我在更新面板“PanelSearch”中有包含gridview的表，其display属性设置为none 当我第一次加载页面时，我已将表添加到另一个更新面板（主面板）内的占位符中。我在“PanelSearch”中有一个搜索按钮，当用户点击搜索时，我正在从数据库中检索数据并将其绑定到gridview。
gridview有linkbutton作为templatefield和OnCommand事件。 当我点击链接按钮没有事件被触发但我的页面刷新并且“PanelSearch”内的表格消失。
我不知道为什么。谁能帮助我？
我的标记如下;
<asp:UpdatePanel ID="PanelPatientSearch" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<table id="tablePatientSearch" clientidmode="Static" cellpadding="2" cellspacing="2" border="0"
style=" width:98%;display: table; margin-left: 10px;margin-right: 5px" runat="server" class="table">
<tr>
<th style="height:10px;width:100%"></th>
</tr>
<tr>
<td style="text-align: center">
<asp:Label ID="LabelSearchPatient" runat="server" CssClass="sectionHeaderForManagePages"
Text="Search Patient"></asp:Label>
</td>
</tr>
<tr>
<th style="height:10px;width:100%">
</th>
</tr>
<tr>
<td>
<table cellpadding="5" cellspacing="3" width="100%" >
<tr> <th colspan="4">
</th></tr>
<tr>
<th class="textCenterAlign" align="center" colspan="4"><asp:Label ID="labelSelectMessage" runat="server" Text="Search for Patient below or"></asp:Label>  
<asp:Button ID="buttonAddNewPatient" runat="server" CssClass="buttonLarge"
Text="Add Patient" onclick="buttonAddNewPatient_Click" CausesValidation="false" />
</th>
</tr>
<tr> <th colspan="4">
</th></tr>
<tr>
<td class="textRightAlign" width="25%">
<asp:Label ID="LabelPatientId" runat="server" Text="Patient ID" />
</td>
<td class="textLeftAlign" width="25%">
<asp:TextBox ID="textBoxID" runat="server" ClientIDMode="Static" CssClass="textBox" />
<asp:RequiredFieldValidator ID="RFVPatientID" runat="server" ControlToValidate="textBoxID"
CssClass="failureNotification" Display="None" ErrorMessage="Patient ID can not be blank"
SetFocusOnError="True" Width="0px"></asp:RequiredFieldValidator>
<cc1:ValidatorCalloutExtender ID="ValidatorCalloutExtender1" runat="server" CssClass="ajaxvalidatorPopup"
Enabled="True" TargetControlID="RFVPatientID">
</cc1:ValidatorCalloutExtender>
</td>
<td class="textRightAlign" width="25%">
<asp:Label ID="labelFirstName" runat="server" Text="First Name" />
</td>
<td class="textLeftAlign" width="25%">
<asp:TextBox ID="textBoxFirstName" runat="server" CssClass="textBox" />
</td>
</tr>
<tr>
<td class="textRightAlign" width="25%">
<asp:Label ID="labelLastName" runat="server" Text="Last Name" />
<br />
</td>
<td class="textLeftAlign" width="25%">
<asp:TextBox ID="textBoxLastName" runat="server" CssClass="textBox" />
<br />
</td>
<td class="textRightAlign" width="25%">
<asp:Label ID="labelDOB" runat="server" Text="Date of Birth" />
</td>
<td class="textLeftAlign" width="25%">
<asp:TextBox ID="textBoxDOB" runat="server" CssClass="textBox" />
<cc1:CalendarExtender ID="CalendarExtenderAppDate" runat="server" Enabled="True" Format="MM/dd/yyyy" TargetControlID="textBoxDOB">
</cc1:CalendarExtender>
</td>
</tr>
<tr>
<td class="textCenterAlign" colspan="4">
<br />
<asp:Button ID="buttonSearch" runat="server" CssClass="buttonLarge"
Text="Search" onclick="buttonSearch_Click" ClientIDMode="Static" CausesValidation="false" EnableViewState="false" />
<br />
<br />
</td>
</tr>
<tr>
<td colspan="4">
<br />
<asp:GridView ID="GridViewPatients1" runat="server" AutoGenerateColumns="False" CssClass="GridViewFullWidthCss"
EmptyDataText="No Patients are available" AllowPaging="True" OnRowCommand="GridViewPatients1_RowCommand"
AllowSorting="false" EnableViewState="true" ClientIDMode="Static" >
<Columns>
<asp:TemplateField HeaderText="Select">
<ItemTemplate>
<asp:LinkButton ID="linkButtonSelect" runat="server" CommandName="Select" CommandArgument='<%#DataBinder.Eval(Container.DataItem,"PatientID") %>' CausesValidation="false" OnCommand="SelectPatient" Text="Select" EnableViewState="true"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="PatientID" HeaderText="Patient ID" SortExpression="PatientID">
<ItemStyle Width="20%" />
</asp:BoundField>
<asp:BoundField DataField="first_name" HeaderText="First Name" SortExpression="FirstName">
<ItemStyle Width="20%" />
</asp:BoundField>
<asp:BoundField DataField="last_name" HeaderText="Last Name" SortExpression="LastName">
<ItemStyle Width="20%" />
</asp:BoundField>
<asp:BoundField DataField="birth_date" HeaderText="Date of Birth" SortExpression="DOB">
<ItemStyle Width="20%" />
</asp:BoundField>
</Columns>
</asp:GridView>
</td>
</tr>
</table>
</td>
</tr>
</table>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="buttonSearch" EventName="click" />
</Triggers>
</asp:UpdatePanel>
我背后的代码就像这样
protected void SelectPatient(object sender, EventArgs e)
{
LinkButton lnkSelect = (LinkButton)sender;
Session["Selected_Patient_Id"] = lnkSelect.CommandArgument;
}
答案 0 :(得分：0)
生成GridView的RowCommand事件并将其用作..
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if(e.CommandName == "Select")
{
//write what you want to do
}
}
答案 1 :(得分：0)
LinkButton点击事件没有触发，因为它会在您点击它时替换它在页面加载时的事件。
您应该在Page_Load上使用IsPostBack来避免这种情况。我认为您在页面加载时每次DataBind到GridView。
所以忽略这一点并以这种方式使用代码。这对你的问题很有帮助。
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
grid.DataSource = dsGrid;
grid.DataBind();
}
}