Hi there,
I am using the Datagird control on a website. There you can select some rows in the grid and then you can press a button, that posts some Data to my code behind. That post returns a FileStreamResult. that works 100% correct on my development environment, but when I publish that code it can happen, that I receive the message
"The resource you are looking for has been removed, had its name changed, or is temporarily unavailable." on a blank page.
It looks like it is not deterministic.
Thanks i advance
Here is some code:
<!-- Syncfusion Essential JS 2 Styles -->
<link rel="stylesheet" rel='nofollow' href="https://cdn.syncfusion.com/ej2/material.css" />
<link rel="stylesheet" rel='nofollow' href="https://cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" />
<!-- Syncfusion Essential JS 2 Scripts -->
<script src="https://cdn.syncfusion.com/ej2/dist/ej2.min.js" charset="utf-8"></script>
<ejs-grid id="Grid" rowSelected="RowSelected" rowDeselected="RowDeselected" allowSorting="true" locale="de-DE" allowExcelExport="true" allowPaging="true" height="350px"
toolbar="@(new List<string>(){"Add","Edit","Delete","Update","Cancel","Print","ExcelExport"})">
<e-data-manager json="obj" updateurl="ManageItems/Update" inserturl="ManageItems/Insert" removeurl="ManageItems/Delete" adaptor="RemoteSaveAdaptor"
headers='new Object[] { new Dictionary<string, object>() { { "RequestVerificationToken",token } } }'></e-data-manager>
<e-grid-selectionsettings type="Multiple" persistSelection="true"></e-grid-selectionsettings>
<e-grid-editSettings allowAdding="true" allowDeleting="true" allowEditing="true" mode="Normal" showConfirmDialog="true" showDeleteConfirmDialog="true"></e-grid-editSettings>
<e-grid-columns>
<e-grid-column type="checkbox" width="50" headerText="Alle"></e-grid-column>
<e-grid-column field="Id" isPrimaryKey="true" visible="false" headertext="Id" headerTextAlign="Center"></e-grid-column>
<e-grid-column field="MarketUserId" visible="false" defaultValue=@ViewData["MarketUserId"]></e-grid-column>
<e-grid-column field="MarketId" visible="false" defaultValue=@ViewData["MarketId"]></e-grid-column>
<e-grid-column field="DataArea" visible="false" defaultValue=@ViewData["DataArea"]></e-grid-column>
<e-grid-column field="Description" headertext="Beschreibung" headerTextAlign="Center" validationRules='new Dictionary<string, object>() { { "required", true } }'></e-grid-column>
<e-grid-column field="ExtendedDescription" headertext="Erw. Beschr." headerTextAlign="Center"></e-grid-column>
<e-grid-column field="Color" headertext="Farbe" headerTextAlign="Center"></e-grid-column>
<e-grid-column field="Size" headertext="Größe" headerTextAlign="Center"></e-grid-column>
<e-grid-column field="Price" headertext="Preis" type="number" format="C2" editType="numericEdit" edit="new { @params = new {step=0.1, min=0.1}}" headerTextAlign="Right" textAlign="Right" defaultValue="0"
validationRules='new Dictionary<string, object>() { { "required", true } ,{ "min", 0 } }'>
</e-grid-column>
<e-grid-column field="Quantity" headertext="Menge" type="number" editType="numericedit" headerTextAlign="Right" textAlign="Right" defaultValue="1"
validationRules='new Dictionary<string, object>() { { "required", true },{ "min", 1 } }'>
</e-grid-column>
</e-grid-columns>
</ejs-grid>
function RowSelected(args) {
var erg = updateMsg();
if ((erg.count <= 63 || "@ViewData["UserRole"]?.ToString()" != "seller") ) {
$("#print").removeAttr("disabled");
$("#print").attr("formaction", "ManageItems/Print?req=" + erg.rows + ";" + "@ViewData["DataArea"]" + ";" + "@ViewData["MarketId"]");
}
}
function updateMsg() {
var grid = document.getElementsByClassName('e-grid')[0].ej2_instances[0];
var selectedRecords = grid.getSelectedRecords();
var rows = "";
var count = 0;
for (var i = 0; i < selectedRecords.length; i++) {
rows += selectedRecords[i]["Id"] + ","
count += selectedRecords[i]["Quantity"]
}
var msg = document.getElementById("count");
if("@ViewData["UserRole"].ToString()" === "seller")
msg.innerHTML = "Nur ausgewählte Artikel werden gedruckt (<b>" + count + "</b> von 63)";
else
msg.innerHTML = "Nur ausgewählte Artikel werden gedruckt (" + count + ")";
if (count === 0 || (count > 63 && "@ViewData["UserRole"]?.ToString()" === "seller"))
$("#print").attr("disabled","");
var erg = {
count: count,
rows: rows
};
return erg;
}
and the code behind:
public async Task<IActionResult> OnPostPrintAsync(string req,string returnUrl = null)
{
_user = await _userManager.GetUserAsync(User);
var reqArray = req.Split(';');
if (reqArray.Length == 3)
return CreateItemsPDF(reqArray[0], Guid.Parse(reqArray[1]), Guid.Parse(reqArray[2])); // returns a FileStreamResult
else
return null;
}
