)
{
DataRow newRow = dt.NewRow();
newRow["receiver"] = ((Label)item.FindControl("lblReceiver")).Text;
newRow["expense_amount"] = ((TextBox)item.FindControl("txtExpenseAmount")).Text;
newRow["cut_payment_amount"] = ((TextBox)item.FindControl("txtCutPaymentAmount")).Text;
newRow["acutal_amount"] = ((Label)item.FindControl("lblAcutalAmount")).Text;
newRow["bank_no"] = ((Label)item.FindControl("lblBankNo")).Text;
newRow["bank_name"] = ((Label)item.FindControl("lblBankName")).Text;
dt.Rows.Add(newRow);
}

//添加一行
DataRow row = dt.NewRow();
dt.Rows.Add(row);
rptTest.DataSource = dt;
rptTest.DataBind();
}
#endregion
}