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#1247 Fix grid filter in network latency conditions when using blazor server #1248

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#1247 Fix grid filter in network latency conditions when using blazor server #1248

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cbcb37a
Fix grid filter in network latency conditions when using blazor server
nathan-hill-datagum Feb 9, 2026
865a98e
Merge main and resolve grid filter conflict
nathan-hill-datagum Jun 23, 2026
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151 changes: 83 additions & 68 deletions blazorbootstrap/Components/Grid/GridColumnFilter.razor.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,22 @@ public partial class GridColumnFilter : BlazorBootstrapComponentBase

private IEnumerable<FilterOperatorInfo>? filterOperators;

private string? filterValue;
private string? _filterValue;
private string? filterValue
{
get => _filterValue;
set
{
if (_filterValue != value)
{
_filterValue = value;
if (GridColumnFilterChanged.HasDelegate)
{
_ = InvokeAsync(() => GridColumnFilterChanged.InvokeAsync(new FilterEventArgs(_filterValue ?? string.Empty, filterOperator)));
}
}
}
}

private string? selectedFilterSymbol;

Expand Down Expand Up @@ -72,61 +87,67 @@ or StringConstants.PropertyTypeNameDecimal
}
}

private RenderFragment InputFilterTemplate => builder =>
{
string inputType;
string inputClass;

switch (PropertyTypeName)
{
case StringConstants.PropertyTypeNameInt16:
case StringConstants.PropertyTypeNameInt32:
case StringConstants.PropertyTypeNameInt64:
case StringConstants.PropertyTypeNameSingle:
case StringConstants.PropertyTypeNameDecimal:
case StringConstants.PropertyTypeNameDouble:
inputType = "number";
inputClass = "form-control";
break;
case StringConstants.PropertyTypeNameDateOnly:
inputType = "date";
inputClass = "form-control";
break;
case StringConstants.PropertyTypeNameDateTime:
inputType = "datetime-local";
inputClass = "form-control";
break;
case StringConstants.PropertyTypeNameBoolean:
inputType = "checkbox";
inputClass = "form-check-input";
break;
default:
inputType = "text";
inputClass = "form-control";
break;
}

builder.OpenElement(100, "input");
builder.AddAttribute(101, "class", inputClass);

builder.AddAttribute(102, "type", inputType);
builder.AddAttribute(103, "value", filterValue);

if (PropertyTypeName == StringConstants.PropertyTypeNameBoolean)
{
if ((bool.TryParse(filterValue, out bool isChecked)) && isChecked)
builder.AddAttribute(104, "checked", "checked");

builder.AddAttribute(106, "onchange", async (ChangeEventArgs args) => await OnFilterValueChangedAsync(args));
}
else
{
builder.AddAttribute(105, "style", filterStyle);
builder.AddAttribute(106, "oninput", async (ChangeEventArgs args) => await OnFilterValueChangedAsync(args));
}

builder.CloseElement();
};
private RenderFragment InputFilterTemplate => builder =>
{
string inputType;
string inputClass;

switch (PropertyTypeName)
{
case StringConstants.PropertyTypeNameInt16:
case StringConstants.PropertyTypeNameInt32:
case StringConstants.PropertyTypeNameInt64:
case StringConstants.PropertyTypeNameSingle:
case StringConstants.PropertyTypeNameDecimal:
case StringConstants.PropertyTypeNameDouble:
inputType = "number";
inputClass = "form-control";
break;
case StringConstants.PropertyTypeNameDateOnly:
inputType = "date";
inputClass = "form-control";
break;
case StringConstants.PropertyTypeNameDateTime:
inputType = "datetime-local";
inputClass = "form-control";
break;
case StringConstants.PropertyTypeNameBoolean:
inputType = "checkbox";
inputClass = "form-check-input";
break;
default:
inputType = "text";
inputClass = "form-control";
break;
}

builder.OpenElement(100, "input");
builder.AddAttribute(101, "class", inputClass);
builder.AddAttribute(102, "type", inputType);

if (PropertyTypeName == StringConstants.PropertyTypeNameBoolean)
{
_ = bool.TryParse(filterValue, out bool isChecked);

builder.AddAttribute(103, "checked", isChecked);
builder.AddAttribute(104, "onchange", EventCallback.Factory.CreateBinder<bool>(this, value => filterValue = value.ToString(), isChecked));
builder.SetUpdatesAttributeName("checked");
}
else
{
builder.AddAttribute(103, "style", filterStyle);
builder.AddAttribute(104, "value", BindConverter.FormatValue(filterValue));

if (PropertyTypeName is StringConstants.PropertyTypeNameDateOnly or StringConstants.PropertyTypeNameDateTime)
builder.AddAttribute(105, "oninput", EventCallback.Factory.Create<ChangeEventArgs>(this, OnFilterValueInput));
else
builder.AddAttribute(105, "oninput", EventCallback.Factory.CreateBinder<string?>(this, value => filterValue = value, filterValue));

builder.SetUpdatesAttributeName("value");
}

builder.CloseElement();
};

private async Task<IEnumerable<FilterOperatorInfo>> GetFilterOperatorsAsync(string propertyTypeName)
{
Expand All @@ -144,9 +165,11 @@ private async Task<IEnumerable<FilterOperatorInfo>> GetFilterOperatorsAsync(stri
private async Task OnEnumFilterValueChangedAsync(object enumValue)
{
filterValue = enumValue?.ToString();
}

if (GridColumnFilterChanged.HasDelegate)
await GridColumnFilterChanged.InvokeAsync(new FilterEventArgs(filterValue!, filterOperator));
private void OnFilterValueInput(ChangeEventArgs args)
{
filterValue = args?.Value?.ToString();
}

private async Task OnFilterOperatorChangedAsync(FilterOperatorInfo filterOperatorInfo)
Expand All @@ -163,21 +186,13 @@ private async Task OnFilterOperatorChangedAsync(FilterOperatorInfo filterOperato
else
{
filterOperator = filterOperatorInfo.FilterOperator;
if (GridColumnFilterChanged.HasDelegate)
await GridColumnFilterChanged.InvokeAsync(new FilterEventArgs(filterValue ?? string.Empty, filterOperator));
}

SetSelectedFilterSymbol();

if (GridColumnFilterChanged.HasDelegate)
await GridColumnFilterChanged.InvokeAsync(new FilterEventArgs(filterValue!, filterOperator));
}

private async Task OnFilterValueChangedAsync(ChangeEventArgs args)
{
filterValue = args?.Value?.ToString();

if (GridColumnFilterChanged.HasDelegate)
await GridColumnFilterChanged.InvokeAsync(new FilterEventArgs(filterValue!, filterOperator));
}

private void SetSelectedFilterSymbol()
{
Expand Down