我有一个相当简单的应用程序,它返回一个失败的报告列表,其中包含ID,Name和Time Bound字段以及左侧的Checkbox模板字段。
我有一个'重新安排'按钮,当按下该按钮时,应该选中勾选复选框的行并处理它们。
GridView成功加载,我可以选择/取消选中CheckBoxes但是当我按下'Reschedule'按钮并返回代码时,复选框不再存在。
我知道这与动态控制/回发有关,并且需要重新创建复选框,我已经尝试过对以前类似问题的大量建议,但没有任何效果
GridView - AutoGenerate Columns False(尝试为true)
按钮 - OnClientClick =“”(尝试返回false)
这些字段最初是创建并绑定到数据表(数据表有3列映射到3个绑定字段),如下所示: -
TemplateField tfield = new TemplateField();
failedSchedulesGridView.Columns.Add(tfield);
BoundField bfield1 = new BoundField();
bfield1.HeaderText = "SI_ID";
bfield1.DataField = "si_id";
failedSchedulesGridView.Columns.Add(bfield1);
BoundField bfield2 = new BoundField();
bfield2.HeaderText = "SI_NAME";
bfield2.DataField = "si_name";
failedSchedulesGridView.Columns.Add(bfield2);
BoundField bfield3 = new BoundField();
bfield3.HeaderText = "SI_UPDATE_TS";
bfield3.DataField = "si_update_ts";
failedSchedulesGridView.Columns.Add(bfield3);
failedSchedulesGridView.DataSource = dt;
failedSchedulesGridView.DataBind();
的Page_Load 可以看出我已经尝试在这里重新创建GridView列但它没有工作并被注释掉
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
//TemplateField tfield = new TemplateField();
//failedSchedulesGridView.Columns.Add(tfield);
//BoundField bfield1 = new BoundField();
//bfield1.HeaderText = "SI_ID";
//bfield1.DataField = "si_id";
//failedSchedulesGridView.Columns.Add(bfield1);
//BoundField bfield2 = new BoundField();
//bfield2.HeaderText = "SI_NAME";
//bfield2.DataField = "si_name";
//failedSchedulesGridView.Columns.Add(bfield2);
//BoundField bfield3 = new BoundField();
//bfield3.HeaderText = "SI_UPDATE_TS";
//bfield3.DataField = "si_update_ts";
//failedSchedulesGridView.Columns.Add(bfield3);
}
failedSchedulesGridView.DataSource = dt;
failedSchedulesGridView.DataBind();
}
OnRowDataBound
protected void OnRowDataBound(Object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType != DataControlRowType.Header)
{
cbx++;
CheckBox cb = new CheckBox();
cb.ID = "cb" + cbx;
e.Row.Cells[0].Controls.Add(cb);
}
}
由于未找到checbox,因此在按下“重新计划”按钮后尝试访问复选框时,代码失败: -
protected void ReschedulePB2_Click(object sender, EventArgs e)
{
int i = 0;
foreach (GridViewRow row in failedSchedulesGridView.Rows)
{
i++;
string cbName = "cb" + i;
CheckBox cb = (CheckBox)row.Cells[0].FindControl(cbName);
if (cb.Checked)
答案 0 :(得分:0)
试试这个
将此内容写入您的aspx页面
<asp:GridView ID="failedSchedulesGridView" runat="server" AutoGenerateColumns="False" OnRowDataBound="GridView1_RowDataBound" Width="850px" onrowcommand="GridView1_RowCommand">
<Columns>
<asp:TemplateField >
<HeaderTemplate>
<asp:CheckBox ID="cbHeader" runat="server" />
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox ID="cbItem" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="si_id" HeaderText="SI_ID" SortExpression="si_id" />
<asp:BoundField DataField="si_name" HeaderText="SI_NAME" SortExpression="si_name" />
<asp:BoundField DataField="si_update_ts" HeaderText="SI_UPDATE_TS" SortExpression="si_update_ts" />
</Columns>
</asp:GridView>
您的网页加载应该如下所示
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
failedSchedulesGridView.DataSource = dt;
failedSchedulesGridView.DataBind();
}
}
您的重新安排点击将是
protected void ReschedulePB2_Click(object sender, EventArgs e)
{
foreach (GridViewRow row in failedSchedulesGridView.Rows)
{
CheckBox cb = (CheckBox)row.Cells[0].FindControl("cbItem");
if (cb.Checked)